Diamond Weight Education — Chapter 1
Round Diamond Weight Guide — From mm to Carat (Round 1 pcs Calculator)
Chapter 1 explains how round diameters map to carat weights, the trade table used in the Round 1 pcs Calculator, and how density differences affect equivalent weights for lab diamonds, moissanite and simulants.
Why accurate weight estimate matters
Estimating carat from millimetres is essential for quick quoting, visual matching, and pre-purchase checks. Jewelers and customers rely on millimetre→carat trade tables to decide whether a stone visually matches a specification and to roughly validate expected weight before lab certificates or precision scales are available. Remember — the table gives an estimate only. Exact weight is always measured on a calibrated scale or confirmed by a lab report.
Round Trade Table (mm → carat)
Below is the Round table used in the Round 1 pcs Calculator. It’s the baseline for quick lookups and linear interpolation for in-between sizes.
| Diameter (mm) | Approx Carat (ct) |
|---|---|
| 0.70 | 0.0025 |
| 0.80 | 0.0030 |
| 0.90 | 0.0040 |
| 1.00 | 0.0050 |
| 1.10 | 0.0067 |
| 1.20 | 0.0070 |
| 1.30 | 0.0100 |
| 1.40 | 0.0120 |
| 1.50 | 0.0150 |
| 1.60 | 0.0160 |
| 1.70 | 0.0190 |
| 1.80 | 0.0250 |
| 1.90 | 0.0260 |
| 2.00 | 0.0320 |
| 2.10 | 0.0410 |
| 2.20 | 0.0450 |
| 2.30 | 0.0500 |
| 2.40 | 0.0580 |
| 2.50 | 0.0630 |
| 2.60 | 0.0700 |
| 2.70 | 0.0750 |
| 2.80 | 0.0890 |
| 2.90 | 0.0980 |
| 3.00 | 0.1050 |
| 3.10 | 0.1140 |
| 3.20 | 0.1270 |
| 3.30 | 0.1400 |
| 3.40 | 0.1550 |
| 3.50 | 0.1700 |
How the Calculator uses this table
Our Round 1 pcs Calculator follows this logic:
- Exact match: If you enter a diameter that exists in the table, the calculator returns the table carat directly.
- Interpolation: For diameters between table rows, it performs a linear interpolation between the two nearest table rows (simple, robust for small steps).
- Fallback formula: If outside table bounds, the calculator falls back to a geometric estimate using a length×width×depth formula adapted for round stones (trade-standard approximation).
Tip: The calculator also accepts depth % and fancy shape L×W input — the table is used mainly for standard round brilliants where merchant trade tables are accurate and convenient.
Material Comparison: Natural / Lab / Moissanite / Simulant
Carat is mass. The same volume of different materials produces different grams (and therefore different carats) because density changes. Our calculator computes a diamond-baseline carat (based on the table or formula) and then scales this by material density to show equivalent carat for:
- Natural diamond — density ≈ 3.51 g/cm³ (baseline)
- Lab-grown diamond — density ≈ 3.51 g/cm³ (same as natural for carat comparison)
- Moissanite — density ≈ 3.22 g/cm³ (slightly lighter for same volume)
- Simulant (CZ) — density ≈ 5.65 g/cm³ (heavier for the same volume)
Example: if a 3.00 mm round maps to 0.1050 ct for diamond base, moissanite would be about 0.1050 × (3.22 / 3.51) ≈ 0.096 ct, while CZ would be 0.1050 × (5.65 / 3.51) ≈ 0.169 ct.
Worked example
Scenario: You enter Diameter = 2.00 mm and Depth = 61% into the Round 1 pcs Calculator.
- Table lookup: diameter 2.00 mm → base carat = 0.0320 ct (from table).
- Material scaling:
- Natural/Lab diamond → 0.0320 ct (density ratio 1.00).
- Moissanite → 0.0320 × (3.22/3.51) = 0.0293 ct.
- CZ → 0.0320 × (5.65/3.51) = 0.0515 ct.
- Calculator shows the comparison table so you can clearly see how identical size yields different carat readings by material.
Practical Tips & Best Practices
- Use the table for quick checks — it’s the fastest and matches trade practice for small rounds.
- Prefer measured carat for valuation — use a calibrated scale or lab report for any sale, purchase, or insurance valuation.
- Depth matters: if you have unusual depth % the table estimate can diverge — enter depth into the calculator for a better estimate.
- Material label: always record whether the stone is natural, lab, moissanite or simulant — mass and value differ widely.
Frequently Asked Questions
Q: Is the table exact for every round diamond?
A: No — the table is a practical trade reference and an approximation. Cut style and exact pavilion depth change volume slightly. Use it for quick estimation; rely on lab measurements for exact mass.
Q: Why is CZ heavier than diamond for the same size?
A: Cubic zirconia has a higher density (≈5.65 g/cm³) than diamond (≈3.51 g/cm³). So the same physical volume has more mass — and therefore higher carat — for CZ.
Q: Can I trust the interpolated values?
A: Linear interpolation between nearby table rows gives a good approximation for small mm steps. Most trade tools (and our calculator) use an identical approach for speed and simplicity.
Key Takeaway
The Round trade table is your quick reference to estimate carat from millimetres. For accurate mass use laboratory scales and reports. Use the calculator to compare how the same size behaves across Natural, Lab, Moissanite and Simulant materials — it instantly shows how density affects expected carat.
Material Weight Comparison — Diamond vs Lab vs Moissanite vs CZ (Simulant)
Same size, different carat weight — this chapter explains why. Density values, exact weight ratios, sample calculations, and the comparison method used in the Diamond Size Calculator.
Why Material Matters in Weight Calculation
Two stones with the exact same millimetre size can have different carat weights depending on the material. Carat is mass — not size. This is why the Diamond Calculator shows different results for Natural Diamond, Lab-Grown Diamond, Moissanite and Simulant (CZ).
Understanding Density — The Core of Weight Difference
Density measures how tightly packed atoms are inside a gemstone. Higher density → more grams → more carats (for the same volume).
Density Table (Key Materials)
| Material | Density (g/cm³) | Weight vs Diamond | Notes |
|---|---|---|---|
| Natural Diamond | 3.51 | 1.00× | Baseline reference |
| Lab-Grown Diamond | 3.51 | 1.00× | Same density as natural |
| Moissanite | 3.22 | ≈0.92× | Slightly lighter |
| Simulant (CZ) | 5.65 | ≈1.61× | Heaviest common simulant |
Carat Formula Used in the Calculator
The calculator works in two steps:
- Compute Diamond-base Carat — from the round mm→carat table or shape volume formula for fancy stones.
-
Scale by Material Density —
finalCarat = baseCarat × (materialDensity / 3.51)
Master Comparison Ratios
| Material | Weight Ratio vs Diamond | Meaning |
|---|---|---|
| Natural / Lab Diamond | 1.00× | Reference baseline |
| Moissanite | ≈0.917× | ~8.3% lighter for same size |
| Simulant (CZ) | ≈1.61× | ~61% heavier for same size |
Worked Examples
Example 1 — 3.00 mm Round
- Base (Diamond) = 0.105 ct
- Moissanite = 0.105 × (3.22/3.51) ≈ 0.096 ct
- CZ = 0.105 × (5.65/3.51) ≈ 0.169 ct
Example 2 — 2.00 mm Round
- Base Diamond = 0.032 ct
- Moissanite ≈ 0.029 ct
- CZ ≈ 0.051 ct
Example 3 — Fancy Shape (5×3 mm, depth 60%)
The calculator estimates volume from L×W×Depth, converts to a diamond-base carat, then applies density scaling:
- Diamond ≈ 0.19 ct
- Moissanite ≈ 0.175 ct
- CZ ≈ 0.305 ct
Why Materials Look Different Even at Same Size
Optical properties (brilliance, dispersion) and density differ across materials. Moissanite tends to appear more brilliant and often appears larger "face-up" at the same mm size. CZ is heavier but visually softer; lab diamonds match natural diamonds in both weight and appearance.
Frequently Asked Questions
Q: Why does Moissanite look bigger but weigh less?
Because its density is lower than diamond; same volume produces lower mass.
Q: Is CZ heavier than diamond?
Yes — CZ density (≈5.65 g/cm³) is significantly higher than diamond (≈3.51 g/cm³), so it weighs more for the same physical size.
Q: Will the calculator show all type comparisons?
Yes — the Diamond Size Calculator displays estimated weights for selected and all materials using the density scaling method described above.
Key Takeaway
Material density controls carat weight. Natural & Lab Diamonds weigh the same. Moissanite is slightly lighter; CZ is significantly heavier. Use the Diamond Size Calculator to get exact comparisons for any mm size.
Fancy Shape Carat Guide — Oval, Pear, Emerald, Marquise, Cushion & More
Every fancy shape has a different face-up size, depth requirement and carat distribution. This chapter explains how mm size converts to estimated carat for all major shapes used in our Diamond Size Calculator.
How Fancy Shape Carat Estimation Works
Fancy shapes (Oval, Pear, Emerald, Cushion, Marquise, Princess, Radiant, etc.) do not follow the same volume pattern as Round diamonds. Each has unique geometry that affects weight.
The Diamond Calculator uses:
- L × W × Depth (mm) to estimate volume
- a shape factor to adjust accuracy
- material density (Diamond, Moissanite, CZ)
Length–Width Ratio (L/W Ratio)
L/W ratio defines how “stretched” or “square” a shape appears. It also impacts carat weight.
• Oval: 1.35–1.45
• Pear: 1.45–1.55
• Marquise: 1.9–2.2
• Emerald: 1.35–1.50
• Cushion: 1.00–1.05 (square) or 1.15–1.25 (rectangular)
Depth % Impact on Carat Weight
Depth has the highest influence on carat estimation for fancy shapes.
- Shallow stones → lower weight but face-up larger
- Deep stones → heavier but face-up smaller
Typical depth ranges:
- Oval: 58–64%
- Pear: 58–65%
- Emerald: 62–70%
- Cushion: 64–70%
- Marquise: 58–62%
- Princess: 68–75%
Shape Correction Factors (Used in Calculator)
Each shape needs a correction factor to match actual trade carat charts.
| Shape | Correction Factor | Meaning |
|---|---|---|
| Oval | 0.0080 | Medium volume |
| Pear | 0.0075 | Lower top volume |
| Marquise | 0.0082 | Long pointed tips |
| Emerald | 0.0085 | Step-cut, deep pavilion |
| Princess | 0.0090 | High volume structure |
| Cushion | 0.0086 | Soft square, deep cut |
Reference Size Table (Example Fancy Shapes)
Below: estimated carat (Diamond density) for popular fancy-shape sizes at 62% depth.
| Shape | Size (mm) | Est. Carat |
|---|---|---|
| Oval | 7×5 mm | ≈ 0.90 ct |
| Pear | 8×5 mm | ≈ 0.85 ct |
| Emerald | 7×5 mm | ≈ 1.00 ct |
| Princess | 5×5 mm | ≈ 0.75 ct |
| Cushion | 6×5 mm | ≈ 0.95 ct |
| Marquise | 10×5 mm | ≈ 1.00 ct |
Real Examples (mm → Carat)
Example 1 — Oval 8×6 mm
- L/W Ratio = 1.33
- Depth = 62%
- Estimated Carat ≈ 1.30 ct
Example 2 — Emerald 8×6 mm
- Rectangular step-cut produces higher volume
- Estimated Carat ≈ 1.40 ct
Example 3 — Pear 9×6 mm
- More tapered volume
- Estimated Carat ≈ 1.10 ct
Shape-by-Shape Notes
Oval
Largest face-up look per carat among major shapes.
Pear
Top half contributes less to weight → lighter than Oval for same mm.
Marquise
Long shape but moderate depth → weight sits in the mid-body.
Emerald
Deep pavilion structure → heavier per mm than oval/pear.
Princess
Highest volume among fancy shapes → heavier than it looks.
Cushion
Deep cut + curved sides → weight comparable to emerald.
FAQ
Q: Do two stones with same mm always have same carat?
No — depth and shape change total volume significantly.
Q: Why does Oval look bigger than Cushion?
Oval has larger surface area; Cushion carries more weight in depth.
Q: Is Princess always heavier?
Yes — its geometry packs more volume per mm.
Key Takeaway
Fancy shapes do not follow round-diamond rules. Each shape has its own depth profile, volume, and weight behavior. Use the Diamond Size Calculator to get accurate estimations for all shapes and materials.
Diamond Cut Science — Depth, Table, Angles, Spread & Weight Retention Explained
Cut is the most important “C” in diamonds. It controls light return, brilliance, sparkle, size appearance, and weight. This chapter explains the science of diamond cut, how proportions affect beauty and carat weight, and why two stones with the same carat can look completely different.
What “Cut” Really Means
Cut is not just the shape (round, oval, princess). Cut refers to how well a diamond is crafted to reflect and return light. It is the only “C” controlled by humans. Even a flawless (IF) or colorless (D) diamond will look dull if cut poorly.
Cut determines three optical effects:
- Brightness — white light return.
- Fire — dispersion of colors.
- Scintillation — sparkle flashes during movement.
Main Cut Proportions
The major proportions that define cut are:
- Depth %
- Table %
- Crown angle & height
- Pavilion angle & depth
- Girdle thickness
- Culet size
- Symmetry & polish
Depth: 61–62.5%
Table: 54–57%
Crown Angle: 34–35°
Pavilion Angle: 40.6–41.0°
Depth % — The Most Important Cut Factor
Depth is the height of the diamond from table to culet. It strongly influences brilliance and weight.
Depth % = (Total Depth in mm ÷ Average Diameter) × 100
How depth affects the diamond:
- Too shallow → leaks light (fisheye effect)
- Too deep → traps light (nail-head effect)
- Ideal depth → maximum brilliance
Table % — The Window Into the Diamond
The table is the flat top facet. Its size controls how much light enters and exits.
Effects of table size:
- Small table (<53%) → more fire, less brightness
- Large table (>60%) → more brightness, less fire
- Ideal table (54–57%) → perfect balance
Crown & Pavilion Angles
Angles determine how light bounces inside the diamond.
Crown angle ≈ 34–35°
Pavilion angle ≈ 40.6–41.0°
Spread — Why Some Diamonds Look Bigger
Spread is the face-up size (mm diameter) compared to the diamond’s carat weight.
A diamond with good spread looks visually larger.
| Cut Type | 1.00 ct Diameter | Appearance |
|---|---|---|
| Shallow | 6.6 – 6.7 mm | Looks bigger |
| Ideal | 6.3 – 6.4 mm | Perfect balance |
| Deep | 6.1 – 6.2 mm | Looks smaller |
Weight Retention — Why Cutters Make Diamonds Deep
Cutters aim to retain as much rough weight as possible to increase value. This often leads to deeper diamonds that face up smaller.
- Deep cut = more carat weight → higher price
- Shallow cut = more spread but lower weight
- Ideal cut = perfect balance
Shallow vs Deep Cuts (Visual + Weight Impact)
| Type | Impact |
|---|---|
| Shallow | Bigger size, less fire, light leakage |
| Ideal | Perfect brilliance, ideal size |
| Deep | Smaller face-up, heavier, darker center |
GIA / IGI Cut Grades (Explained)
- Excellent — top brilliance, ideal proportions
- Very Good — slight deviations, still beautiful
- Good — noticeable leakage or weight bias
- Fair / Poor — low brilliance, deep or shallow
Frequently Asked Questions
Q: Does cut affect carat weight?
Yes — deep stones weigh more; shallow stones weigh less.
Q: Can two 1-carat diamonds look different in size?
Yes — spread differences can be as large as 0.5 mm or more.
Q: Should I always choose Ideal Cut?
For round diamonds: yes, if budget allows. For fancy shapes, proportions matter more than cut grade.
Key Takeaway
Diamond cut is the most important factor for beauty. Cut determines brilliance, fire, sparkle, spread, and even apparent size. Always prioritize cut quality, as no amount of color or clarity can compensate for poor cut.
Diamond Color Science — The Complete D–Z Guide, Fluorescence, Face-Up Color & Shape Influence
Diamond color is one of the most misunderstood aspects of grading. This chapter explains the entire D–Z scale, how color appears face-up, how shapes affect visible color, the effect of fluorescence, and how to choose the best balance between beauty and budget.
What Diamond Color Really Means
Diamond “color” refers to the presence of yellow or brown tint in a stone. The grading scale starts from D (completely colorless) and gradually increases in tint down to Z (light yellow/light brown).
Colorless diamonds reflect the most light and appear icy white, while diamonds lower on the scale appear warmer.
The D–Z Color Scale (Explained)
Below is the complete GIA/IGI scale. Each grade represents a subtle shift in body color.
| Grade | Category | Description |
|---|---|---|
| D | Colorless | Absolutely colorless |
| E–F | Colorless | Trace color visible only to experts |
| G–H | Near Colorless | Warmth barely visible |
| I–J | Near Colorless | Slight tint visible |
| K–M | Faint | Noticeable tint |
| N–R | Very Light | Light yellow/brown |
| S–Z | Light | Obvious color |
Face-Up Color vs Side Color
Diamonds are graded from the side, but worn face-up. These two views do not always match.
Face-up color is influenced by:
- Cut quality (better cut → whiter appearance)
- Shape (some hide color better)
- Light environment
- Fluorescence
How Different Shapes Show Color
Different shapes show or hide color due to their geometry and facet pattern.
| Shape | Color Visibility | Notes |
|---|---|---|
| Round | Least | Best at hiding tint |
| Oval | Medium | Bow-tie can increase warmth |
| Pear | Medium | Color concentrated at tip |
| Marquise | High | Ends show color strongly |
| Emerald | High | Large windows show tint |
| Cushion | High | Deep pavilions trap warmth |
Fluorescence — Blue Glow Under UV Light
Fluorescence is the diamond’s reaction to ultraviolet (UV) light. About 30% of diamonds show some fluorescence.
How fluorescence affects appearance:
- None / Faint → no effect
- Medium Blue → can make H–J color diamonds look whiter
- Strong Blue → highly beneficial for warm colors
- Very Strong → rare cases may look hazy
How Metal Choice Affects Diamond Color
The ring’s metal can make your diamond appear warmer or whiter.
Effect by metal:
- White Gold / Platinum → makes diamonds look whiter
- Rose Gold → enhances warm tones (great for I–M)
- Yellow Gold → blends tint, making K–M look intentional
Quick Reference Color Chart
| Color Grade | Best Setting | Recommended Cut |
|---|---|---|
| D–F | Platinum / White Gold | Excellent |
| G–H | White Gold | Excellent / Very Good |
| I–J | White or Rose Gold | Excellent |
| K–M | Yellow / Rose Gold | Very Good |
Color Recommendations (Budget vs Beauty)
Best balance for Round diamonds:
G–H (near colorless, looks white, excellent value)
Best for Ovals / Pears / Marquise:
F–H (because elongated shapes show more color)
Best for Emerald & Cushion:
E–G (step-cuts reveal color easily)
Best budget pick:
I–J in excellent cut rounds; appears white face-up.
FAQ
Q: Does higher color always look better?
No — cut quality is more important for face-up beauty.
Q: Do lab diamonds have the same color scale?
Yes — IGI/GIA grade lab diamonds using the same D–Z system.
Q: Does fluorescence lower the price?
Usually yes — but it can be a benefit for I–M colors.
Key Takeaway
Diamond color affects price, brilliance, metal choice, and the overall look. The best balance for most buyers is the Near-Colorless range (G–H). Cut quality and diamond shape strongly influence how color appears face-up, making color selection a strategic part of choosing the perfect diamond.
Diamond Clarity Science — Inclusions, Eye-Clean Diamonds, Clarity Grades & How to Choose the Best Clarity
Diamond clarity measures how free a gemstone is from internal and external imperfections. This chapter explains every clarity grade, the types of inclusions, the science behind eye-clean diamonds, and professional buying tips for each shape and budget.
What Diamond Clarity Really Means
Clarity refers to the presence of internal inclusions and external blemishes inside a diamond. These natural characteristics form during crystal growth and make every diamond unique.
Clarity is graded under 10× magnification based on:
- Number of inclusions
- Size
- Location
- Color/visibility
- Type (feathers, clouds, crystals, etc.)
The Complete Clarity Scale (FL → I3)
| Grade | Category | Description |
|---|---|---|
| FL | Flawless | No inclusions or blemishes under 10× |
| IF | Internally Flawless | No internal inclusions; tiny surface marks |
| VVS1–VVS2 | Very Very Slight | Extremely tiny inclusions, hard to see even for graders |
| VS1–VS2 | Very Slight | Small inclusions, minor visibility under 10× |
| SI1–SI2 | Slightly Included | Visible under 10×; SI1 often eye-clean |
| I1–I3 | Included | Obvious inclusions; may affect durability |
Types of Inclusions
Different inclusions have different levels of visibility and impact.
- Feathers – White fractures; safe if small
- Clouds – Group of tiny crystals, can affect brilliance
- Pinpoints – Tiny dots; harmless
- Crystals – Mineral crystals inside the diamond
- Needles – Thin crystals; usually invisible
- Cavities – Small pits; more visible
- Indented Naturals – Natural surface from rough
Eye-Clean Diamonds (The Real-World Standard)
An “eye-clean” diamond shows no visible inclusions to the naked eye from ~20–30 cm distance.
Eye-clean levels by clarity grade:
- FL–VS2 → always eye-clean
- SI1 → usually eye-clean
- SI2 → sometimes eye-clean (depends on placement)
- I1–I3 → rarely eye-clean
How Shape Influences Clarity Visibility
Some shapes hide inclusions well, while others highlight them.
| Shape | Clarity Visibility | Notes |
|---|---|---|
| Round | Lowest | Sparkle hides inclusions |
| Oval / Pear / Marquise | Medium | Bow-tie area can show inclusions |
| Princess | Medium-High | Sharp corners reveal imperfections |
| Emerald | Very High | Step-cut is very transparent |
| Cushion | Medium-High | Large facets reveal inclusions |
Clarity Recommendations by Shape & Budget
Best overall (value + beauty):
VS2 or SI1 — typically eye-clean and budget-friendly.
Round Diamond:
SI1 is usually eye-clean — best value.
Oval / Pear / Marquise:
VS2 (because inclusions show along the bow-tie).
Emerald / Asscher:
VS1 or higher — step-cuts are transparent, showing everything.
Budget pick:
SI1–SI2 (if inclusion sits on the edges).
Clarity Reference Chart
| Clarity Grade | Eye-Clean? | Best For |
|---|---|---|
| FL–IF | Yes | Collectors |
| VVS1–VVS2 | Yes | High-end buyers |
| VS1–VS2 | Yes | Everyday ideal choice |
| SI1 | Usually | Best value for Round |
| SI2 | Sometimes | Budget shoppers |
| I1–I3 | Rarely | Avoid unless inspected closely |
Frequently Asked Questions
Q: Which clarity is the best value?
SI1 (for rounds) and VS2 (for fancy shapes).
Q: Is clarity more important than color?
Usually no — cut and color affect appearance more than clarity.
Q: Are SI diamonds good quality?
Yes — if inclusions are small and near edges, they are excellent buys.
Key Takeaway
Clarity is important, but not all inclusions affect the diamond’s beauty equally. Focus on choosing an eye-clean diamond, not the highest clarity grade. For most buyers, VS2 or SI1 provides the perfect balance of price and appearance.
Diamond Shape Library — Visual Guide & Practical Notes (SVG silhouettes)
All popular shapes plus special cuts — silhouettes, ideal proportions, how they show color & clarity, and recommended uses. Shapes displayed in rows of five for easy comparison.
Round Brilliant
Princess
Oval
Pear
Marquise
Emerald
Asscher
Radiant
Cushion
Heart
Baguette
Trilliant / Trapezoid
Kite
Hexagon
Half Moon
Shield
Pentagon
Trapezoid
Modified Shield
Other / Custom
Detailed Notes — What to check for each shape
- Round: Prioritize cut grade (Excellent/Very Good). Color and clarity can be slightly lower if cut is top-notch.
- Princess: Inspect corners for chips; clarity around corners matters. Good for modern settings.
- Oval: Watch for bow-tie; choose L/W ratio per finger length (longer looks elegant).
- Pear: Check symmetry and the sharpened tip; tip-protection in setting is recommended.
- Marquise: Ensure even length and no “fish-eye” in the center; check color at ends.
- Emerald / Asscher: Step cuts show clarity & color — choose higher clarity and color grades.
- Cushion: Many variants — pillow-like or rectangular; deep pavilion is common so verify spread vs weight.
- Heart: Symmetry is everything — the cleft should be crisp and the lobes balanced.
- Baguette / Trapezoid: Used for accents — match length & angle to the center stone for harmony.
- Special Shapes (Kite, Hexagon, Half Moon): Usually custom — ask for exact proportions, especially for settings with halos or bezels.
1) Know the L/W ratio you want.
2) Confirm symmetry & polish.
3) Check where inclusions sit relative to prongs or facets.
4) For elongated shapes, inspect for bow-tie and color concentration.
5) Ask for face-up photos at 1:1 and a 360° video if possible.
SEO & UX Tip
You can anchor these shapes into your product pages so customers can jump directly from a product listing to a shape explanation — use anchor links like /pages/shape-library#oval.