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LG783669118
| Field | Value |
|---|---|
| Shape | Coffin |
| Carat weight | 3.03 |
| Color / Clarity | E / VVS2 |
| Polish / Symmetry | Excellent / Excellent |
| Fluorescence | None |
| Measurements | 12.86 × 7.50 × 4.48 mm |
| Report date | 2026-03-21 |
Face-up size
Coffin Diamond Specifications
Grading: color, clarity and finish
| Shape | Coffin |
|---|---|
| Carat weight | 3.03 |
| Color | E |
| Clarity | VVS2 |
| Polish | Excellent |
| Symmetry | Excellent |
| Fluorescence | None |
Measurements in mm
| Length | 12.86 mm |
|---|---|
| Width | 7.50 mm |
| Depth | 4.48 mm |
| L/W ratio | 1.71 |
| Growth | CVD Type IIa |
| Location | New York |
IGI certificate
| Lab | IGI |
|---|---|
| Report # | LG783669118 |
| Report date | 2026-03-21 |
“This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa”
Verify on IGICoffin Proportions, Drawn to Scale
Side profile and top view
Proportions
| Table | 65.0% |
|---|---|
| Total depth | 59.7% |
| Crown angle | 39.5° |
| Crown height | 15.0% |
| Pavilion angle | 39.5° |
| Pavilion depth | 42.5% |
| Girdle | Thin |
| Culet | None |
| Length | 12.86 mm |
| Width | 7.50 mm |
About Coffin diamonds
An elongated six-sided outline, wider near one end, with step-cut facets. This one: 65.0% table, 59.7% depth.
Need it matched or set?
Set this diamond, find matched pairs, or send a spec and we'll source or cut to it.
- 24-hour CAD · 4–6 working days to finished
- Gold (14K/18K), silver, platinum · No MOQ
In our NYC Diamond District office
| Location | 36 W 47th St, Ste 601A |
|---|---|
| US shipping | Same day before 6 PM ET |
| International | 3–4 business days |
| Minimum order | No MOQ |
Similar Coffin Lab-Grown Diamonds
Buying Coffin Diamonds Wholesale: FAQ
How big is a 3.03 carat Coffin?
This 3.03 carat Coffin measures 12.86 × 7.50 mm face-up and 4.48 mm deep. Shapes and cuts carry their weight differently, so compare diamonds by their mm size, not only by carat.
How fast does this diamond ship?
Orders placed before 6 PM ET ship the same day from New York. International delivery takes 3–4 business days.
Is the certificate real, and can I check it?
Yes. This diamond carries IGI report LG783669118, and you can verify it on IGI's website. We carry 10,000+ IGI/GIA-certified diamonds in stock. For how grading works, see GIA's guide to diamond quality factors.
How do I see the price?
Prices are shown to trade accounts only. Guru Diam sells to jewelers, retailers, designers and manufacturers. Applications submitted before 4 PM ET are approved the same business day, otherwise the next business day.
Is this diamond lab-grown or natural?
This one is lab grown, CVD Type IIa, as stated on its IGI report. Lab-grown diamonds must be disclosed as such when you resell them; see our guide to FTC lab-grown diamond disclosure rules and the FTC's jewelry business guidance. We also carry certified natural diamonds, so if you need a natural Coffin, ask us.
Wholesale Coffin Lab Grown Diamonds
Guru Diam is a B2B diamond supplier on 47th Street in the NYC Diamond District and in the Los Angeles diamond district, selling natural and lab-grown diamonds wholesale to jewelers, retailers, designers and manufacturers. Our loose lab-grown diamonds come in classic and antique cuts, each with its own IGI or GIA certificate.
A 3.03 carat Coffin measures 12.86 x 7.50 mm, so a jeweler can plan a setting before calling. Every certified diamond has its own page with full grading and proportions. Browse all Coffin lab-grown diamonds, read about wholesale lab grown diamonds in the NYC Diamond District, or see our certified natural diamonds. Lab diamonds and natural diamonds are sold to the trade only: open a trade account, or learn more about Guru Diam.