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LG791635621
| Field | Value |
|---|---|
| Shape | Oval |
| Carat weight | 4.20 |
| Color / Clarity | Fancy Brown / VS2 |
| Polish / Symmetry | Excellent / Excellent |
| Fluorescence | Very slight |
| Measurements | 12.56 × 8.23 × 5.37 mm |
| Report date | 2026-04-18 |
| Treatment | Post-growth treatment indicated on IGI report |
Face-up size
Fancy Brown Oval Diamond Specifications
Grading: fancy color, clarity and finish
| Shape | Oval |
|---|---|
| Carat weight | 4.20 |
| Color | Fancy Brown |
| Intensity | Fancy |
| Hue | Brown |
| Clarity | VS2 |
| Polish | Excellent |
| Symmetry | Excellent |
| Fluorescence | Very slight |
Measurements in mm
| Length | 12.56 mm |
|---|---|
| Width | 8.23 mm |
| Depth | 5.37 mm |
| L/W ratio | 1.53 |
| Growth | CVD |
| Location | Los Angeles |
IGI certificate
| Lab | IGI |
|---|---|
| Report # | LG791635621 |
| Report date | 2026-04-18 |
| Treatment | Post-growth treatment indicated on IGI report |
“This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Indications of post-growth treatment.”
Verify on IGIFancy Brown Oval Proportions, Drawn to Scale
Side profile and top view
Proportions
| Table | 63.0% |
|---|---|
| Total depth | 65.2% |
| Crown angle | 33.5° |
| Crown height | 12.5% |
| Pavilion angle | 30.8° |
| Pavilion depth | 48.0% |
| Girdle | Slightly thick to thick (faceted) |
| Culet | Pointed |
| Length | 12.56 mm |
| Width | 8.23 mm |
About Fancy Brown diamonds
“Fancy” is the intensity grade and “Brown” the hue on the IGI report. A brown lab-grown diamond like this one suits colored center diamonds and halos. We carry 8 fancy colors: Black, Blue, Brown, Brownish, Green, Orange, Pink and Yellow.
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 Los Angeles office
| Location | 607 S Hill St #241 |
|---|---|
| US shipping | Same day before 6 PM ET |
| International | 3–4 business days |
| Minimum order | No MOQ |
Similar Fancy Brown Lab-Grown Diamonds
Buying Fancy Brown Lab-Grown Diamonds Wholesale: FAQ
Is the color treated?
The IGI report states: “This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Indications of post-growth treatment.” We show this on the page and in the certificate table, and it should be disclosed when you resell the diamond.
How big is a 4.20 carat oval?
This 4.20 carat oval measures 12.56 × 8.23 mm face-up and 5.37 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 Los Angeles. International delivery takes 3–4 business days.
Is the certificate real, and can I check it?
Yes. This diamond carries IGI report LG791635621, 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, as stated on its IGI report. The report also indicates post-growth treatment. 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 diamond, ask us.
Wholesale Fancy Color 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 fancy color lab grown diamonds wholesale range covers 8 colors, each diamond with its own IGI certificate.
This fancy brown lab grown diamond is a 4.20 carat oval measuring 12.56 x 8.23 mm, IGI certified. Browse every brown lab-grown diamond, all fancy color 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.