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Radiant|Lab Grown|IGI

15.91ct F VS2 Radiant Lab Grown Diamond

EX • F/VS2 • IGI LG848623815

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG848623815

Diamond specifications and retailer prices

From $3,300 USD
As of November 1, 2026
Save $10,400 USD (76%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $13,700 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.91ct lab-grown radiant diamond

This 15.91ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG848623815 or 848623815. Listed at 3 retailers as of October 31, 2026, with prices from $3,300 to $13,700, a $10,400 spread on the same certified stone. Brilliant Earth lists it at $13,700. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

15.91
Carat
F
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.6°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848623815
Dimensions17.94 × 12.44 × 8.16 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.94 mm12.44 mm15.91 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848623815
Side View
Table 66.0%Crown 45.6°Girdle: MediumPavilion 34.4°Culet: NoneDepth 65.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $13,700 USD|Low: $3,300 USD|High: $13,700 USD|Avg: $8,024 USD
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$3,300 USD
Retailer 2$4,601 USD
Brilliant Earth$13,700 USD

10 data points across 3 retailers

3 retailers$3,300 USD to $13,700 USD

A
Cheapest Retailer
-
$3,300 USD
Final sale: no returns
A
Retailer 2
-
$4,601 USD
£3,623 GBP
View
Most Expensive
B
Brilliant Earth
22238205A · Oct 31
$13,700 USD
View
2 more retailers have this diamond
Prices start from $3,300 USDSave up to $10,400 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
15.91ct Radiant
$3,300 USD