Radiant|Lab Grown|IGI

6.31ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG839621902

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

Certificate IGI LG839621902

Diamond specifications and retailer prices

From $1,116 USD
As of October 29, 2026
Save $581 USD (34%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,910 USD at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 6.31ct lab-grown radiant diamond

This 6.31ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839621902 or 839621902. Listed at 3 retailers as of October 29, 2026, with a 52% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

6.31
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839621902
Dimensions13.11 × 9.08 × 6.01 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.11 mm9.08 mm6.31 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839621902
Side View
Table 67.0%Crown 46°Girdle: MediumPavilion 34.7°Culet: NoneDepth 66.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $5,910 USD|Low: $1,116 USD|High: $5,910 USD|Avg: $2,788 USD
Rare Carat
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$1,116 USD
Retailer 2$1,697 USD
Rare Carat$5,910 USD

26 data points across 3 retailers

3 retailers$1,116 USD to $1,697 USD

A
Cheapest Retailer
-
$1,116 USD
Final sale: no returns
A
Retailer 2
-
$1,697 USD
£1,336 GBP
View
Most Expensive
Rare Carat
839621902 · Oct 19
$5,910 USD
View
Price last confirmed 11 days ago
2 more retailers have this diamond
Prices start from $1,116 USDSave up to $581 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
6.31ct Radiant
$1,116 USD