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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 $1,589 AUD
$1,116 USD
As of October 29, 2026
Save $827 AUD (34%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $8,413 AUD 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
Colour
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

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $8,413 AUD|Low: $1,589 AUD|High: $8,413 AUD|Avg: $3,970 AUD
Rare Carat
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$1,589 AUD
Retailer 2$2,416 AUD
Rare Carat$8,413 AUD

26 data points across 3 retailers

3 retailers$1,589 AUD to $2,416 AUD

A
Cheapest Retailer
-
$1,589 AUD
$1,116 USD
Final sale: no returns
A
Retailer 2
-
$2,416 AUD
£1,336 GBP
View
Most Expensive
Rare Carat
839621902 · Oct 19
$8,413 AUD
$5,910 USD
View
Price last confirmed 12 days ago
2 more retailers have this diamond
Prices start from $1,589 AUDSave up to $827 AUD

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
$1,589 AUD