Radiant|Lab Grown|IGI

6.30ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG831655372

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

Certificate IGI LG831655372

Diamond specifications and retailer prices

From $2,138 USD
As of October 30, 2026
Save $6,213 USD (74%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,351 USD at With Clarity · As of October 31, 2026
View at With Clarity

About this 6.3ct lab-grown radiant diamond

This 6.3ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831655372 or 831655372. Listed at 11 retailers as of October 30, 2026, with prices from $2,138 to $8,351, a $6,213 spread on the same certified stone. With Clarity lists it at $8,351. 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

6.30
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831655372
Dimensions12.83 × 8.59 × 6.41 mm
L/W Ratio1.49
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.83 mm8.59 mm6.30 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831655372
Side View
Table 68.0%Crown 49.5°Girdle: ThickPavilion 40.9°Culet: NoneDepth 74.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,305 USD|Low: $2,054 USD|High: $15,430 USD|Avg: $5,444 USD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
October 31, 2026
Retailer 10$2,138 USD
Retailer 5$2,429 USD
Retailer 7$2,711 USD
Retailer 3$3,043 USD
Retailer 9$3,733 USD
Retailer 6$4,939 USD
Retailer 1$5,305 USD
Retailer 2$6,050 USD
Retailer 8$6,080 USD
Retailer 4$7,930 USD
With Clarity$8,184 USD

39 data points across 11 retailers

11 retailers$2,138 USD to $8,351 USD

A
Cheapest Retailer
-
$2,138 USD
A
Retailer 2
-
$2,429 USD
£1,912 GBP
View
Retailer 3
-
$2,711 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$3,043 USD
€2,898 EUR
View
B+
Retailer 5
-
$3,733 USD
View
B
Retailer 6
-
$4,939 USD
£3,889 GBP
View
B
Retailer 7
-
$5,305 USD
A$8,162 AUD
View
B
Retailer 8
-
$6,050 USD
View
Retailer 9
-
$6,080 USD
View
Price last confirmed 12 days ago
B
Retailer 10
-
$7,930 USD
View
Most Expensive
B
With Clarity
831655372 · Oct 31
$8,351 USD
View
10 more retailers have this diamond
Prices start from $2,138 USDSave up to $6,213 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
6.30ct Radiant
$2,138 USD