Radiant|Lab Grown|IGI

6.63ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG591346732

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

Certificate IGI LG591346732

Diamond specifications and retailer prices

From $939 USD
As of October 29, 2026
Save $4,811 USD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,750 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 6.63ct lab-grown radiant diamond

This 6.63ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG591346732 or 591346732. Listed at 19 retailers as of October 29, 2026, with prices from $939 to $5,750, a $4,811 spread on the same certified stone. Brilliant Earth lists it at $5,750. 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

6.63
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591346732
Dimensions13.38 × 9.17 × 6.22 mm
L/W Ratio1.46
Culet sizePointed
Top View
13.38 mm9.17 mm6.63 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591346732
Side View
Table 65.0%Crown 43.3°Girdle: MediumPavilion 35.7°Culet: NoneDepth 67.8%

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 29
Current: $5,750 USD|Low: $927 USD|High: $5,750 USD|Avg: $2,306 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 15$939 USD
Retailer 9$1,114 USD
Retailer 12$1,150 USD
Retailer 2$1,482 USD
Retailer 3$1,484 USD
Retailer 6$1,566 USD
Retailer 14$1,685 USD
Retailer 10$1,802 USD
Retailer 11$1,882 USD
Retailer 16$2,236 USD
Retailer 17$2,652 USD
Retailer 4$3,044 USD
Retailer 7$3,078 USD
Retailer 5$3,371 USD
Retailer 8$3,451 USD
Retailer 13$3,651 USD
Brilliant Earth$5,750 USD

38 data points across 17 retailers

19 retailers$939 USD to $5,750 USD

Retailer 1
-
$901 USD
Price last confirmed 33 days ago
A
Retailer 2
-
$939 USD
View
Final sale: no returns
Retailer 3
-
$948 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$1,114 USD
View
Price last confirmed 20 days ago
A
Retailer 5
-
$1,150 USD
View
A
Retailer 6
-
$1,482 USD
£1,167 GBP
View
A
Retailer 7
-
$1,484 USD
View
B+
Retailer 8
-
$1,566 USD
View
Retailer 9
-
$1,685 USD
€1,605 EUR
View
Price last confirmed 7 days ago
A
Retailer 10
-
$1,802 USD
A$2,773 AUD
View
A
Retailer 11
-
$1,882 USD
ZAR 30,407 ZAR
View
A
Retailer 12
-
$2,236 USD
View
B+
Retailer 13
-
$2,652 USD
View
B+
Retailer 14
-
$3,044 USD
View
Retailer 15
-
$3,078 USD
£2,424 GBP
View
Price last confirmed 19 days ago
B+
Retailer 16
-
$3,371 USD
View
Retailer 17
-
$3,451 USD
View
Price last confirmed 20 days ago
B+
Retailer 18
-
$3,651 USD
£2,875 GBP
View
Most Expensive
B
Brilliant Earth
7752978A · Oct 29
$5,750 USD
View
18 more retailers have this diamond
Prices start from $939 USDSave up to $4,811 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
6.63ct Radiant
$939 USD