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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 $1,666 NZD
$939 USD
As of October 31, 2026
Save $8,536 NZD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,202 NZD at Brilliant Earth · As of October 31, 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 31, 2026, with prices from $1,666 to $10,202, a $8,536 spread on the same certified stone. Brilliant Earth lists it at $10,202. 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
Colour
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 31
Current: $10,202 NZD|Low: $1,645 NZD|High: $10,202 NZD|Avg: $4,104 NZD
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
November 1, 2026
Retailer 15$1,666 NZD
Retailer 9$1,977 NZD
Retailer 14$2,040 NZD
Retailer 10$2,630 NZD
Retailer 3$2,633 NZD
Retailer 6$2,779 NZD
Retailer 11$2,839 NZD
Retailer 12$3,198 NZD
Retailer 13$3,340 NZD
Retailer 16$3,967 NZD
Retailer 17$4,705 NZD
Retailer 4$5,401 NZD
Retailer 7$5,462 NZD
Retailer 5$5,980 NZD
Retailer 8$6,123 NZD
Retailer 2$6,469 NZD
Brilliant Earth$10,202 NZD

38 data points across 17 retailers

19 retailers$1,666 NZD to $10,202 NZD

Retailer 1
-
$1,599 NZD
$901 USD
Price last confirmed 35 days ago
A
Retailer 2
-
$1,666 NZD
$939 USD
View
Final sale: no returns
Retailer 3
-
$1,682 NZD
$948 USD
View
Price last confirmed 35 days ago
Retailer 4
-
$1,977 NZD
$1,114 USD
View
Price last confirmed 21 days ago
A
Retailer 5
-
$2,040 NZD
$1,150 USD
View
A
Retailer 6
-
$2,630 NZD
£1,167 GBP
View
A
Retailer 7
-
$2,633 NZD
$1,484 USD
View
B+
Retailer 8
-
$2,779 NZD
$1,566 USD
View
A
Retailer 9
-
$2,839 NZD
€1,524 EUR
View
A
Retailer 10
-
$3,198 NZD
A$2,773 AUD
View
A
Retailer 11
-
$3,340 NZD
ZAR 30,407 ZAR
View
A
Retailer 12
-
$3,967 NZD
$2,236 USD
View
B+
Retailer 13
-
$4,705 NZD
$2,652 USD
View
B+
Retailer 14
-
$5,401 NZD
$3,044 USD
View
Retailer 15
-
$5,462 NZD
£2,424 GBP
View
Price last confirmed 21 days ago
B+
Retailer 16
-
$5,980 NZD
$3,371 USD
View
Retailer 17
-
$6,123 NZD
$3,451 USD
View
Price last confirmed 21 days ago
B+
Retailer 18
-
$6,469 NZD
£2,871 GBP
View
Most Expensive
B
Brilliant Earth
7752978A · Oct 31
$10,202 NZD
$5,750 USD
View
18 more retailers have this diamond
Prices start from $1,666 NZDSave up to $8,536 NZD

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
$1,666 NZD