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Radiant|Lab Grown|IGI

6.63ct D VVS2 Radiant Lab Grown Diamond

ID • D/VVS2 • IGI LG840639638

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

Certificate IGI LG840639638

Diamond specifications and retailer prices

From $4,081 AUD
$2,867 USD
As of October 31, 2026
Save $12,503 AUD (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $16,585 AUD 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 D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840639638 or 840639638. Listed at 16 retailers as of October 31, 2026, with prices from $4,081 to $16,585, a $12,503 spread on the same certified stone. Brilliant Earth lists it at $16,585. 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
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840639638
Dimensions13.20 × 9.07 × 6.10 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.20 mm9.07 mm6.63 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840639638
Side View
Table 65.0%Crown 44.4°Girdle: Slightly ThickPavilion 34.2°Culet: NoneDepth 67.3%

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: $16,585 AUD|Low: $4,081 AUD|High: $25,639 AUD|Avg: $9,127 AUD|-35.3%
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
October 31, 2026
Retailer 7$4,081 AUD
Retailer 12$4,389 AUD
Retailer 3$4,456 AUD
Retailer 11$5,708 AUD
Retailer 15$6,039 AUD
Retailer 16$6,203 AUD
Retailer 10$6,392 AUD
Retailer 4$7,418 AUD
Retailer 6$7,845 AUD
Retailer 5$8,027 AUD
Retailer 13$8,180 AUD
Retailer 9$9,334 AUD
Retailer 2$11,286 AUD
Retailer 14$11,378 AUD
Retailer 8$14,745 AUD
Brilliant Earth$16,585 AUD

27 data points across 16 retailers

16 retailers$4,081 AUD to $16,585 AUD

A
Cheapest Retailer
-
$4,081 AUD
$2,867 USD
Final sale: no returns
A
Retailer 2
-
$4,389 AUD
£2,427 GBP
View
A
Retailer 3
-
$4,456 AUD
$3,130 USD
View
B+
Retailer 4
-
$5,708 AUD
£3,157 GBP
View
B+
Retailer 5
-
$6,039 AUD
$4,242 USD
View
B+
Retailer 6
-
$6,203 AUD
$4,357 USD
View
B+
Retailer 7
-
$6,392 AUD
€4,276 EUR
View
B+
Retailer 8
-
$7,418 AUD
$5,211 USD
View
Retailer 9
-
$7,845 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$8,027 AUD
£4,440 GBP
View
B+
Retailer 11
-
$8,180 AUD
ZAR 92,822 ZAR
View
B+
Retailer 12
-
$9,334 AUD
View
B
Retailer 13
-
$11,286 AUD
$7,928 USD
View
B
Retailer 14
-
$11,378 AUD
£6,293 GBP
View
B
Retailer 15
-
$14,745 AUD
$10,358 USD
View
Most Expensive
B
Brilliant Earth
21675069A · Oct 31
$16,585 AUD
$11,650 USD
View
15 more retailers have this diamond
Prices start from $4,081 AUDSave up to $12,503 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
6.63ct Radiant
$4,081 AUD