Radiant|Lab Grown|IGI

6.65ct D VVS2 Radiant Lab Grown Diamond

EX • D/VVS2 • IGI LG764608550

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

Certificate IGI LG764608550

Diamond specifications and retailer prices

From $2,580 USD
As of October 23, 2026
Save $15,490 USD (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $18,070 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 6.65ct lab-grown radiant diamond

This 6.65ct 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 LG764608550 or 764608550. Listed at 16 retailers as of October 23, 2026, with prices from $2,580 to $18,070, a $15,490 spread on the same certified stone. Brilliant Earth lists it at $18,070. 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

6.65
Carat
D
Color
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG764608550
Dimensions13.42 × 13.42 × 9.19 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.42 mm13.42 mm6.65 ctD / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG764608550
Side View
Table 67.0%Crown 43.7°Girdle: Slightly ThickPavilion 34.2°Culet: NoneDepth 65.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 23
Current: $18,070 USD|Low: $3,073 USD|High: $18,880 USD|Avg: $7,293 USD|-3.0%
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 30, 2026
Retailer 6$3,073 USD
Retailer 14$3,155 USD
Retailer 2$3,431 USD
Retailer 15$3,891 USD
Retailer 4$4,062 USD
Retailer 12$4,392 USD
Retailer 16$4,662 USD
Retailer 7$5,700 USD
Retailer 8$6,114 USD
Retailer 10$6,132 USD
Retailer 11$6,345 USD
Retailer 5$7,000 USD
Retailer 9$8,419 USD
Retailer 13$11,249 USD
Retailer 3$17,750 USD
Brilliant Earth$18,070 USD

35 data points across 16 retailers

16 retailers$2,580 USD to $18,070 USD

A
Cheapest Retailer
-
$2,580 USD
A
Retailer 2
-
$2,807 USD
View
A
Retailer 3
-
$3,155 USD
View
A
Retailer 4
-
$3,431 USD
£2,701 GBP
View
B+
Retailer 5
-
$3,891 USD
HK$30,400 HKD
View
B+
Retailer 6
-
$4,062 USD
View
B+
Retailer 7
-
$4,392 USD
View
B+
Retailer 8
-
$4,541 USD
View
Retailer 9
-
$4,662 USD
View
Price last confirmed 7 days ago
Retailer 10
-
$6,132 USD
A$9,434 AUD
View
Price last confirmed 7 days ago
Retailer 11
-
$6,345 USD
View
Price last confirmed 11 days ago
Retailer 12
-
$7,000 USD
A$10,769 AUD
View
Price last confirmed 21 days ago
B+
Retailer 13
-
$8,419 USD
£6,629 GBP
View
B
Retailer 14
-
$11,249 USD
SGD 15,201 SGD
View
B
Retailer 15
-
$17,750 USD
View
Most Expensive
B
Brilliant Earth
17528800Y · Oct 29
$18,070 USD
View
15 more retailers have this diamond
Prices start from $2,580 USDSave up to $15,490 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
6.65ct Radiant
$2,580 USD