Radiant|Lab Grown|IGI

6.66ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG762546282

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

Certificate IGI LG762546282

Diamond specifications and retailer prices

From $27,980 USD
As of November 1, 2026
Save $24,290 USD (46%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $52,270 USD at Brilliance · As of November 1, 2026
View at Brilliance

About this 6.66ct lab-grown radiant diamond

This 6.66ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG762546282 or 762546282. Listed at 11 retailers as of November 1, 2026, with prices from $27,980 to $52,270, a $24,290 spread on the same certified stone. Brilliance lists it at $52,270. 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

6.66
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762546282
Dimensions13.34 × 9.47 × 6.19 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
13.34 mm9.47 mm6.66 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762546282
Side View
Table 63.0%Crown 41.6°Girdle: MED-STKPavilion 33°Culet: NoneDepth 65.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $52,270 USD|Low: $26,420 USD|High: $117,216 USD|Avg: $51,284 USD|-8.5%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 8$27,980 USD
Retailer 3$29,059 USD
Retailer 4$32,320 USD
Retailer 10$33,882 USD
Retailer 12$37,050 USD
Retailer 13$37,962 USD
Retailer 9$40,670 USD
Retailer 7$44,950 USD
Retailer 2$52,146 USD
Brilliance$52,270 USD
Retailer 6$71,292 USD
Retailer 5$87,795 USD
Retailer 11$117,216 USD

26 data points across 13 retailers

11 retailers$27,980 USD to $52,270 USD

B+
Cheapest Retailer
-
$27,980 USD
B+
Retailer 2
-
$33,882 USD
View
B+
Retailer 3
-
$37,050 USD
View
B+
Retailer 4
-
$37,962 USD
View
B+
Retailer 5
-
$40,670 USD
View
Retailer 6
-
$44,950 USD
£35,394 GBP
View
Price last confirmed 9 days ago
B
Retailer 7
-
$52,146 USD
£41,060 GBP
View
Most Expensive
B
Brilliance
D42106933 · Nov 1
$52,270 USD
View
7 more retailers have this diamond
Prices start from $27,980 USDSave up to $24,290 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.

B+
6.66ct Radiant
$27,980 USD