Radiant|Lab Grown|IGI

6.60ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG754508564

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

Certificate IGI LG754508564

Diamond specifications and retailer prices

From $26,250 USD
As of November 1, 2026
Save $25,429 USD (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $51,679 USD at MOH London · As of November 1, 2026
View at MOH London

About this 6.6ct lab-grown radiant diamond

This 6.6ct 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 LG754508564 or 754508564. Listed at 11 retailers as of November 1, 2026, with prices from $26,250 to $51,679, a $25,429 spread on the same certified stone. MOH London lists it at $51,679. 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

6.60
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508564
Dimensions13.74 × 9.31 × 6.10 mm
L/W Ratio1.48
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
13.74 mm9.31 mm6.60 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508564
Side View
Table 64.0%Crown 42.2°Girdle: MED-STKPavilion 33.7°Culet: NoneDepth 65.5%

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: $51,679 USD|Low: $24,789 USD|High: $116,160 USD|Avg: $49,398 USD
MOH London
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 7$26,250 USD
Retailer 13$27,203 USD
Retailer 3$28,797 USD
Retailer 11$30,468 USD
Retailer 4$32,026 USD
Retailer 9$35,967 USD
Retailer 8$40,260 USD
Retailer 6$44,546 USD
Retailer 10$46,931 USD
MOH London$51,679 USD
Retailer 2$70,649 USD
Retailer 5$87,132 USD
Retailer 12$116,160 USD

29 data points across 13 retailers

11 retailers$26,250 USD to $51,679 USD

B+
Cheapest Retailer
-
$26,250 USD
B+
Retailer 2
-
$27,203 USD
View
B+
Retailer 3
-
$30,468 USD
View
B+
Retailer 4
-
$35,967 USD
View
B+
Retailer 5
-
$40,260 USD
View
Retailer 6
-
$44,546 USD
£35,075 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
$46,931 USD
View
Most Expensive
B
MOH London
LG754508564 · Nov 1
$51,679 USD
£40,692 GBP
View
7 more retailers have this diamond
Prices start from $26,250 USDSave up to $25,429 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+
6.60ct Radiant
$26,250 USD