Cushion|Lab Grown|IGI

1.51ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG836620262

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836620262

Diamond specifications and retailer prices

From $765 USD
As of October 31, 2026
Save $2,855 USD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,620 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836620262 or 836620262. Listed at 14 retailers as of October 31, 2026, with prices from $765 to $3,620, a $2,855 spread on the same certified stone. Brilliant Earth lists it at $3,620. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620262
Dimensions8.19 × 5.91 × 3.94 mm
L/W Ratio1.39
Girdle conditionFaceted
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
8.19 mm5.91 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620262
Side View
Table 62.0%Crown 35.6°Girdle: MED-THKPavilion 35.5°Culet: NoneDepth 66.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $3,620 USD|Low: $720 USD|High: $4,980 USD|Avg: $2,001 USD|-27.3%
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
November 1, 2026
Retailer 9$765 USD
Retailer 8$936 USD
Retailer 13$971 USD
Retailer 7$1,041 USD
Retailer 10$1,075 USD
Retailer 11$1,079 USD
Retailer 3$1,457 USD
Retailer 6$1,996 USD
Retailer 4$2,036 USD
Retailer 12$2,036 USD
Retailer 14$2,195 USD
Retailer 2$2,611 USD
Retailer 5$2,675 USD
Brilliant Earth$3,620 USD

34 data points across 14 retailers

14 retailers$765 USD to $3,620 USD

A
Cheapest Retailer
-
$765 USD
A
Retailer 2
-
$936 USD
€891 EUR
View
A
Retailer 3
-
$971 USD
View
A
Retailer 4
-
$1,041 USD
£820 GBP
View
A
Retailer 5
-
$1,075 USD
ZAR 17,364 ZAR
View
A
Retailer 6
-
$1,079 USD
View
A
Retailer 7
-
$1,457 USD
View
Retailer 8
-
$1,996 USD
£1,572 GBP
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$2,036 USD
SGD 2,751 SGD
View
B+
Retailer 10
-
$2,036 USD
View
B+
Retailer 11
-
$2,195 USD
View
B+
Retailer 12
-
$2,611 USD
£2,056 GBP
View
Retailer 13
-
$2,675 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21433420A · Oct 31
$3,620 USD
View
13 more retailers have this diamond
Prices start from $765 USDSave up to $2,855 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
1.51ct Cushion
$765 USD