Cushion|Lab Grown|IGI

1.31ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846663203

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846663203

Diamond specifications and retailer prices

From $526 USD
£414 GBP
As of October 30, 2026
Save $2,034 USD (79%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,560 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.31ct lab-grown cushion diamond

This 1.31ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663203 or 846663203. Listed at 8 retailers as of October 30, 2026, with prices from $526 to $2,560, a $2,034 spread on the same certified stone. Brilliant Earth lists it at $2,560. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663203
Dimensions8.15 × 5.36 × 3.75 mm
L/W Ratio1.52
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
8.15 mm5.36 mm1.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663203
Side View
Table 58.0%Crown 31°Girdle: STK-THKPavilion 36.9°Culet: NoneDepth 70.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,560 USD|Low: $526 USD|High: $2,560 USD|Avg: $1,189 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4$526 USD
Retailer 8$705 USD
Retailer 3$806 USD
Retailer 2$971 USD
Retailer 6$992 USD
Retailer 5$1,769 USD
Retailer 7$2,084 USD
Brilliant Earth$2,560 USD

6 data points across 8 retailers

8 retailers$526 USD to $2,560 USD

A
Cheapest Retailer
-
$526 USD
£414 GBP
A
Retailer 2
-
$705 USD
View
A
Retailer 3
-
$806 USD
View
A
Retailer 4
-
$971 USD
View
A
Retailer 5
-
$992 USD
€945 EUR
View
B+
Retailer 6
-
$1,769 USD
View
B
Retailer 7
-
$2,084 USD
£1,641 GBP
View
Most Expensive
B
Brilliant Earth
22305438A · Oct 30
$2,560 USD
View
7 more retailers have this diamond
Prices start from $526 USDSave up to $2,034 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
1.31ct Cushion
$526 USD