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Cushion|Lab Grown|IGI

4.31ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG811634633

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG811634633

Diamond specifications and retailer prices

From $4,105 USD
As of November 2, 2026
Save $21,895 USD (84%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $26,000 USD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 4.31ct lab-grown cushion diamond

This 4.31ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811634633 or 811634633. Listed at 8 retailers as of November 2, 2026, with prices from $4,105 to $26,000, a $21,895 spread on the same certified stone. Do Amore Diamonds lists it at $26,000. 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

4.31
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811634633
Dimensions9.49 × 9.47 × 6.20 mm
L/W Ratio1.00
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
9.49 mm9.47 mm4.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811634633
Side View
Table 60.0%Crown 33.2°Girdle: STK-VTKPavilion 38.8°Culet: NoneDepth 65.5%

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: Nov 2
Current: $26,000 USD|Low: $4,105 USD|High: $33,190 USD|Avg: $13,651 USD|-21.7%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5$4,105 USD
Retailer 8$4,445 USD
Retailer 7$4,847 USD
Retailer 4$6,793 USD
Retailer 2$8,303 USD
Retailer 3$10,018 USD
Retailer 6$13,360 USD
Retailer 10$13,924 USD
Retailer 9$25,992 USD
Do Amore Diamonds$26,000 USD

28 data points across 10 retailers

8 retailers$4,105 USD to $26,000 USD

A
Cheapest Retailer
-
$4,105 USD
A
Retailer 2
-
$4,445 USD
View
A
Retailer 3
-
$4,847 USD
View
A
Retailer 4
-
$6,793 USD
View
A
Retailer 5
-
$8,303 USD
€7,908 EUR
View
B+
Retailer 6
-
$10,018 USD
£7,888 GBP
View
B+
Retailer 7
-
$13,360 USD
View
Most Expensive
B
Do Amore Diamonds
27-1F3825F17 · Nov 2
$26,000 USD
View
7 more retailers have this diamond
Prices start from $4,105 USDSave up to $21,895 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
4.31ct Cushion
$4,105 USD