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Cushion|Lab Grown|IGI

5.31ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780662902

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780662902

Diamond specifications and retailer prices

From $7,711 USD
As of October 30, 2026
Save $23,004 USD (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $30,715 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.31ct lab-grown cushion diamond

This 5.31ct lab-grown cushion 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 LG780662902 or 780662902. Listed at 14 retailers as of October 30, 2026, with prices from $7,711 to $30,715, a $23,004 spread on the same certified stone. Taylor and Hart lists it at $30,715. 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

5.31
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662902
Dimensions11.84 × 9.29 × 6.05 mm
L/W Ratio1.27
Girdle conditionFaceted
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
11.84 mm9.29 mm5.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662902
Side View
Table 61.0%Crown 36.4°Girdle: MED-THKPavilion 35.8°Culet: NoneDepth 65.1%

Caratlytics Score

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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: $11,512 USD|Low: $7,711 USD|High: $32,009 USD|Avg: $17,445 USD|-17.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
October 31, 2026
Retailer 8$7,711 USD
Retailer 7$8,243 USD
Retailer 4$10,223 USD
Retailer 3$10,390 USD
Retailer 12$10,470 USD
Retailer 1$11,512 USD
Retailer 9$15,819 USD
Retailer 13$16,100 USD
Retailer 10$16,710 USD
Retailer 2$17,840 USD
Retailer 11$19,395 USD
Retailer 6$23,764 USD
Retailer 5$26,869 USD
Taylor and Hart$30,715 USD

40 data points across 14 retailers

14 retailers$7,711 USD to $30,715 USD

A
Cheapest Retailer
-
$7,711 USD
A
Retailer 2
-
$8,243 USD
View
A
Retailer 3
-
$10,223 USD
View
Retailer 4
-
$10,390 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$10,470 USD
HK$81,800 HKD
View
A
Retailer 6
-
$11,512 USD
£9,064 GBP
View
A
Retailer 7
-
$15,819 USD
View
A
Retailer 8
-
$16,100 USD
€15,333 EUR
View
B+
Retailer 9
-
$16,710 USD
View
B+
Retailer 10
-
$17,840 USD
£14,047 GBP
View
B+
Retailer 11
-
$19,395 USD
ZAR 313,328 ZAR
View
B+
Retailer 12
-
$23,764 USD
View
B
Retailer 13
-
$26,869 USD
View
Most Expensive
B
Taylor and Hart
J1NOSVH · Oct 30
$30,715 USD
View
13 more retailers have this diamond
Prices start from $7,711 USDSave up to $23,004 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
5.31ct Cushion
$7,711 USD