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Cushion|Lab Grown|GIA

5.12ct D IF Cushion Lab Grown Diamond

ID • D/IF • GIA 1515340665

Certificate GIA 1515340665

Diamond specifications and retailer prices

From $16,732 USD
As of October 31, 2026
Save $12,635 USD (43%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $29,367 USD at MOH London · As of November 1, 2026
View at MOH London

About this 5.12ct lab-grown cushion diamond

This 5.12ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1515340665. Listed at 4 retailers as of October 31, 2026, with prices from $16,732 to $29,367, a $12,635 spread on the same certified stone. MOH London lists it at $29,367. 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

5.12
Carat
D
Color
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1515340665
Dimensions11.09 × 9.18 × 6.50 mm
L/W Ratio1.21
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Minor Details of Polish
Top View
11.09 mm9.18 mm5.12 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1515340665
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $29,367 USD|Low: $15,217 USD|High: $66,800 USD|Avg: $29,795 USD|-2.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 5$15,217 USD
Retailer 4$16,732 USD
Retailer 6$23,859 USD
Retailer 3$25,940 USD
MOH London$29,367 USD
Retailer 2$65,420 USD

15 data points across 6 retailers

4 retailers$16,732 USD to $29,367 USD

B+
Cheapest Retailer
-
$16,732 USD
Final sale: no returns
B+
Retailer 2
-
$25,940 USD
View
Most Expensive
B+
MOH London
1515340665 · Nov 1
$29,367 USD
£23,124 GBP
View
2 more retailers have this diamond
Prices start from $16,732 USDSave up to $12,635 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+
5.12ct Cushion
$16,732 USD