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Cushion|Lab Grown|GIA

1.29ct F SI1 Cushion Lab Grown Diamond

EX • F/SI1 • GIA 1515120078

Certificate GIA 1515120078

Diamond specifications and retailer prices

From $529 SGD
As of November 6, 2026
Save $2,007 SGD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,536 SGD at MOH London · As of November 3, 2026
View at MOH London

About this 1.29ct lab-grown cushion diamond

This 1.29ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1515120078. Listed at 10 retailers as of November 3, 2026, with prices from $529 to $2,536, a $2,007 spread on the same certified stone. MOH London lists it at $2,536. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.29
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1515120078
Dimensions7.20 × 5.59 × 3.90 mm
L/W Ratio1.29
Girdle conditionFaceted
Cert comments
This is a man-made diamond produced by CVD (Chemical Vapor Deposition) growth process and has evidence of post-growth treatments to change the color.
Key to symbols
Growth Remnant
Top View
7.20 mm5.59 mm1.29 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1515120078
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.8%

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 6
Current: $2,536 SGD|Low: $529 SGD|High: $2,565 SGD|Avg: $1,159 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 6$529 SGD
Retailer 7$782 SGD
Retailer 8$804 SGD
Retailer 4$837 SGD
Retailer 9$877 SGD
Retailer 2$962 SGD
Retailer 3$991 SGD
Retailer 5$1,957 SGD
MOH London$2,536 SGD

46 data points across 9 retailers

10 retailers$529 SGD to $2,536 SGD

A
Cheapest Retailer
-
$529 SGD
Final sale: no returns
A
Retailer 2
-
$604 SGD
View
B+
Retailer 3
-
$782 SGD
View
B+
Retailer 4
-
$804 SGD
View
B+
Retailer 5
-
$837 SGD
View
B+
Retailer 6
-
$962 SGD
View
B+
Retailer 7
-
$991 SGD
View
B
Retailer 8
-
$1,957 SGD
View
B
Retailer 9
-
$2,283 SGD
View
Most Expensive
B
MOH London
1515120078 · Nov 3
$2,536 SGD
£1,558 GBP
View
9 more retailers have this diamond
Prices start from $529 SGDSave up to $2,007 SGD

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
1.29ct Cushion
$529 SGD