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Cushion|Lab Grown|GIA

3.09ct H SI1 Cushion Lab Grown Diamond

EX • H/SI1 • GIA 6425401098

Certificate GIA 6425401098

Diamond specifications and retailer prices

From $1,512 SGD
As of November 5, 2026
Save $3,302 SGD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,815 SGD at MOH London · As of November 5, 2026
View at MOH London

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6425401098. Listed at 10 retailers as of November 5, 2026, with prices from $1,512 to $4,815, a $3,302 spread on the same certified stone. MOH London lists it at $4,815. 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

3.09
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6425401098
Dimensions8.61 × 8.42 × 5.57 mm
L/W Ratio1.02
Top View
8.61 mm8.42 mm3.09 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6425401098
Side View
Table 63.0%CrownGirdle: STK-NULPavilionCulet: NoneDepth 66.2%

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 5
Current: $4,815 SGD|Low: $1,288 SGD|High: $4,893 SGD|Avg: $2,359 SGD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$1,288 SGD
Retailer 5$1,512 SGD
Retailer 9$1,621 SGD
Retailer 10$1,887 SGD
Retailer 2$1,988 SGD
Retailer 7$2,070 SGD
Retailer 4$2,172 SGD
Retailer 3$2,690 SGD
Retailer 6$3,191 SGD
MOH London$4,815 SGD

30 data points across 10 retailers

10 retailers$1,512 SGD to $4,815 SGD

Retailer 1
-
$1,288 SGD
Price last confirmed 25 days ago
A
Retailer 2
-
$1,512 SGD
View
A
Retailer 3
-
$1,621 SGD
View
Final sale: no returns
B+
Retailer 4
-
$1,887 SGD
View
B+
Retailer 5
-
$1,988 SGD
View
B+
Retailer 6
-
$2,070 SGD
View
B+
Retailer 7
-
$2,172 SGD
View
B+
Retailer 8
-
$2,690 SGD
View
B
Retailer 9
-
$3,191 SGD
View
Most Expensive
B
MOH London
6425401098 · Nov 5
$4,815 SGD
£2,958 GBP
View
9 more retailers have this diamond
Prices start from $1,512 SGDSave up to $3,302 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
3.09ct Cushion
$1,512 SGD