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Cushion|Natural|GIA

1.00ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 6425709135

Certificate GIA 6425709135

Diamond specifications and retailer prices

From $1,498 SGD
As of November 6, 2026
Save $1,542 SGD (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,040 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6425709135. Listed at 10 retailers as of November 4, 2026, with prices from $1,498 to $3,040, a $1,542 spread on the same certified stone. MOH London lists it at $3,040. 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

1.00
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6425709135
Dimensions5.48 × 5.41 × 3.74 mm
L/W Ratio1.01
Top View
5.48 mm5.41 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6425709135
Side View
Table 57.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 69.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,040 SGD|Low: $1,498 SGD|High: $3,084 SGD|Avg: $1,848 SGD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$1,498 SGD
Retailer 2$1,523 SGD
Retailer 8$1,535 SGD
Retailer 10$1,542 SGD
Retailer 3$1,637 SGD
Retailer 6$1,665 SGD
Retailer 9$1,775 SGD
Retailer 5$1,870 SGD
Retailer 4$2,309 SGD
MOH London$3,040 SGD

29 data points across 10 retailers

10 retailers$1,498 SGD to $3,040 SGD

A
Cheapest Retailer
-
$1,498 SGD
A
Retailer 2
-
$1,523 SGD
View
A
Retailer 3
-
$1,535 SGD
View
Final sale: no returns
A
Retailer 4
-
$1,542 SGD
View
A
Retailer 5
-
$1,637 SGD
View
Retailer 6
-
$1,665 SGD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$1,775 SGD
View
A
Retailer 8
-
$1,870 SGD
View
B+
Retailer 9
-
$2,309 SGD
View
Most Expensive
B+
MOH London
F1C310B20 · Nov 4
$3,040 SGD
£1,868 GBP
View
9 more retailers have this diamond
Prices start from $1,498 SGDSave up to $1,542 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
1.00ct Cushion
$1,498 SGD