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Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 7558661636

Certificate GIA 7558661636

Diamond specifications and retailer prices

From $1,148 SGD
As of November 6, 2026
Save $1,690 SGD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,839 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 J 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 7558661636. Listed at 14 retailers as of November 4, 2026, with prices from $1,148 to $2,839, a $1,690 spread on the same certified stone. MOH London lists it at $2,839. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558661636
Dimensions5.61 × 5.29 × 3.91 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Pinpoint
Top View
5.61 mm5.29 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558661636
Side View
Table 63.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 73.9%

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: $2,839 SGD|Low: $1,156 SGD|High: $2,873 SGD|Avg: $1,806 SGD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$1,156 SGD
Retailer 11$1,433 SGD
Retailer 9$1,493 SGD
Retailer 10$1,553 SGD
Retailer 8$1,567 SGD
Retailer 5$1,605 SGD
Retailer 6$1,744 SGD
Retailer 7$1,895 SGD
Retailer 3$2,031 SGD
Retailer 4$2,159 SGD
MOH London$2,839 SGD

35 data points across 11 retailers

14 retailers$1,148 SGD to $2,839 SGD

A
Cheapest Retailer
-
$1,148 SGD
A
Retailer 2
-
$1,156 SGD
View
A
Retailer 3
-
$1,433 SGD
View
Final sale: no returns
B+
Retailer 4
-
$1,488 SGD
View
A
Retailer 5
-
$1,493 SGD
View
Retailer 6
-
$1,553 SGD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$1,567 SGD
View
B+
Retailer 8
-
$1,605 SGD
View
B+
Retailer 9
-
$1,725 SGD
View
B+
Retailer 10
-
$1,744 SGD
View
B+
Retailer 11
-
$1,895 SGD
View
Retailer 12
-
$2,031 SGD
View
Price last confirmed 34 days ago
B+
Retailer 13
-
$2,159 SGD
View
Most Expensive
B
MOH London
73F05D08F · Nov 4
$2,839 SGD
£1,744 GBP
View
13 more retailers have this diamond
Prices start from $1,148 SGDSave up to $1,690 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
$1,148 SGD