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Cushion|Natural|GIA

1.23ct J SI2 Cushion Natural Diamond

ID • J/SI2 • GIA 6365299976

Certificate GIA 6365299976

Diamond specifications and retailer prices

From $2,144 SGD
HK$13,100 HKD
As of November 1, 2026
Save $2,917 SGD (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,061 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.23ct natural cushion diamond

This 1.23ct natural cushion sits in the classic one-carat band, graded J 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 6365299976. Listed at 13 retailers as of November 1, 2026, with prices from $2,144 to $5,061, a $2,917 spread on the same certified stone. MOH London lists it at $5,061. 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

1.23
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6365299976
Dimensions6.55 × 5.49 × 3.91 mm
L/W Ratio1.19
Top View
6.55 mm5.49 mm1.23 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6365299976
Side View
Table 60.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 71.2%

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 1
Current: $5,061 SGD|Low: $2,127 SGD|High: $5,116 SGD|Avg: $3,048 SGD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 8$2,144 SGD
Retailer 12$2,610 SGD
Retailer 11$2,667 SGD
Retailer 13$2,745 SGD
Retailer 6$2,786 SGD
Retailer 10$2,889 SGD
Retailer 2$2,895 SGD
Retailer 3$3,008 SGD
Retailer 4$3,030 SGD
Retailer 14$3,067 SGD
Retailer 7$3,170 SGD
Retailer 5$3,482 SGD
Retailer 9$3,608 SGD
MOH London$5,061 SGD

25 data points across 14 retailers

13 retailers$2,144 SGD to $5,061 SGD

A
Cheapest Retailer
-
$2,144 SGD
HK$13,100 HKD
B+
Retailer 2
-
$2,610 SGD
$2,042 USD
View
B+
Retailer 3
-
$2,667 SGD
$2,086 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,745 SGD
$2,147 USD
View
B
Retailer 5
-
$2,889 SGD
$2,260 USD
View
B+
Retailer 6
-
$2,895 SGD
£1,783 GBP
View
B
Retailer 7
-
$2,987 SGD
View
B
Retailer 8
-
$3,008 SGD
$2,353 USD
View
B
Retailer 9
-
$3,030 SGD
$2,370 USD
View
B
Retailer 10
-
$3,067 SGD
$2,399 USD
View
B
Retailer 11
-
$3,170 SGD
£1,953 GBP
View
B
Retailer 12
-
$3,608 SGD
€2,688 EUR
View
Most Expensive
B
MOH London
34C784D58 · Nov 1
$5,061 SGD
£3,117 GBP
View
12 more retailers have this diamond
Prices start from $2,144 SGDSave up to $2,917 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
1.23ct Cushion
$2,144 SGD