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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 $2,387 AUD
HK$13,100 HKD
As of November 1, 2026
Save $3,248 AUD (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,635 AUD 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 $2,387 to $5,635, a $3,248 spread on the same certified stone. MOH London lists it at $5,635. 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: $5,635 AUD|Low: $2,369 AUD|High: $5,697 AUD|Avg: $3,395 AUD|-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$2,387 AUD
Retailer 12$2,907 AUD
Retailer 11$2,970 AUD
Retailer 13$3,056 AUD
Retailer 6$3,102 AUD
Retailer 10$3,217 AUD
Retailer 2$3,223 AUD
Retailer 3$3,350 AUD
Retailer 4$3,374 AUD
Retailer 14$3,415 AUD
Retailer 7$3,530 AUD
Retailer 5$3,877 AUD
Retailer 9$4,018 AUD
MOH London$5,635 AUD

25 data points across 14 retailers

13 retailers$2,387 AUD to $5,635 AUD

A
Cheapest Retailer
-
$2,387 AUD
HK$13,100 HKD
B+
Retailer 2
-
$2,907 AUD
$2,042 USD
View
B+
Retailer 3
-
$2,970 AUD
$2,086 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,056 AUD
$2,147 USD
View
B
Retailer 5
-
$3,217 AUD
$2,260 USD
View
B+
Retailer 6
-
$3,223 AUD
£1,783 GBP
View
B
Retailer 7
-
$3,326 AUD
SGD 3,157 SGD
View
B
Retailer 8
-
$3,350 AUD
$2,353 USD
View
B
Retailer 9
-
$3,374 AUD
$2,370 USD
View
B
Retailer 10
-
$3,415 AUD
$2,399 USD
View
B
Retailer 11
-
$3,530 AUD
£1,953 GBP
View
B
Retailer 12
-
$4,018 AUD
€2,688 EUR
View
Most Expensive
B
MOH London
34C784D58 · Nov 1
$5,635 AUD
£3,117 GBP
View
12 more retailers have this diamond
Prices start from $2,387 AUDSave up to $3,248 AUD

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
$2,387 AUD