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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 $1,677 USD
HK$13,100 HKD
As of October 31, 2026
Save $2,288 USD (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,965 USD at MOH London · As of October 26, 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 October 26, 2026, with prices from $1,677 to $3,965, a $2,288 spread on the same certified stone. MOH London lists it at $3,965. 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
Color
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: Oct 31
Current: $3,965 USD|Low: $1,664 USD|High: $4,002 USD|Avg: $2,383 USD|-0.9%
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
October 31, 2026
Retailer 2$1,677 USD
Retailer 12$2,042 USD
Retailer 11$2,086 USD
Retailer 13$2,147 USD
Retailer 6$2,179 USD
Retailer 10$2,260 USD
Retailer 9$2,271 USD
Retailer 3$2,353 USD
Retailer 4$2,370 USD
Retailer 14$2,399 USD
Retailer 8$2,480 USD
Retailer 5$2,723 USD
Retailer 7$2,822 USD
MOH London$3,965 USD

24 data points across 14 retailers

13 retailers$1,677 USD to $3,965 USD

A
Cheapest Retailer
-
$1,677 USD
HK$13,100 HKD
B+
Retailer 2
-
$2,042 USD
View
B+
Retailer 3
-
$2,086 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,147 USD
View
B
Retailer 5
-
$2,260 USD
View
B+
Retailer 6
-
$2,271 USD
£1,788 GBP
View
B
Retailer 7
-
$2,336 USD
SGD 3,157 SGD
View
B
Retailer 8
-
$2,353 USD
View
B
Retailer 9
-
$2,370 USD
View
B
Retailer 10
-
$2,399 USD
View
B
Retailer 11
-
$2,480 USD
£1,953 GBP
View
B
Retailer 12
-
$2,822 USD
€2,688 EUR
View
Most Expensive
B
MOH London
34C784D58 · Oct 26
$3,965 USD
£3,122 GBP
View
12 more retailers have this diamond
Prices start from $1,677 USDSave up to $2,288 USD

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
$1,677 USD