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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 €1,501 EUR
HK$13,100 HKD
As of October 31, 2026
Save €2,042 EUR (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €3,543 EUR 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 October 31, 2026, with prices from €1,501 to €3,543, a €2,042 spread on the same certified stone. MOH London lists it at €3,543. 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: €3,543 EUR|Low: €1,489 EUR|High: €3,582 EUR|Avg: €2,134 EUR|-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€1,501 EUR
Retailer 12€1,828 EUR
Retailer 11€1,867 EUR
Retailer 13€1,922 EUR
Retailer 6€1,950 EUR
Retailer 10€2,023 EUR
Retailer 2€2,027 EUR
Retailer 3€2,106 EUR
Retailer 4€2,121 EUR
Retailer 14€2,147 EUR
Retailer 7€2,220 EUR
Retailer 5€2,438 EUR
Retailer 9€2,526 EUR
MOH London€3,543 EUR

25 data points across 14 retailers

13 retailers€1,501 EUR to €3,543 EUR

A
Cheapest Retailer
-
€1,501 EUR
HK$13,100 HKD
B+
Retailer 2
-
€1,828 EUR
$2,042 USD
View
B+
Retailer 3
-
€1,867 EUR
$2,086 USD
View
Final sale: no returns
B+
Retailer 4
-
€1,922 EUR
$2,147 USD
View
B
Retailer 5
-
€2,023 EUR
$2,260 USD
View
B+
Retailer 6
-
€2,027 EUR
£1,783 GBP
View
B
Retailer 7
-
€2,091 EUR
SGD 3,157 SGD
View
B
Retailer 8
-
€2,106 EUR
$2,353 USD
View
B
Retailer 9
-
€2,121 EUR
$2,370 USD
View
B
Retailer 10
-
€2,147 EUR
$2,399 USD
View
B
Retailer 11
-
€2,220 EUR
£1,953 GBP
View
B
Retailer 12
-
€2,526 EUR
View
Most Expensive
B
MOH London
34C784D58 · Nov 1
€3,543 EUR
£3,117 GBP
View
12 more retailers have this diamond
Prices start from €1,501 EURSave up to €2,042 EUR

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
€1,501 EUR