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Cushion|Natural|GIA

1.21ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 2136639963

Certificate GIA 2136639963

Diamond specifications and retailer prices

From $1,928 SGD
$1,508 USD
As of October 31, 2026
Save $194 SGD (9%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,122 SGD at Jared · As of October 30, 2026
View at Jared

About this 1.21ct natural cushion diamond

This 1.21ct 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 2136639963. Listed at 4 retailers as of October 30, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.21
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2136639963
Dimensions6.21 × 5.91 × 3.90 mm
L/W Ratio1.05
Girdle conditionFaceted
Top View
6.21 mm5.91 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2136639963
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,122 SGD|Low: $1,928 SGD|High: $3,183 SGD|Avg: $2,495 SGD|-21.7%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 15, 2026
Retailer 3$1,928 SGD
Retailer 2$2,058 SGD
Retailer 4$2,058 SGD
Jared$2,122 SGD
Retailer 5$3,183 SGD

3 data points across 5 retailers

4 retailers$1,928 SGD to $2,122 SGD

A
Cheapest Retailer
-
$1,928 SGD
$1,508 USD
B+
Retailer 2
-
$2,058 SGD
$1,610 USD
View
B+
Retailer 3
-
$2,058 SGD
$1,610 USD
View
Most Expensive
B+
Jared
152410269 · Oct 30
$2,122 SGD
$1,660 USD
View
3 more retailers have this diamond
Prices start from $1,928 SGDSave up to $194 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
1.21ct Cushion
$1,928 SGD