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Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 3435760109

Certificate GIA 3435760109

Diamond specifications and retailer prices

From $1,796 SGD
As of November 6, 2026
Save $1,955 SGD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,750 SGD at MOH London · As of November 4, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3435760109. Listed at 14 retailers as of November 4, 2026, with prices from $1,796 to $3,750, a $1,955 spread on the same certified stone. MOH London lists it at $3,750. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3435760109
Dimensions5.81 × 5.71 × 4.00 mm
L/W Ratio1.02
Top View
5.81 mm5.71 mm1.21 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3435760109
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.1%

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 6
Current: $3,750 SGD|Low: $1,796 SGD|High: $3,805 SGD|Avg: $2,494 SGD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$1,796 SGD
Retailer 5$1,807 SGD
Retailer 2$2,081 SGD
Retailer 3$2,381 SGD
Retailer 4$2,620 SGD
Retailer 7$2,800 SGD
MOH London$3,750 SGD

40 data points across 7 retailers

14 retailers$1,796 SGD to $3,750 SGD

A
Cheapest Retailer
-
$1,796 SGD
Final sale: no returns
A
Retailer 2
-
$1,803 SGD
View
A
Retailer 3
-
$1,807 SGD
View
B+
Retailer 4
-
$2,053 SGD
View
B+
Retailer 5
-
$2,057 SGD
View
A
Retailer 6
-
$2,081 SGD
View
B+
Retailer 7
-
$2,163 SGD
View
B+
Retailer 8
-
$2,294 SGD
View
B+
Retailer 9
-
$2,294 SGD
View
B+
Retailer 10
-
$2,371 SGD
View
B+
Retailer 11
-
$2,381 SGD
View
B+
Retailer 12
-
$2,620 SGD
View
Retailer 13
-
$2,800 SGD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
8D42DC9CD · Nov 4
$3,750 SGD
£2,304 GBP
View
13 more retailers have this diamond
Prices start from $1,796 SGDSave up to $1,955 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
$1,796 SGD