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Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 1447136627

Certificate GIA 1447136627

Diamond specifications and retailer prices

From $1,853 SGD
As of November 6, 2026
Save $1,656 SGD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,509 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1447136627. Listed at 8 retailers as of November 4, 2026, with prices from $1,853 to $3,509, a $1,656 spread on the same certified stone. MOH London lists it at $3,509. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1447136627
Dimensions6.36 × 5.71 × 3.92 mm
L/W Ratio1.11
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Knot
Top View
6.36 mm5.71 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1447136627
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,509 SGD|Low: $1,698 SGD|High: $3,561 SGD|Avg: $2,300 SGD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$1,798 SGD
Retailer 7$1,853 SGD
Retailer 10$1,871 SGD
Retailer 6$1,935 SGD
Retailer 5$2,008 SGD
Retailer 3$2,227 SGD
Retailer 4$2,450 SGD
Retailer 8$2,620 SGD
Retailer 2$2,727 SGD
MOH London$3,509 SGD

37 data points across 10 retailers

8 retailers$1,853 SGD to $3,509 SGD

B+
Cheapest Retailer
-
$1,853 SGD
Final sale: no returns
B+
Retailer 2
-
$1,935 SGD
View
Retailer 3
-
$2,008 SGD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
$2,227 SGD
View
B+
Retailer 5
-
$2,450 SGD
View
Retailer 6
-
$2,620 SGD
View
Price last confirmed 33 days ago
B
Retailer 7
-
$2,727 SGD
View
Most Expensive
B
MOH London
C2280FB64 · Nov 4
$3,509 SGD
£2,156 GBP
View
7 more retailers have this diamond
Prices start from $1,853 SGDSave up to $1,656 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.

B+
1.21ct Cushion
$1,853 SGD