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Cushion|Natural|GIA

1.21ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 1558366202

Certificate GIA 1558366202

Diamond specifications and retailer prices

From $3,182 SGD
As of November 6, 2026
Save $3,856 SGD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,038 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558366202. Listed at 17 retailers as of November 4, 2026, with prices from $3,182 to $7,038, a $3,856 spread on the same certified stone. MOH London lists it at $7,038. 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1558366202
Dimensions7.16 × 5.34 × 3.62 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural
Top View
7.16 mm5.34 mm1.21 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1558366202
Side View
Table 67.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 67.7%

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: $7,038 SGD|Low: $3,149 SGD|High: $7,407 SGD|Avg: $4,488 SGD|-5.0%
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 6, 2026
Retailer 12$3,182 SGD
Retailer 2$3,322 SGD
Retailer 5$3,804 SGD
Retailer 10$3,847 SGD
Retailer 3$3,894 SGD
Retailer 13$4,082 SGD
Retailer 14$4,220 SGD
Retailer 11$4,366 SGD
Retailer 8$4,424 SGD
Retailer 4$4,511 SGD
Retailer 6$4,678 SGD
Retailer 7$4,912 SGD
Retailer 9$5,151 SGD
MOH London$7,038 SGD

29 data points across 14 retailers

17 retailers$3,182 SGD to $7,038 SGD

A
Cheapest Retailer
-
$3,182 SGD
A
Retailer 2
-
$3,322 SGD
View
B+
Retailer 3
-
$3,804 SGD
View
B+
Retailer 4
-
$3,847 SGD
View
B+
Retailer 5
-
$3,894 SGD
View
Final sale: no returns
B+
Retailer 6
-
$4,050 SGD
View
B+
Retailer 7
-
$4,082 SGD
View
Retailer 8
-
$4,220 SGD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$4,313 SGD
View
B+
Retailer 10
-
$4,366 SGD
View
B+
Retailer 11
-
$4,424 SGD
View
B+
Retailer 12
-
$4,511 SGD
View
B+
Retailer 13
-
$4,678 SGD
View
Retailer 14
-
$4,692 SGD
View
Price last confirmed 34 days ago
B+
Retailer 15
-
$4,912 SGD
View
B+
Retailer 16
-
$5,151 SGD
View
Most Expensive
B
MOH London
ED05D376F · Nov 4
$7,038 SGD
£4,324 GBP
View
16 more retailers have this diamond
Prices start from $3,182 SGDSave up to $3,856 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
$3,182 SGD