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Cushion|Natural|GIA

1.21ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 5231993495

Certificate GIA 5231993495

Diamond specifications and retailer prices

From $2,871 SGD
As of November 6, 2026
Save $3,423 SGD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,294 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 E 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 5231993495. Listed at 15 retailers as of November 4, 2026, with prices from $2,871 to $6,294, a $3,423 spread on the same certified stone. MOH London lists it at $6,294. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle36.5°
OriginNatural
Grading LabGIA
CertificateGIA 5231993495
Dimensions6.42 × 6.10 × 4.01 mm
L/W Ratio1.05
Culet sizeNone
Top View
6.42 mm6.10 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231993495
Side View
Table 59.0%Crown 38.4°Girdle: MED-ETKPavilion 36.5°Culet: NoneDepth 65.6%

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: Nov 6
Current: $6,294 SGD|Low: $2,832 SGD|High: $6,652 SGD|Avg: $3,966 SGD|-5.4%
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 10$2,871 SGD
Retailer 8$2,887 SGD
Retailer 9$3,064 SGD
Retailer 3$3,155 SGD
Retailer 14$3,219 SGD
Retailer 5$3,518 SGD
Retailer 4$3,704 SGD
Retailer 12$3,704 SGD
Retailer 13$3,832 SGD
Retailer 7$3,995 SGD
Retailer 2$4,137 SGD
Retailer 6$4,199 SGD
Retailer 11$4,624 SGD
MOH London$6,294 SGD

41 data points across 14 retailers

15 retailers$2,871 SGD to $6,294 SGD

A
Cheapest Retailer
-
$2,871 SGD
A
Retailer 2
-
$2,887 SGD
View
A
Retailer 3
-
$3,064 SGD
View
A
Retailer 4
-
$3,155 SGD
View
Final sale: no returns
A
Retailer 5
-
$3,219 SGD
View
B+
Retailer 6
-
$3,518 SGD
View
B+
Retailer 7
-
$3,704 SGD
View
B+
Retailer 8
-
$3,704 SGD
View
B+
Retailer 9
-
$3,832 SGD
View
B+
Retailer 10
-
$3,995 SGD
View
B+
Retailer 11
-
$4,137 SGD
View
Retailer 12
-
$4,199 SGD
View
Price last confirmed 30 days ago
Retailer 13
-
$4,561 SGD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$4,624 SGD
View
Most Expensive
B
MOH London
B80125C31 · Nov 4
$6,294 SGD
£3,867 GBP
View
14 more retailers have this diamond
Prices start from $2,871 SGDSave up to $3,423 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
$2,871 SGD