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Cushion|Natural|IGI

1.21ct H SI1 Cushion Natural Diamond

VG • H/SI1 • IGI 803629203

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 803629203

Diamond specifications and retailer prices

From $1,899 SGD
As of November 6, 2026
Save $1,769 SGD (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,669 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 803629203. Listed at 12 retailers as of November 4, 2026, with prices from $1,899 to $3,669, a $1,769 spread on the same certified stone. MOH London lists it at $3,669. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle36.8°
OriginNatural
Grading LabIGI
CertificateIGI 803629203
Dimensions7.24 × 5.56 × 3.78 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.24 mm5.56 mm1.21 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629203
Side View
Table 63.0%Crown 34.2°Girdle: THN-THKPavilion 36.8°Culet: NoneDepth 68.0%

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: $3,669 SGD|Low: $1,830 SGD|High: $3,836 SGD|Avg: $2,483 SGD|-3.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 4$1,899 SGD
Retailer 5$1,908 SGD
Retailer 9$1,948 SGD
Retailer 10$2,144 SGD
Retailer 3$2,163 SGD
Retailer 11$2,197 SGD
Retailer 7$2,233 SGD
Retailer 2$2,322 SGD
Retailer 8$2,562 SGD
Retailer 6$2,611 SGD
MOH London$3,669 SGD

44 data points across 11 retailers

12 retailers$1,899 SGD to $3,669 SGD

A
Cheapest Retailer
-
$1,899 SGD
Final sale: no returns
A
Retailer 2
-
$1,908 SGD
View
A
Retailer 3
-
$1,948 SGD
View
A
Retailer 4
-
$2,144 SGD
View
Retailer 5
-
$2,163 SGD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$2,197 SGD
View
B+
Retailer 7
-
$2,197 SGD
View
A
Retailer 8
-
$2,233 SGD
View
A
Retailer 9
-
$2,322 SGD
View
A
Retailer 10
-
$2,562 SGD
View
A
Retailer 11
-
$2,611 SGD
View
Most Expensive
B
MOH London
0CDBA82A1 · Nov 4
$3,669 SGD
£2,254 GBP
View
11 more retailers have this diamond
Prices start from $1,899 SGDSave up to $1,769 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
$1,899 SGD