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 $1,482 USD
As of November 6, 2026
Save $1,381 USD (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,863 USD 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 $1,482 to $2,863, a $1,381 spread on the same certified stone. MOH London lists it at $2,863. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,863 USD|Low: $1,428 USD|High: $2,993 USD|Avg: $1,925 USD|-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 6, 2026
Retailer 2$1,482 USD
Retailer 4$1,489 USD
Retailer 9$1,520 USD
Retailer 10$1,673 USD
Retailer 3$1,688 USD
Retailer 11$1,714 USD
Retailer 6$1,742 USD
Retailer 7$1,812 USD
Retailer 8$1,999 USD
Retailer 5$2,037 USD
MOH London$2,863 USD

43 data points across 11 retailers

12 retailers$1,482 USD to $2,863 USD

A
Cheapest Retailer
-
$1,482 USD
Final sale: no returns
A
Retailer 2
-
$1,489 USD
View
A
Retailer 3
-
$1,520 USD
View
A
Retailer 4
-
$1,673 USD
View
Retailer 5
-
$1,688 USD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$1,714 USD
View
B+
Retailer 7
-
$1,714 USD
View
A
Retailer 8
-
$1,742 USD
View
A
Retailer 9
-
$1,812 USD
View
A
Retailer 10
-
$1,999 USD
View
A
Retailer 11
-
$2,037 USD
View
Most Expensive
B
MOH London
0CDBA82A1 · Nov 4
$2,863 USD
£2,254 GBP
View
11 more retailers have this diamond
Prices start from $1,482 USDSave up to $1,381 USD

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
$1,482 USD