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Cushion|Natural|GIA

1.21ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 5566549839

Certificate GIA 5566549839

Diamond specifications and retailer prices

From $1,993 USD
As of October 30, 2026
Save $1,990 USD (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,983 USD at MOH London · As of November 1, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566549839. Listed at 9 retailers as of October 30, 2026, with prices from $1,993 to $3,983, a $1,990 spread on the same certified stone. MOH London lists it at $3,983. 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle35.02°
OriginNatural
Grading LabGIA
CertificateGIA 5566549839
Dimensions7.10 × 5.48 × 3.78 mm
L/W Ratio1.30
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.10 mm5.48 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566549839
Side View
Table 62.0%Crown 38°Girdle: Very ThickPavilion 35.02°Culet: NoneDepth 69.0%

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: Oct 30
Current: $3,983 USD|Low: $1,835 USD|High: $4,106 USD|Avg: $2,455 USD|-3.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$1,993 USD
Retailer 6$2,053 USD
Retailer 8$2,098 USD
Retailer 5$2,230 USD
Retailer 2$2,247 USD
Retailer 9$2,319 USD
Retailer 4$2,413 USD
Retailer 3$2,474 USD
MOH London$3,983 USD

21 data points across 9 retailers

9 retailers$1,993 USD to $3,983 USD

A
Cheapest Retailer
-
$1,993 USD
A
Retailer 2
-
$2,053 USD
View
B+
Retailer 3
-
$2,098 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,230 USD
View
A
Retailer 5
-
$2,247 USD
£1,770 GBP
View
B+
Retailer 6
-
$2,319 USD
View
B+
Retailer 7
-
$2,413 USD
View
B+
Retailer 8
-
$2,474 USD
£1,948 GBP
View
Most Expensive
B
MOH London
D1C81DA73 · Nov 1
$3,983 USD
£3,136 GBP
View
8 more retailers have this diamond
Prices start from $1,993 USDSave up to $1,990 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
$1,993 USD