Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1455976885

Certificate GIA 1455976885

Diamond specifications and retailer prices

From $2,395 USD
As of November 6, 2026
Save $2,496 USD (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,891 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1455976885. Listed at 10 retailers as of November 1, 2026, with prices from $2,395 to $4,891, a $2,496 spread on the same certified stone. MOH London lists it at $4,891. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1455976885
Dimensions6.43 × 5.85 × 4.02 mm
L/W Ratio1.10
Key to symbols
Crystal, Cloud, Needle
Top View
6.43 mm5.85 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1455976885
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,891 USD|Low: $2,129 USD|High: $4,950 USD|Avg: $3,156 USD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$2,340 USD
Retailer 5$2,446 USD
Retailer 6$2,901 USD
Retailer 3$3,126 USD
Retailer 2$3,237 USD
MOH London$4,891 USD

43 data points across 6 retailers

10 retailers$2,395 USD to $4,891 USD

Retailer 1
-
$2,340 USD
Price last confirmed 10 days ago
B+
Retailer 2
-
$2,395 USD
View
B+
Retailer 3
-
$2,446 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,901 USD
View
B
Retailer 5
-
$3,060 USD
View
B
Retailer 6
-
$3,060 USD
View
B+
Retailer 7
-
$3,126 USD
View
B
Retailer 8
-
$3,160 USD
View
B+
Retailer 9
-
$3,237 USD
View
Most Expensive
B
MOH London
D2D4E4548 · Nov 1
$4,891 USD
£3,851 GBP
View
9 more retailers have this diamond
Prices start from $2,395 USDSave up to $2,496 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.

B+
1.21ct Cushion
$2,395 USD