Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6542540034

Certificate GIA 6542540034

Diamond specifications and retailer prices

From $2,872 USD
As of November 6, 2026
Save $3,049 USD (51%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,921 USD at MOH London · As of November 2, 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 6542540034. Listed at 19 retailers as of November 2, 2026, with prices from $2,872 to $5,921, a $3,049 spread on the same certified stone. MOH London lists it at $5,921. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542540034
Dimensions7.29 × 5.37 × 3.69 mm
L/W Ratio1.36
Cert comments
Additional pinpoints are not shown.
Key to symbols
Crystal, Feather, Pinpoint
Top View
7.29 mm5.37 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542540034
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.7%

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: $5,921 USD|Low: $2,713 USD|High: $5,992 USD|Avg: $3,705 USD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12$2,872 USD
Retailer 10$2,959 USD
Retailer 11$3,002 USD
Retailer 3$3,012 USD
Retailer 9$3,207 USD
Retailer 2$3,434 USD
Retailer 8$3,637 USD
Retailer 6$3,641 USD
Retailer 4$3,791 USD
Retailer 5$4,121 USD
Retailer 7$4,320 USD
MOH London$5,921 USD

38 data points across 12 retailers

19 retailers$2,872 USD to $5,921 USD

Retailer 1
-
$2,808 USD
Price last confirmed 31 days ago
B+
Retailer 2
-
$2,872 USD
View
B+
Retailer 3
-
$2,959 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,002 USD
View
B+
Retailer 5
-
$3,012 USD
View
Retailer 6
-
$3,207 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$3,434 USD
View
B
Retailer 8
-
$3,448 USD
View
B
Retailer 9
-
$3,637 USD
View
Retailer 10
-
$3,637 USD
View
Price last confirmed 19 days ago
B
Retailer 11
-
$3,640 USD
View
B
Retailer 12
-
$3,640 USD
View
B
Retailer 13
-
$3,641 USD
View
B
Retailer 14
-
$3,760 USD
View
Retailer 15
-
$3,791 USD
View
Price last confirmed 30 days ago
Retailer 16
-
$4,011 USD
View
Price last confirmed 15 days ago
B
Retailer 17
-
$4,121 USD
View
B
Retailer 18
-
$4,320 USD
View
Most Expensive
B
MOH London
AB3735B3F · Nov 2
$5,921 USD
£4,662 GBP
View
18 more retailers have this diamond
Prices start from $2,872 USDSave up to $3,049 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
$2,872 USD