Cushion|Natural|GIA

1.21ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6237913262

Certificate GIA 6237913262

Diamond specifications and retailer prices

From $3,400 USD
As of November 6, 2026
Save $2,664 USD (44%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $6,064 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6237913262. Listed at 5 retailers as of November 2, 2026, with prices from $3,400 to $6,064, a $2,664 spread on the same certified stone. MOH London lists it at $6,064. 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6237913262
Dimensions6.78 × 5.33 × 3.78 mm
L/W Ratio1.27
Top View
6.78 mm5.33 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6237913262
Side View
Table 68.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 71.0%

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: $6,064 USD|Low: $2,850 USD|High: $6,096 USD|Avg: $3,887 USD|+1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$2,850 USD
Retailer 6$2,967 USD
Retailer 8$3,280 USD
Retailer 5$3,400 USD
Retailer 2$3,517 USD
Retailer 3$4,221 USD
Retailer 9$4,285 USD
Retailer 4$4,425 USD
MOH London$6,064 USD

46 data points across 9 retailers

5 retailers$3,400 USD to $6,064 USD

B+
Cheapest Retailer
-
$3,400 USD
B+
Retailer 2
-
$3,517 USD
View
B+
Retailer 3
-
$4,221 USD
View
B
Retailer 4
-
$4,425 USD
View
Most Expensive
B
MOH London
CF58C62CC · Nov 2
$6,064 USD
£4,775 GBP
View
4 more retailers have this diamond
Prices start from $3,400 USDSave up to $2,664 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
$3,400 USD