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Cushion|Natural|GIA

1.21ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6237913262

Certificate GIA 6237913262

Diamond specifications and retailer prices

From $4,948 AUD
As of November 6, 2026
Save $3,878 AUD (44%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,826 AUD 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 $4,948 to $8,826, a $3,878 spread on the same certified stone. MOH London lists it at $8,826. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,826 AUD|Low: $4,148 AUD|High: $8,872 AUD|Avg: $5,657 AUD|+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$4,148 AUD
Retailer 6$4,318 AUD
Retailer 8$4,774 AUD
Retailer 5$4,948 AUD
Retailer 2$5,119 AUD
Retailer 3$6,143 AUD
Retailer 9$6,236 AUD
Retailer 4$6,440 AUD
MOH London$8,826 AUD

45 data points across 9 retailers

5 retailers$4,948 AUD to $8,826 AUD

B+
Cheapest Retailer
-
$4,948 AUD
B+
Retailer 2
-
$5,119 AUD
View
B+
Retailer 3
-
$6,143 AUD
View
B
Retailer 4
-
$6,440 AUD
View
Most Expensive
B
MOH London
CF58C62CC · Nov 2
$8,826 AUD
£4,775 GBP
View
4 more retailers have this diamond
Prices start from $4,948 AUDSave up to $3,878 AUD

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
$4,948 AUD