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Cushion|Natural|GIA

1.21ct D SI1 Cushion Natural Diamond

EX • D/SI1

Diamond specifications and retailer prices

From $6,001 AUD
As of November 5, 2026
Save $923 AUD (13%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,923 AUD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

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. Listed at 4 retailers as of November 5, 2026, with prices from $6,001 to $6,923, a $923 spread on the same certified stone. The Diamond Guys lists it at $6,923. 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
Dimensions6.42 × 5.69 × 3.79 mm
L/W Ratio1.13
Top View
6.42 mm5.69 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCuletDepth 66.6%

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 5
Current: $6,573 AUD|Low: $6,001 AUD|High: $6,923 AUD|Avg: $6,453 AUD|-0.8%
Retailer 1
Retailer 2
Retailer 3
The Diamond Guys
November 6, 2026
Retailer 2$6,001 AUD
Retailer 3$6,231 AUD
Retailer 1$6,573 AUD
The Diamond Guys$6,923 AUD

41 data points across 4 retailers

4 retailers$6,001 AUD to $6,923 AUD

B+
Cheapest Retailer
-
$6,001 AUD
B
Retailer 2
-
$6,231 AUD
View
B
Retailer 3
-
$6,573 AUD
View
Most Expensive
B
The Diamond Guys
1957405758 · Nov 6
$6,923 AUD
$4,757 USD
View
3 more retailers have this diamond
Prices start from $6,001 AUDSave up to $923 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
$6,001 AUD