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Cushion|Natural|GIA

1.02ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5231993457

Certificate GIA 5231993457

Diamond specifications and retailer prices

From $2,245 AUD
$1,577 USD
As of November 1, 2026
Save $3,110 AUD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,355 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.02ct natural cushion diamond

This 1.02ct 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 5231993457. Listed at 14 retailers as of November 1, 2026, with prices from $2,245 to $5,355, a $3,110 spread on the same certified stone. MOH London lists it at $5,355. 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

1.02
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.39°
OriginNatural
Grading LabGIA
CertificateGIA 5231993457
Dimensions5.90 × 5.87 × 3.94 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.90 mm5.87 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231993457
Side View
Table 61.0%Crown 33.7°Girdle: THK-ETKPavilion 40.39°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,355 AUD|Low: $2,245 AUD|High: $6,382 AUD|Avg: $3,675 AUD|-16.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 8$2,245 AUD
Retailer 9$2,332 AUD
Retailer 11$2,507 AUD
Retailer 12$2,557 AUD
Retailer 3$2,656 AUD
Retailer 5$2,854 AUD
Retailer 4$3,018 AUD
Retailer 13$3,018 AUD
Retailer 14$3,118 AUD
Retailer 7$3,354 AUD
Retailer 10$3,731 AUD
Retailer 2$3,906 AUD
Retailer 6$4,007 AUD
MOH London$5,355 AUD

42 data points across 14 retailers

14 retailers$2,245 AUD to $5,355 AUD

A
Cheapest Retailer
-
$2,245 AUD
$1,577 USD
A
Retailer 2
-
$2,332 AUD
HK$12,800 HKD
View
A
Retailer 3
-
$2,507 AUD
$1,761 USD
View
A
Retailer 4
-
$2,557 AUD
$1,796 USD
View
Final sale: no returns
A
Retailer 5
-
$2,656 AUD
$1,866 USD
View
A
Retailer 6
-
$2,854 AUD
$2,005 USD
View
A
Retailer 7
-
$3,018 AUD
$2,120 USD
View
A
Retailer 8
-
$3,018 AUD
$2,120 USD
View
A
Retailer 9
-
$3,118 AUD
$2,190 USD
View
A
Retailer 10
-
$3,354 AUD
£1,855 GBP
View
B+
Retailer 11
-
$3,731 AUD
$2,621 USD
View
B+
Retailer 12
-
$3,906 AUD
€2,613 EUR
View
Retailer 13
-
$4,007 AUD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
650C56878 · Nov 1
$5,355 AUD
£2,962 GBP
View
13 more retailers have this diamond
Prices start from $2,245 AUDSave up to $3,110 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.

A
1.02ct Cushion
$2,245 AUD