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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 $1,577 USD
As of November 1, 2026
Save $2,185 USD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,762 USD 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 $1,577 to $3,762, a $2,185 spread on the same certified stone. MOH London lists it at $3,762. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,762 USD|Low: $1,577 USD|High: $4,483 USD|Avg: $2,582 USD|-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$1,577 USD
Retailer 9$1,638 USD
Retailer 11$1,761 USD
Retailer 12$1,796 USD
Retailer 3$1,866 USD
Retailer 5$2,005 USD
Retailer 4$2,120 USD
Retailer 13$2,120 USD
Retailer 14$2,190 USD
Retailer 7$2,356 USD
Retailer 10$2,621 USD
Retailer 2$2,744 USD
Retailer 6$2,815 USD
MOH London$3,762 USD

42 data points across 14 retailers

14 retailers$1,577 USD to $3,762 USD

A
Cheapest Retailer
-
$1,577 USD
A
Retailer 2
-
$1,638 USD
HK$12,800 HKD
View
A
Retailer 3
-
$1,761 USD
View
A
Retailer 4
-
$1,796 USD
View
Final sale: no returns
A
Retailer 5
-
$1,866 USD
View
A
Retailer 6
-
$2,005 USD
View
A
Retailer 7
-
$2,120 USD
View
A
Retailer 8
-
$2,120 USD
View
A
Retailer 9
-
$2,190 USD
View
A
Retailer 10
-
$2,356 USD
£1,855 GBP
View
B+
Retailer 11
-
$2,621 USD
View
B+
Retailer 12
-
$2,744 USD
€2,613 EUR
View
Retailer 13
-
$2,815 USD
A$4,331 AUD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
650C56878 · Nov 1
$3,762 USD
£2,962 GBP
View
13 more retailers have this diamond
Prices start from $1,577 USDSave up to $2,185 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.

A
1.02ct Cushion
$1,577 USD