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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 HK$12,373 HKD
$1,577 USD
As of November 1, 2026
Save HK$17,141 HKD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$29,513 HKD 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 HK$12,373 to HK$29,513, a HK$17,141 spread on the same certified stone. MOH London lists it at HK$29,513. 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: HK$29,513 HKD|Low: HK$12,373 HKD|High: HK$35,223 HKD|Avg: HK$20,283 HKD|-16.2%
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 7HK$12,373 HKD
Retailer 8HK$12,854 HKD
Retailer 11HK$13,816 HKD
Retailer 12HK$14,091 HKD
Retailer 3HK$14,640 HKD
Retailer 5HK$15,731 HKD
Retailer 4HK$16,633 HKD
Retailer 13HK$16,633 HKD
Retailer 14HK$17,182 HKD
Retailer 2HK$18,483 HKD
Retailer 10HK$20,564 HKD
Retailer 9HK$21,460 HKD
Retailer 6HK$22,084 HKD
MOH LondonHK$29,513 HKD

43 data points across 14 retailers

14 retailersHK$12,373 HKD to HK$29,513 HKD

A
Cheapest Retailer
-
HK$12,373 HKD
$1,577 USD
A
Retailer 2
-
HK$12,854 HKD
View
A
Retailer 3
-
HK$13,816 HKD
$1,761 USD
View
A
Retailer 4
-
HK$14,091 HKD
$1,796 USD
View
Final sale: no returns
A
Retailer 5
-
HK$14,640 HKD
$1,866 USD
View
A
Retailer 6
-
HK$15,731 HKD
$2,005 USD
View
A
Retailer 7
-
HK$16,633 HKD
$2,120 USD
View
A
Retailer 8
-
HK$16,633 HKD
$2,120 USD
View
A
Retailer 9
-
HK$17,182 HKD
$2,190 USD
View
A
Retailer 10
-
HK$18,483 HKD
£1,855 GBP
View
B+
Retailer 11
-
HK$20,564 HKD
$2,621 USD
View
B+
Retailer 12
-
HK$21,460 HKD
€2,605 EUR
View
Retailer 13
-
HK$22,084 HKD
A$4,331 AUD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
650C56878 · Nov 1
HK$29,513 HKD
£2,962 GBP
View
13 more retailers have this diamond
Prices start from HK$12,373 HKDSave up to HK$17,141 HKD

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
HK$12,373 HKD