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Cushion|Natural|GIA

1.00ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 6425709135

Certificate GIA 6425709135

Diamond specifications and retailer prices

From HK$9,162 HKD
As of November 6, 2026
Save HK$9,431 HKD (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$18,593 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6425709135. Listed at 10 retailers as of November 4, 2026, with prices from HK$9,162 to HK$18,593, a HK$9,431 spread on the same certified stone. MOH London lists it at HK$18,593. 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

1.00
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6425709135
Dimensions5.48 × 5.41 × 3.74 mm
L/W Ratio1.01
Top View
5.48 mm5.41 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6425709135
Side View
Table 57.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 69.1%

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 6
Current: HK$18,593 HKD|Low: HK$9,162 HKD|High: HK$18,862 HKD|Avg: HK$11,299 HKD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7HK$9,162 HKD
Retailer 2HK$9,311 HKD
Retailer 8HK$9,389 HKD
Retailer 10HK$9,428 HKD
Retailer 3HK$10,008 HKD
Retailer 6HK$10,181 HKD
Retailer 9HK$10,855 HKD
Retailer 5HK$11,435 HKD
Retailer 4HK$14,123 HKD
MOH LondonHK$18,593 HKD

29 data points across 10 retailers

10 retailersHK$9,162 HKD to HK$18,593 HKD

A
Cheapest Retailer
-
HK$9,162 HKD
A
Retailer 2
-
HK$9,311 HKD
View
A
Retailer 3
-
HK$9,389 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$9,428 HKD
View
A
Retailer 5
-
HK$10,008 HKD
View
Retailer 6
-
HK$10,181 HKD
View
Price last confirmed 9 days ago
A
Retailer 7
-
HK$10,855 HKD
View
A
Retailer 8
-
HK$11,435 HKD
View
B+
Retailer 9
-
HK$14,123 HKD
View
Most Expensive
B+
MOH London
F1C310B20 · Nov 4
HK$18,593 HKD
£1,868 GBP
View
9 more retailers have this diamond
Prices start from HK$9,162 HKDSave up to HK$9,431 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
1.00ct Cushion
HK$9,162 HKD