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Cushion|Natural|GIA

1.00ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 1508655786

Certificate GIA 1508655786

Diamond specifications and retailer prices

From HK$8,950 HKD
As of November 6, 2026
Save HK$3,590 HKD (29%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$17,867 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded J 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 1508655786. Listed at 11 retailers as of November 6, 2026, with a 40% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1508655786
Dimensions5.53 × 5.38 × 4.03 mm
L/W Ratio1.03
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
5.53 mm5.38 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1508655786
Side View
Table 59.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 75.0%

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 6
Current: HK$17,867 HKD|Low: HK$8,206 HKD|High: HK$20,355 HKD|Avg: HK$11,703 HKD|-12.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6HK$8,950 HKD
Retailer 7HK$9,295 HKD
Retailer 2HK$9,664 HKD
Retailer 5HK$9,703 HKD
Retailer 10HK$9,828 HKD
Retailer 8HK$10,753 HKD
Retailer 4HK$10,965 HKD
Retailer 9HK$11,827 HKD
Retailer 3HK$12,540 HKD
MOH LondonHK$17,867 HKD

42 data points across 10 retailers

11 retailersHK$8,950 HKD to HK$12,540 HKD

A
Cheapest Retailer
-
HK$8,950 HKD
Final sale: no returns
A
Retailer 2
-
HK$9,295 HKD
View
A
Retailer 3
-
HK$9,664 HKD
View
Retailer 4
-
HK$9,703 HKD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
HK$9,828 HKD
View
B+
Retailer 6
-
HK$10,753 HKD
View
B+
Retailer 7
-
HK$10,965 HKD
View
B+
Retailer 8
-
HK$11,827 HKD
View
B+
Retailer 9
-
HK$12,062 HKD
View
B+
Retailer 10
-
HK$12,540 HKD
View
Most Expensive
MOH London
C03E2AA9D · Oct 29
HK$17,867 HKD
£1,795 GBP
View
Price last confirmed 8 days ago
10 more retailers have this diamond
Prices start from HK$8,950 HKDSave up to HK$3,590 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$8,950 HKD