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Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 7558661636

Certificate GIA 7558661636

Diamond specifications and retailer prices

From HK$7,022 HKD
As of November 6, 2026
Save HK$10,337 HKD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$17,359 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558661636. Listed at 14 retailers as of November 4, 2026, with prices from HK$7,022 to HK$17,359, a HK$10,337 spread on the same certified stone. MOH London lists it at HK$17,359. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558661636
Dimensions5.61 × 5.29 × 3.91 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Pinpoint
Top View
5.61 mm5.29 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558661636
Side View
Table 63.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 73.9%

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$17,359 HKD|Low: HK$7,069 HKD|High: HK$17,568 HKD|Avg: HK$11,044 HKD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2HK$7,069 HKD
Retailer 11HK$8,762 HKD
Retailer 9HK$9,131 HKD
Retailer 10HK$9,499 HKD
Retailer 8HK$9,585 HKD
Retailer 5HK$9,812 HKD
Retailer 6HK$10,667 HKD
Retailer 7HK$11,592 HKD
Retailer 3HK$12,422 HKD
Retailer 4HK$13,206 HKD
MOH LondonHK$17,359 HKD

35 data points across 11 retailers

14 retailersHK$7,022 HKD to HK$17,359 HKD

A
Cheapest Retailer
-
HK$7,022 HKD
A
Retailer 2
-
HK$7,069 HKD
View
A
Retailer 3
-
HK$8,762 HKD
View
Final sale: no returns
B+
Retailer 4
-
HK$9,099 HKD
View
A
Retailer 5
-
HK$9,131 HKD
View
Retailer 6
-
HK$9,499 HKD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
HK$9,585 HKD
View
B+
Retailer 8
-
HK$9,812 HKD
View
B+
Retailer 9
-
HK$10,549 HKD
View
B+
Retailer 10
-
HK$10,667 HKD
View
B+
Retailer 11
-
HK$11,592 HKD
View
Retailer 12
-
HK$12,422 HKD
View
Price last confirmed 34 days ago
B+
Retailer 13
-
HK$13,206 HKD
View
Most Expensive
B
MOH London
73F05D08F · Nov 4
HK$17,359 HKD
£1,744 GBP
View
13 more retailers have this diamond
Prices start from HK$7,022 HKDSave up to HK$10,337 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$7,022 HKD