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Cushion|Natural|GIA

1.00ct J SI2 Cushion Natural Diamond

GD • J/SI2 • GIA 6281730589

Certificate GIA 6281730589

Diamond specifications and retailer prices

From HK$19,923 HKD
As of November 6, 2026
Save HK$19,055 HKD (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$38,978 HKD at MOH London · As of November 2, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6281730589. Listed at 6 retailers as of November 2, 2026, with prices from HK$19,923 to HK$38,978, a HK$19,055 spread on the same certified stone. MOH London lists it at HK$38,978. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6281730589
Dimensions6.00 × 5.34 × 3.65 mm
L/W Ratio1.12
Cert comments
CANADIAN DIAMOND
Top View
6.00 mm5.34 mm1.00 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6281730589
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
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$38,978 HKD|Low: HK$19,445 HKD|High: HK$39,446 HKD|Avg: HK$24,395 HKD|+1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6HK$19,923 HKD
Retailer 7HK$20,228 HKD
Retailer 4HK$20,416 HKD
Retailer 5HK$20,471 HKD
Retailer 3HK$22,243 HKD
Retailer 8HK$25,832 HKD
Retailer 2HK$25,887 HKD
MOH LondonHK$38,978 HKD

26 data points across 8 retailers

6 retailersHK$19,923 HKD to HK$38,978 HKD

B
Cheapest Retailer
-
HK$19,923 HKD
Retailer 2
-
HK$20,416 HKD
View
Price last confirmed 10 days ago
B
Retailer 3
-
HK$20,471 HKD
View
Retailer 4
-
HK$22,243 HKD
View
Price last confirmed 9 days ago
C
Retailer 5
-
HK$25,887 HKD
View
Most Expensive
C
MOH London
49330C978 · Nov 2
HK$38,978 HKD
£3,916 GBP
View
5 more retailers have this diamond
Prices start from HK$19,923 HKDSave up to HK$19,055 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.

B
1.00ct Cushion
HK$19,923 HKD