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Cushion|Natural|GIA

0.90ct J SI2 Cushion Natural Diamond

VG • J/SI2 • GIA 2504639189

Certificate GIA 2504639189

Diamond specifications and retailer prices

From HK$4,700 HKD
$599 USD
As of October 31, 2026
Save HK$8,486 HKD (64%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$13,185 HKD at Moon Ocean · As of November 1, 2026
View at Moon Ocean

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2504639189. Listed at 10 retailers as of October 31, 2026, with prices from HK$4,700 to HK$13,185, a HK$8,486 spread on the same certified stone. Moon Ocean lists it at HK$13,185. 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

0.90
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2504639189
Dimensions5.31 × 5.20 × 3.62 mm
L/W Ratio1.02
Top View
5.31 mm5.20 mm0.90 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2504639189
Side View
Table 64.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 69.7%

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: Oct 31
Current: HK$13,185 HKD|Low: HK$4,700 HKD|High: HK$15,494 HKD|Avg: HK$7,521 HKD|-14.5%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6HK$4,700 HKD
Retailer 7HK$5,139 HKD
Retailer 9HK$5,704 HKD
Retailer 4HK$5,845 HKD
Retailer 5HK$5,884 HKD
Retailer 10HK$5,994 HKD
Retailer 2HK$6,277 HKD
Retailer 3HK$7,488 HKD
Retailer 8HK$10,462 HKD
Moon OceanHK$13,185 HKD

40 data points across 10 retailers

10 retailersHK$4,700 HKD to HK$13,185 HKD

A
Cheapest Retailer
-
HK$4,700 HKD
$599 USD
Final sale: no returns
A
Retailer 2
-
HK$5,139 HKD
$655 USD
View
Retailer 3
-
HK$5,704 HKD
$727 USD
View
Price last confirmed 24 days ago
A
Retailer 4
-
HK$5,845 HKD
$745 USD
View
A
Retailer 5
-
HK$5,884 HKD
$750 USD
View
Retailer 6
-
HK$5,994 HKD
$764 USD
View
Price last confirmed 27 days ago
A
Retailer 7
-
HK$6,277 HKD
£630 GBP
View
A
Retailer 8
-
HK$7,488 HKD
€909 EUR
View
B+
Retailer 9
-
HK$10,462 HKD
£1,050 GBP
View
Most Expensive
B
Moon Ocean
NVN-B680F9826-189 · Nov 1
HK$13,185 HKD
£1,323 GBP
View
9 more retailers have this diamond
Prices start from HK$4,700 HKDSave up to HK$8,486 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
0.90ct Cushion
HK$4,700 HKD