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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 $853 AUD
$599 USD
As of October 31, 2026
Save $1,540 AUD (64%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,392 AUD 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 $853 to $2,392, a $1,540 spread on the same certified stone. Moon Ocean lists it at $2,392. 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: $2,392 AUD|Low: $853 AUD|High: $2,811 AUD|Avg: $1,365 AUD|-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 6$853 AUD
Retailer 7$932 AUD
Retailer 9$1,035 AUD
Retailer 4$1,061 AUD
Retailer 5$1,068 AUD
Retailer 10$1,088 AUD
Retailer 2$1,139 AUD
Retailer 3$1,359 AUD
Retailer 8$1,898 AUD
Moon Ocean$2,392 AUD

40 data points across 10 retailers

10 retailers$853 AUD to $2,392 AUD

A
Cheapest Retailer
-
$853 AUD
$599 USD
Final sale: no returns
A
Retailer 2
-
$932 AUD
$655 USD
View
Retailer 3
-
$1,035 AUD
$727 USD
View
Price last confirmed 24 days ago
A
Retailer 4
-
$1,061 AUD
$745 USD
View
A
Retailer 5
-
$1,068 AUD
$750 USD
View
Retailer 6
-
$1,088 AUD
$764 USD
View
Price last confirmed 27 days ago
A
Retailer 7
-
$1,139 AUD
£630 GBP
View
A
Retailer 8
-
$1,359 AUD
€909 EUR
View
B+
Retailer 9
-
$1,898 AUD
£1,050 GBP
View
Most Expensive
B
Moon Ocean
NVN-B680F9826-189 · Nov 1
$2,392 AUD
£1,323 GBP
View
9 more retailers have this diamond
Prices start from $853 AUDSave up to $1,540 AUD

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
$853 AUD