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Cushion|Natural|GIA

0.90ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1543517429

Certificate GIA 1543517429

Diamond specifications and retailer prices

From $1,020 AUD
HK$5,600 HKD
As of October 31, 2026
Save $1,447 AUD (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,468 AUD at Moon Ocean · As of October 30, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1543517429. Listed at 18 retailers as of October 30, 2026, with prices from $1,020 to $2,468, a $1,447 spread on the same certified stone. Moon Ocean lists it at $2,468. 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

0.90
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle39.9°
OriginNatural
Grading LabGIA
CertificateGIA 1543517429
Dimensions5.80 × 5.57 × 3.69 mm
L/W Ratio1.04
Girdle conditionFaceted
Top View
5.80 mm5.57 mm0.90 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1543517429
Side View
Table 66.0%CrownGirdle: MED-VTKPavilion 39.9°Culet: NoneDepth 66.2%

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: $2,468 AUD|Low: $1,002 AUD|High: $2,535 AUD|Avg: $1,631 AUD|-2.5%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 9$1,020 AUD
Retailer 2$1,160 AUD
Retailer 5$1,367 AUD
Retailer 15$1,398 AUD
Retailer 6$1,413 AUD
Retailer 11$1,495 AUD
Retailer 13$1,502 AUD
Retailer 8$1,540 AUD
Retailer 14$1,560 AUD
Retailer 7$1,653 AUD
Retailer 4$1,663 AUD
Retailer 10$1,801 AUD
Retailer 12$1,873 AUD
Retailer 3$2,108 AUD
Retailer 16$2,354 AUD
Moon Ocean$2,468 AUD

24 data points across 16 retailers

18 retailers$1,020 AUD to $2,468 AUD

A
Cheapest Retailer
-
$1,020 AUD
HK$5,600 HKD
A
Retailer 2
-
$1,160 AUD
$815 USD
View
Final sale: no returns
A
Retailer 3
-
$1,367 AUD
$960 USD
View
A
Retailer 4
-
$1,398 AUD
$982 USD
View
Retailer 5
-
$1,413 AUD
SGD 1,341 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,495 AUD
£827 GBP
View
B+
Retailer 7
-
$1,502 AUD
$1,055 USD
View
A
Retailer 8
-
$1,540 AUD
SGD 1,462 SGD
View
B+
Retailer 9
-
$1,560 AUD
$1,096 USD
View
B+
Retailer 10
-
$1,653 AUD
$1,161 USD
View
B+
Retailer 11
-
$1,663 AUD
$1,168 USD
View
B+
Retailer 12
-
$1,801 AUD
€1,205 EUR
View
B+
Retailer 13
-
$1,873 AUD
ZAR 21,251 ZAR
View
B+
Retailer 14
-
$1,895 AUD
View
Retailer 15
-
$1,955 AUD
View
Price last confirmed 27 days ago
Retailer 16
-
$2,108 AUD
$1,481 USD
View
Price last confirmed 8 days ago
Retailer 17
-
$2,354 AUD
£1,302 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Moon Ocean
NVN-557560A9C-429 · Oct 30
$2,468 AUD
£1,365 GBP
View
17 more retailers have this diamond
Prices start from $1,020 AUDSave up to $1,447 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
$1,020 AUD