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Round|Natural|GIA

0.90ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1523745327

Certificate GIA 1523745327

Diamond specifications and retailer prices

From $1,148 AUD
HK$6,300 HKD
As of October 30, 2026
Save $1,707 AUD (60%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $3,780 AUD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1523745327. Listed at 31 retailers as of October 29, 2026, with a 149% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1523745327
Dimensions6.24 × 6.19 × 3.78 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
6.24 mm6.19 mm0.90 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1523745327
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.7%

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 30
Current: $1,155 AUD|Low: $1,100 AUD|High: $2,873 AUD|Avg: $1,655 AUD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 8$1,148 AUD
Retailer 1$1,155 AUD
Retailer 2$1,422 AUD
Retailer 10$1,429 AUD
Retailer 12$1,473 AUD
Retailer 7$1,550 AUD
Retailer 3$1,603 AUD
Retailer 4$1,624 AUD
Retailer 5$1,756 AUD
Retailer 9$1,835 AUD
Retailer 11$2,004 AUD
Retailer 6$2,855 AUD

40 data points across 12 retailers

31 retailers$1,148 AUD to $2,855 AUD

A
Cheapest Retailer
-
$1,148 AUD
HK$6,300 HKD
A
Retailer 2
-
$1,155 AUD
₹77,299 INR
View
Retailer 3
-
$1,422 AUD
$999 USD
View
Price last confirmed 22 days ago
B+
Retailer 4
-
$1,429 AUD
$1,004 USD
View
Final sale: no returns
A
Retailer 5
-
$1,473 AUD
$1,035 USD
View
A
Retailer 6
-
$1,485 AUD
$1,043 USD
View
Retailer 7
-
$1,541 AUD
View
Price last confirmed 172 days ago
Retailer 8
-
$1,550 AUD
$1,089 USD
View
Price last confirmed 22 days ago
Retailer 9
-
$1,550 AUD
$1,089 USD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$1,550 AUD
$1,089 USD
View
Retailer 11
-
$1,550 AUD
$1,089 USD
View
Price last confirmed 14 days ago
Retailer 12
-
$1,550 AUD
$1,089 USD
View
Price last confirmed 19 days ago
Retailer 13
-
$1,550 AUD
$1,089 USD
View
Price last confirmed 21 days ago
A
Retailer 14
-
$1,550 AUD
$1,089 USD
View
Retailer 15
-
$1,587 AUD
$1,115 USD
View
Price last confirmed 37 days ago
B+
Retailer 16
-
$1,603 AUD
SGD 1,522 SGD
View
Retailer 17
-
$1,610 AUD
$1,131 USD
View
Price last confirmed 15 days ago
Retailer 18
-
$1,610 AUD
$1,131 USD
View
Price last confirmed 31 days ago
B+
Retailer 19
-
$1,610 AUD
$1,131 USD
View
B+
Retailer 20
-
$1,624 AUD
$1,141 USD
View
B+
Retailer 21
-
$1,756 AUD
£971 GBP
View
Retailer 22
-
$1,788 AUD
$1,256 USD
View
Price last confirmed 38 days ago
Retailer 23
-
$1,788 AUD
$1,256 USD
View
Price last confirmed 9 days ago
Retailer 24
-
$1,788 AUD
$1,256 USD
View
Price last confirmed 21 days ago
Retailer 25
-
$1,788 AUD
$1,256 USD
View
Price last confirmed 31 days ago
B+
Retailer 26
-
$1,835 AUD
£1,015 GBP
View
B
Retailer 27
-
$2,855 AUD
£1,579 GBP
View
Retailer 28
-
$3,780 AUD
$2,655 USD
View
Price last confirmed 39 days ago
Retailer 29
-
$3,780 AUD
$2,655 USD
View
Price last confirmed 21 days ago
Retailer 30
-
$3,780 AUD
$2,655 USD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
ce7d2ecf-52c7-4f0a-9b30-a7f1cce9af9d · Oct 20
$3,780 AUD
$2,655 USD
View
Price last confirmed 10 days ago
30 more retailers have this diamond
Prices start from $1,148 AUDSave up to $1,707 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 Round
$1,148 AUD