Round|Natural|GIA

0.90ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5483389951

Certificate GIA 5483389951

Diamond specifications and retailer prices

From $1,940 AUD
$1,363 USD
As of October 30, 2026
Save $3,724 AUD (66%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $5,665 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 5483389951. Listed at 28 retailers as of October 30, 2026, with a 192% 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
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5483389951
Dimensions6.19 × 6.15 × 3.79 mm
L/W Ratio1.01
Top View
6.19 mm6.15 mm0.90 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5483389951
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,587 AUD|Low: $1,780 AUD|High: $4,119 AUD|Avg: $2,693 AUD|+4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 7$1,940 AUD
Retailer 4$2,104 AUD
Retailer 6$2,174 AUD
Retailer 1$2,587 AUD
Retailer 5$2,766 AUD
Retailer 2$3,181 AUD
Retailer 3$4,091 AUD

42 data points across 7 retailers

28 retailers$1,940 AUD to $5,665 AUD

B+
Cheapest Retailer
-
$1,940 AUD
$1,363 USD
Final sale: no returns
B+
Retailer 2
-
$1,950 AUD
$1,370 USD
View
B+
Retailer 3
-
$2,030 AUD
$1,426 USD
View
B+
Retailer 4
-
$2,104 AUD
$1,478 USD
View
Retailer 5
-
$2,104 AUD
$1,478 USD
View
Price last confirmed 53 days ago
Retailer 6
-
$2,104 AUD
$1,478 USD
View
Price last confirmed 43 days ago
Retailer 7
-
$2,104 AUD
$1,478 USD
View
Price last confirmed 21 days ago
Retailer 8
-
$2,104 AUD
$1,478 USD
View
Price last confirmed 14 days ago
Retailer 9
-
$2,104 AUD
$1,478 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$2,174 AUD
$1,527 USD
View
Retailer 11
-
$2,201 AUD
$1,546 USD
View
Price last confirmed 31 days ago
B+
Retailer 12
-
$2,218 AUD
$1,558 USD
View
B+
Retailer 13
-
$2,406 AUD
$1,690 USD
View
B+
Retailer 14
-
$2,406 AUD
$1,690 USD
View
Retailer 15
-
$2,427 AUD
$1,705 USD
View
Price last confirmed 53 days ago
Retailer 16
-
$2,427 AUD
$1,705 USD
View
Price last confirmed 21 days ago
Retailer 17
-
$2,427 AUD
$1,705 USD
View
Price last confirmed 38 days ago
Retailer 18
-
$2,427 AUD
$1,705 USD
View
Price last confirmed 9 days ago
B+
Retailer 19
-
$2,427 AUD
$1,705 USD
View
B
Retailer 20
-
$2,477 AUD
$1,740 USD
View
B
Retailer 21
-
$2,587 AUD
£1,431 GBP
View
B
Retailer 22
-
$2,766 AUD
£1,530 GBP
View
B
Retailer 23
-
$3,181 AUD
€2,128 EUR
View
B
Retailer 24
-
$4,091 AUD
£2,263 GBP
View
Retailer 25
-
$5,665 AUD
$3,979 USD
View
Price last confirmed 40 days ago
Retailer 26
-
$5,665 AUD
$3,979 USD
View
Price last confirmed 32 days ago
B
Retailer 27
-
$5,665 AUD
$3,979 USD
View
Most Expensive
NZ Jewellers
64339355-837a-4eda-9d2e-b3f0e22d79bd · Oct 20
$5,665 AUD
$3,979 USD
View
Price last confirmed 10 days ago
27 more retailers have this diamond
Prices start from $1,940 AUDSave up to $3,724 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.

B+
0.90ct Round
$1,940 AUD