CaratHunter
Plans
Round|Natural|GIA

0.90ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1455851206

Certificate GIA 1455851206

Diamond specifications and retailer prices

From $2,078 AUD
$1,460 USD
As of October 25, 2026
Save $2,337 AUD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,113 AUD at NZ Jewellers · As of October 30, 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 1455851206. Listed at 17 retailers as of October 25, 2026, with a 112% 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
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1455851206
Dimensions6.17 × 6.10 × 3.87 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.17 mm6.10 mm0.90 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1455851206
Side View
Table 57.0%Crown 35°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 63.0%

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 25
Current: $3,425 AUD|Low: $1,747 AUD|High: $4,444 AUD|Avg: $2,723 AUD|+4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 4$2,078 AUD
Retailer 5$2,096 AUD
Retailer 7$2,214 AUD
Retailer 6$2,318 AUD
Retailer 8$2,378 AUD
Retailer 3$2,424 AUD
Retailer 1$3,425 AUD
Retailer 9$3,604 AUD
Retailer 2$4,415 AUD

39 data points across 9 retailers

17 retailers$2,078 AUD to $4,415 AUD

B+
Cheapest Retailer
-
$2,078 AUD
$1,460 USD
B+
Retailer 2
-
$2,096 AUD
$1,472 USD
View
Final sale: no returns
B+
Retailer 3
-
$2,104 AUD
$1,478 USD
View
B+
Retailer 4
-
$2,191 AUD
$1,539 USD
View
B
Retailer 5
-
$2,271 AUD
$1,595 USD
View
B
Retailer 6
-
$2,271 AUD
$1,595 USD
View
B
Retailer 7
-
$2,318 AUD
$1,628 USD
View
B+
Retailer 8
-
$2,376 AUD
$1,669 USD
View
B+
Retailer 9
-
$2,378 AUD
$1,671 USD
View
B+
Retailer 10
-
$2,424 AUD
£1,341 GBP
View
B
Retailer 11
-
$2,562 AUD
$1,800 USD
View
B
Retailer 12
-
$2,562 AUD
$1,800 USD
View
B
Retailer 13
-
$2,619 AUD
$1,840 USD
View
B
Retailer 14
-
$2,648 AUD
$1,860 USD
View
B
Retailer 15
-
$3,425 AUD
€2,291 EUR
View
B
Retailer 16
-
$4,415 AUD
£2,442 GBP
View
Most Expensive
NZ Jewellers
4bc21d95-6706-46f4-af1d-e750ebd3172e · Oct 30
$6,113 AUD
$4,294 USD
View
Price under review
16 more retailers have this diamond
Prices start from $2,078 AUDSave up to $2,337 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
$2,078 AUD