Round|Natural|GIA

0.90ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1523745327

Certificate GIA 1523745327

Diamond specifications and retailer prices

From $806 USD
HK$6,300 HKD
As of October 29, 2026
Save $1,199 USD (60%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $2,655 USD 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
Color
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 29
Current: $1,234 USD|Low: $773 USD|High: $2,018 USD|Avg: $1,162 USD|+5.0%
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$806 USD
Retailer 5$812 USD
Retailer 2$999 USD
Retailer 10$1,004 USD
Retailer 12$1,035 USD
Retailer 7$1,089 USD
Retailer 3$1,126 USD
Retailer 4$1,141 USD
Retailer 1$1,234 USD
Retailer 9$1,289 USD
Retailer 11$1,408 USD
Retailer 6$2,005 USD

40 data points across 12 retailers

31 retailers$806 USD to $2,005 USD

A
Cheapest Retailer
-
$806 USD
HK$6,300 HKD
A
Retailer 2
-
$812 USD
₹77,358 INR
View
Retailer 3
-
$999 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
$1,004 USD
View
Final sale: no returns
A
Retailer 5
-
$1,035 USD
View
A
Retailer 6
-
$1,043 USD
View
Retailer 7
-
$1,082 USD
A$1,665 AUD
View
Price last confirmed 171 days ago
Retailer 8
-
$1,089 USD
View
Price last confirmed 22 days ago
Retailer 9
-
$1,089 USD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$1,089 USD
View
Retailer 11
-
$1,089 USD
View
Price last confirmed 14 days ago
Retailer 12
-
$1,089 USD
View
Price last confirmed 18 days ago
Retailer 13
-
$1,089 USD
View
Price last confirmed 21 days ago
A
Retailer 14
-
$1,089 USD
View
Retailer 15
-
$1,115 USD
View
Price last confirmed 36 days ago
B+
Retailer 16
-
$1,126 USD
SGD 1,522 SGD
View
Retailer 17
-
$1,131 USD
View
Price last confirmed 14 days ago
Retailer 18
-
$1,131 USD
View
Price last confirmed 30 days ago
B+
Retailer 19
-
$1,131 USD
View
B+
Retailer 20
-
$1,141 USD
View
B+
Retailer 21
-
$1,234 USD
£971 GBP
View
Retailer 22
-
$1,256 USD
View
Price last confirmed 38 days ago
Retailer 23
-
$1,256 USD
View
Price last confirmed 9 days ago
Retailer 24
-
$1,256 USD
View
Price last confirmed 21 days ago
Retailer 25
-
$1,256 USD
View
Price last confirmed 30 days ago
B+
Retailer 26
-
$1,289 USD
£1,015 GBP
View
B
Retailer 27
-
$2,005 USD
£1,579 GBP
View
Retailer 28
-
$2,655 USD
View
Price last confirmed 38 days ago
Retailer 29
-
$2,655 USD
View
Price last confirmed 21 days ago
Retailer 30
-
$2,655 USD
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
ce7d2ecf-52c7-4f0a-9b30-a7f1cce9af9d · Oct 20
$2,655 USD
View
Price last confirmed 9 days ago
30 more retailers have this diamond
Prices start from $806 USDSave up to $1,199 USD

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
$806 USD