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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 $1,034 SGD
HK$6,300 HKD
As of October 29, 2026
Save $1,537 SGD (60%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $3,403 SGD 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 29
Current: $1,581 SGD|Low: $991 SGD|High: $2,587 SGD|Avg: $1,489 SGD|+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$1,034 SGD
Retailer 5$1,041 SGD
Retailer 2$1,280 SGD
Retailer 10$1,287 SGD
Retailer 12$1,327 SGD
Retailer 7$1,396 SGD
Retailer 3$1,444 SGD
Retailer 4$1,462 SGD
Retailer 1$1,581 SGD
Retailer 9$1,652 SGD
Retailer 11$1,805 SGD
Retailer 6$2,570 SGD

40 data points across 12 retailers

31 retailers$1,034 SGD to $2,570 SGD

A
Cheapest Retailer
-
$1,034 SGD
HK$6,300 HKD
A
Retailer 2
-
$1,041 SGD
₹77,358 INR
View
Retailer 3
-
$1,280 SGD
$999 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
$1,287 SGD
$1,004 USD
View
Final sale: no returns
A
Retailer 5
-
$1,327 SGD
$1,035 USD
View
A
Retailer 6
-
$1,337 SGD
$1,043 USD
View
Retailer 7
-
$1,387 SGD
A$1,665 AUD
View
Price last confirmed 171 days ago
Retailer 8
-
$1,396 SGD
$1,089 USD
View
Price last confirmed 22 days ago
Retailer 9
-
$1,396 SGD
$1,089 USD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$1,396 SGD
$1,089 USD
View
Retailer 11
-
$1,396 SGD
$1,089 USD
View
Price last confirmed 14 days ago
Retailer 12
-
$1,396 SGD
$1,089 USD
View
Price last confirmed 18 days ago
Retailer 13
-
$1,396 SGD
$1,089 USD
View
Price last confirmed 21 days ago
A
Retailer 14
-
$1,396 SGD
$1,089 USD
View
Retailer 15
-
$1,429 SGD
$1,115 USD
View
Price last confirmed 36 days ago
B+
Retailer 16
-
$1,444 SGD
View
Retailer 17
-
$1,450 SGD
$1,131 USD
View
Price last confirmed 14 days ago
Retailer 18
-
$1,450 SGD
$1,131 USD
View
Price last confirmed 30 days ago
B+
Retailer 19
-
$1,450 SGD
$1,131 USD
View
B+
Retailer 20
-
$1,462 SGD
$1,141 USD
View
B+
Retailer 21
-
$1,581 SGD
£971 GBP
View
Retailer 22
-
$1,610 SGD
$1,256 USD
View
Price last confirmed 38 days ago
Retailer 23
-
$1,610 SGD
$1,256 USD
View
Price last confirmed 9 days ago
Retailer 24
-
$1,610 SGD
$1,256 USD
View
Price last confirmed 21 days ago
Retailer 25
-
$1,610 SGD
$1,256 USD
View
Price last confirmed 30 days ago
B+
Retailer 26
-
$1,652 SGD
£1,015 GBP
View
B
Retailer 27
-
$2,570 SGD
£1,579 GBP
View
Retailer 28
-
$3,403 SGD
$2,655 USD
View
Price last confirmed 38 days ago
Retailer 29
-
$3,403 SGD
$2,655 USD
View
Price last confirmed 21 days ago
Retailer 30
-
$3,403 SGD
$2,655 USD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
ce7d2ecf-52c7-4f0a-9b30-a7f1cce9af9d · Oct 20
$3,403 SGD
$2,655 USD
View
Price last confirmed 9 days ago
30 more retailers have this diamond
Prices start from $1,034 SGDSave up to $1,537 SGD

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
$1,034 SGD