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Round|Natural|GIA

0.90ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1455851206

Certificate GIA 1455851206

Diamond specifications and retailer prices

From $1,871 SGD
$1,460 USD
As of October 25, 2026
Save $2,104 SGD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,504 SGD 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: $3,975 SGD|Low: $1,573 SGD|High: $4,001 SGD|Avg: $2,450 SGD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 4$1,871 SGD
Retailer 5$1,887 SGD
Retailer 7$1,993 SGD
Retailer 6$2,087 SGD
Retailer 8$2,141 SGD
Retailer 3$2,183 SGD
Retailer 2$3,076 SGD
Retailer 9$3,245 SGD
Retailer 1$3,975 SGD

38 data points across 9 retailers

17 retailers$1,871 SGD to $3,975 SGD

B+
Cheapest Retailer
-
$1,871 SGD
$1,460 USD
B+
Retailer 2
-
$1,887 SGD
$1,472 USD
View
Final sale: no returns
B+
Retailer 3
-
$1,894 SGD
$1,478 USD
View
B+
Retailer 4
-
$1,973 SGD
$1,539 USD
View
B
Retailer 5
-
$2,044 SGD
$1,595 USD
View
B
Retailer 6
-
$2,044 SGD
$1,595 USD
View
B
Retailer 7
-
$2,087 SGD
$1,628 USD
View
B+
Retailer 8
-
$2,139 SGD
$1,669 USD
View
B+
Retailer 9
-
$2,141 SGD
$1,671 USD
View
B+
Retailer 10
-
$2,183 SGD
£1,341 GBP
View
B
Retailer 11
-
$2,307 SGD
$1,800 USD
View
B
Retailer 12
-
$2,307 SGD
$1,800 USD
View
B
Retailer 13
-
$2,358 SGD
$1,840 USD
View
B
Retailer 14
-
$2,384 SGD
$1,860 USD
View
B
Retailer 15
-
$3,076 SGD
€2,286 EUR
View
B
Retailer 16
-
$3,975 SGD
£2,442 GBP
View
Most Expensive
NZ Jewellers
4bc21d95-6706-46f4-af1d-e750ebd3172e · Oct 30
$5,504 SGD
$4,294 USD
View
Price under review
16 more retailers have this diamond
Prices start from $1,871 SGDSave up to $2,104 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.

B+
0.90ct Round
$1,871 SGD