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Round|Natural|GIA

0.90ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 1427157820

Certificate GIA 1427157820

Diamond specifications and retailer prices

From $1,181 SGD
HK$7,200 HKD
As of October 30, 2026
Save $2,866 SGD (71%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,048 SGD at Moon Ocean · As of October 30, 2026
View at Moon Ocean

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 very-good cut grade and certified by GIA 1427157820. Listed at 17 retailers as of October 30, 2026, with prices from $1,181 to $4,048, a $2,866 spread on the same certified stone. Moon Ocean lists it at $4,048. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.90
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 1427157820
Dimensions6.05 × 5.97 × 3.87 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cavity
Top View
6.05 mm5.97 mm0.90 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1427157820
Side View
Table 57.0%Crown 38°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 64.4%

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 30
Current: $4,048 SGD|Low: $1,061 SGD|High: $4,091 SGD|Avg: $2,004 SGD
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 7$1,181 SGD
Retailer 5$1,269 SGD
Retailer 6$1,302 SGD
Retailer 8$1,414 SGD
Retailer 2$1,769 SGD
Retailer 4$1,935 SGD
Retailer 3$2,871 SGD
Moon Ocean$4,048 SGD

42 data points across 8 retailers

17 retailers$1,181 SGD to $4,048 SGD

A
Cheapest Retailer
-
$1,181 SGD
HK$7,200 HKD
A
Retailer 2
-
$1,269 SGD
$990 USD
View
B+
Retailer 3
-
$1,302 SGD
$1,016 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,398 SGD
$1,091 USD
View
B+
Retailer 5
-
$1,412 SGD
$1,102 USD
View
B+
Retailer 6
-
$1,412 SGD
$1,102 USD
View
B+
Retailer 7
-
$1,414 SGD
$1,103 USD
View
B+
Retailer 8
-
$1,468 SGD
$1,145 USD
View
B+
Retailer 9
-
$1,630 SGD
$1,272 USD
View
B+
Retailer 10
-
$1,705 SGD
$1,330 USD
View
B+
Retailer 11
-
$1,705 SGD
$1,330 USD
View
B+
Retailer 12
-
$1,756 SGD
$1,370 USD
View
B+
Retailer 13
-
$1,769 SGD
£1,087 GBP
View
B
Retailer 14
-
$1,935 SGD
€1,438 EUR
View
B
Retailer 15
-
$2,871 SGD
£1,764 GBP
View
C
Retailer 16
-
$3,803 SGD
$2,967 USD
View
Most Expensive
B
Moon Ocean
NVN-F4489A766-820 · Oct 30
$4,048 SGD
£2,487 GBP
View
16 more retailers have this diamond
Prices start from $1,181 SGDSave up to $2,866 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
$1,181 SGD