Round|Natural|GIA

0.90ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 1427157820

Certificate GIA 1427157820

Diamond specifications and retailer prices

From $922 USD
HK$7,200 HKD
As of October 29, 2026
Save $2,245 USD (71%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,167 USD at Moon Ocean · As of October 29, 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 29, 2026, with prices from $922 to $3,167, a $2,245 spread on the same certified stone. Moon Ocean lists it at $3,167. 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
Color
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 29
Current: $3,167 USD|Low: $828 USD|High: $3,192 USD|Avg: $1,559 USD|+0.3%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 7$922 USD
Retailer 5$990 USD
Retailer 6$1,016 USD
Retailer 8$1,103 USD
Retailer 2$1,376 USD
Retailer 4$1,510 USD
Retailer 3$2,240 USD
Moon Ocean$3,167 USD

43 data points across 8 retailers

17 retailers$922 USD to $3,167 USD

A
Cheapest Retailer
-
$922 USD
HK$7,200 HKD
A
Retailer 2
-
$990 USD
View
B+
Retailer 3
-
$1,016 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,091 USD
View
B+
Retailer 5
-
$1,102 USD
View
B+
Retailer 6
-
$1,102 USD
View
B+
Retailer 7
-
$1,103 USD
View
B+
Retailer 8
-
$1,145 USD
View
B+
Retailer 9
-
$1,272 USD
View
B+
Retailer 10
-
$1,330 USD
View
B+
Retailer 11
-
$1,330 USD
View
B+
Retailer 12
-
$1,370 USD
View
B+
Retailer 13
-
$1,376 USD
£1,084 GBP
View
B
Retailer 14
-
$1,510 USD
€1,438 EUR
View
B
Retailer 15
-
$2,240 USD
£1,764 GBP
View
C
Retailer 16
-
$2,967 USD
View
Most Expensive
B
Moon Ocean
NVN-F4489A766-820 · Oct 29
$3,167 USD
£2,494 GBP
View
16 more retailers have this diamond
Prices start from $922 USDSave up to $2,245 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
$922 USD