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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 $1,635 NZD
HK$7,200 HKD
As of October 30, 2026
Save $3,968 NZD (71%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,603 NZD 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 $1,635 to $5,603, a $3,968 spread on the same certified stone. Moon Ocean lists it at $5,603. 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: $5,603 NZD|Low: $1,469 NZD|High: $5,663 NZD|Avg: $2,704 NZD
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 8$1,635 NZD
Retailer 5$1,757 NZD
Retailer 6$1,803 NZD
Retailer 9$1,957 NZD
Retailer 7$2,032 NZD
Retailer 3$2,450 NZD
Retailer 2$2,683 NZD
Retailer 4$3,975 NZD
Moon Ocean$5,603 NZD

42 data points across 9 retailers

17 retailers$1,635 NZD to $5,603 NZD

A
Cheapest Retailer
-
$1,635 NZD
HK$7,200 HKD
A
Retailer 2
-
$1,757 NZD
$990 USD
View
B+
Retailer 3
-
$1,803 NZD
$1,016 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,936 NZD
$1,091 USD
View
B+
Retailer 5
-
$1,955 NZD
$1,102 USD
View
B+
Retailer 6
-
$1,955 NZD
$1,102 USD
View
B+
Retailer 7
-
$1,957 NZD
$1,103 USD
View
B+
Retailer 8
-
$2,032 NZD
$1,145 USD
View
B+
Retailer 9
-
$2,257 NZD
$1,272 USD
View
B+
Retailer 10
-
$2,360 NZD
$1,330 USD
View
B+
Retailer 11
-
$2,360 NZD
$1,330 USD
View
B+
Retailer 12
-
$2,431 NZD
$1,370 USD
View
B+
Retailer 13
-
$2,450 NZD
£1,087 GBP
View
B
Retailer 14
-
$2,683 NZD
€1,440 EUR
View
B
Retailer 15
-
$3,975 NZD
£1,764 GBP
View
C
Retailer 16
-
$5,264 NZD
$2,967 USD
View
Most Expensive
B
Moon Ocean
NVN-F4489A766-820 · Oct 30
$5,603 NZD
£2,487 GBP
View
16 more retailers have this diamond
Prices start from $1,635 NZDSave up to $3,968 NZD

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
$1,635 NZD