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Round|Natural|GIA

0.90ct J SI2 Round Natural Diamond

GD • J/SI2 • GIA 6342303352

Certificate GIA 6342303352

Diamond specifications and retailer prices

From £663 GBP
HK$6,900 HKD
As of October 29, 2026
Save £1,682 GBP (72%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,345 GBP 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 standard cut grade and certified by GIA 6342303352. Listed at 16 retailers as of October 29, 2026, with prices from £663 to £2,345, a £1,682 spread on the same certified stone. Moon Ocean lists it at £2,345. 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
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6342303352
Dimensions5.95 × 5.90 × 3.92 mm
L/W Ratio1.01
Top View
5.95 mm5.90 mm0.90 ctJ / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6342303352
Side View
Table 53.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 66.1%

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 29
Current: £2,345 GBP|Low: £663 GBP|High: £2,412 GBP|Avg: £1,137 GBP|-2.8%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 6£663 GBP
Retailer 5£831 GBP
Retailer 7£834 GBP
Retailer 9£853 GBP
Retailer 4£863 GBP
Retailer 13£901 GBP
Retailer 17£901 GBP
Retailer 8£932 GBP
Retailer 14£936 GBP
Retailer 15£944 GBP
Retailer 16£1,002 GBP
Retailer 2£1,019 GBP
Retailer 3£1,039 GBP
Retailer 11£1,253 GBP
Retailer 10£1,331 GBP
Retailer 12£1,653 GBP
Retailer 18£2,197 GBP
Moon Ocean£2,345 GBP

24 data points across 18 retailers

16 retailers£663 GBP to £2,345 GBP

B+
Cheapest Retailer
-
£663 GBP
HK$6,900 HKD
B+
Retailer 2
-
£831 GBP
$1,106 USD
View
Final sale: no returns
B+
Retailer 3
-
£834 GBP
$1,110 USD
View
B+
Retailer 4
-
£863 GBP
$1,149 USD
View
B+
Retailer 5
-
£901 GBP
$1,200 USD
View
B+
Retailer 6
-
£901 GBP
$1,200 USD
View
B+
Retailer 7
-
£932 GBP
SGD 1,677 SGD
View
B+
Retailer 8
-
£936 GBP
$1,246 USD
View
B+
Retailer 9
-
£944 GBP
$1,257 USD
View
B
Retailer 10
-
£1,002 GBP
$1,334 USD
View
B
Retailer 11
-
£1,019 GBP
View
B
Retailer 12
-
£1,039 GBP
$1,384 USD
View
B
Retailer 13
-
£1,253 GBP
€1,589 EUR
View
B
Retailer 14
-
£1,653 GBP
View
C
Retailer 15
-
£2,197 GBP
$2,926 USD
View
Most Expensive
C
Moon Ocean
NVN-2919BC674-352 · Oct 29
£2,345 GBP
View
15 more retailers have this diamond
Prices start from £663 GBPSave up to £1,682 GBP

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
£663 GBP