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Round|Natural|GIA

0.90ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7478966950

Certificate GIA 7478966950

Diamond specifications and retailer prices

From £1,164 GBP
$1,550 USD
As of October 25, 2026
Save £1,438 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,603 GBP 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 7478966950. Listed at 17 retailers as of October 25, 2026, with a 124% 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
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7478966950
Dimensions6.16 × 6.12 × 3.83 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.16 mm6.12 mm0.90 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7478966950
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: £3,603 GBP|Low: £1,060 GBP|High: £3,603 GBP|Avg: £1,777 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 7£1,164 GBP
Retailer 8£1,235 GBP
Retailer 6£1,291 GBP
Retailer 3£1,338 GBP
Retailer 10£1,338 GBP
Retailer 9£1,400 GBP
Retailer 11£1,544 GBP
Retailer 4£1,611 GBP
Retailer 2£1,892 GBP
Retailer 5£2,602 GBP
NZ Jewellers£3,603 GBP

39 data points across 11 retailers

17 retailers£1,164 GBP to £2,602 GBP

B+
Cheapest Retailer
-
£1,164 GBP
$1,550 USD
B+
Retailer 2
-
£1,194 GBP
$1,590 USD
View
B
Retailer 3
-
£1,220 GBP
$1,624 USD
View
B
Retailer 4
-
£1,235 GBP
$1,644 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,291 GBP
$1,719 USD
View
B
Retailer 6
-
£1,338 GBP
$1,782 USD
View
B
Retailer 7
-
£1,338 GBP
$1,782 USD
View
B
Retailer 8
-
£1,390 GBP
$1,851 USD
View
B
Retailer 9
-
£1,400 GBP
$1,865 USD
View
B
Retailer 10
-
£1,544 GBP
$2,056 USD
View
B
Retailer 11
-
£1,547 GBP
$2,060 USD
View
B
Retailer 12
-
£1,547 GBP
$2,060 USD
View
B
Retailer 13
-
£1,599 GBP
$2,130 USD
View
B
Retailer 14
-
£1,611 GBP
View
B
Retailer 15
-
£1,892 GBP
€2,400 EUR
View
B
Retailer 16
-
£2,602 GBP
View
Most Expensive
NZ Jewellers
49f959b0-f7f5-47b8-8a4e-2a8454af122e · Oct 30
£3,603 GBP
$4,798 USD
View
Price under review
16 more retailers have this diamond
Prices start from £1,164 GBPSave up to £1,438 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
£1,164 GBP