Round|Natural|GIA

0.90ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5483389951

Certificate GIA 5483389951

Diamond specifications and retailer prices

From £1,024 GBP
$1,363 USD
As of October 28, 2026
Save £1,964 GBP (66%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £2,988 GBP at NZ Jewellers · As of October 20, 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 5483389951. Listed at 28 retailers as of October 27, 2026, with a 192% 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
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5483389951
Dimensions6.19 × 6.15 × 3.79 mm
L/W Ratio1.01
Top View
6.19 mm6.15 mm0.90 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5483389951
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.4%

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 28
Current: £1,678 GBP|Low: £939 GBP|High: £2,172 GBP|Avg: £1,418 GBP|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 7£1,024 GBP
Retailer 4£1,110 GBP
Retailer 6£1,147 GBP
Retailer 2£1,361 GBP
Retailer 5£1,459 GBP
Retailer 1£1,678 GBP
Retailer 3£2,158 GBP

42 data points across 7 retailers

28 retailers£1,024 GBP to £2,988 GBP

B+
Cheapest Retailer
-
£1,024 GBP
$1,363 USD
Final sale: no returns
B+
Retailer 2
-
£1,029 GBP
$1,370 USD
View
B+
Retailer 3
-
£1,071 GBP
$1,426 USD
View
B+
Retailer 4
-
£1,110 GBP
$1,478 USD
View
B+
Retailer 5
-
£1,110 GBP
$1,478 USD
View
Price last confirmed 52 days ago
B+
Retailer 6
-
£1,110 GBP
$1,478 USD
View
Price last confirmed 42 days ago
B+
Retailer 7
-
£1,110 GBP
$1,478 USD
View
Price last confirmed 20 days ago
B+
Retailer 8
-
£1,110 GBP
$1,478 USD
View
Price last confirmed 13 days ago
B+
Retailer 9
-
£1,110 GBP
$1,478 USD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
£1,147 GBP
$1,527 USD
View
B+
Retailer 11
-
£1,161 GBP
$1,546 USD
View
Price last confirmed 30 days ago
B+
Retailer 12
-
£1,170 GBP
$1,558 USD
View
B+
Retailer 13
-
£1,269 GBP
$1,690 USD
View
B+
Retailer 14
-
£1,269 GBP
$1,690 USD
View
B+
Retailer 15
-
£1,280 GBP
$1,705 USD
View
Price last confirmed 52 days ago
B+
Retailer 16
-
£1,280 GBP
$1,705 USD
View
Price last confirmed 20 days ago
B+
Retailer 17
-
£1,280 GBP
$1,705 USD
View
Price last confirmed 37 days ago
B+
Retailer 18
-
£1,280 GBP
$1,705 USD
View
Price last confirmed 8 days ago
B+
Retailer 19
-
£1,280 GBP
$1,705 USD
View
B
Retailer 20
-
£1,307 GBP
$1,740 USD
View
B+
Retailer 21
-
£1,361 GBP
View
B
Retailer 22
-
£1,459 GBP
View
B
Retailer 23
-
£1,678 GBP
€2,128 EUR
View
B
Retailer 24
-
£2,158 GBP
View
B
Retailer 25
-
£2,988 GBP
$3,979 USD
View
Price last confirmed 39 days ago
B
Retailer 26
-
£2,988 GBP
$3,979 USD
View
Price last confirmed 31 days ago
B
Retailer 27
-
£2,988 GBP
$3,979 USD
View
Most Expensive
B
NZ Jewellers
64339355-837a-4eda-9d2e-b3f0e22d79bd · Oct 20
£2,988 GBP
$3,979 USD
View
Price last confirmed 9 days ago
27 more retailers have this diamond
Prices start from £1,024 GBPSave up to £1,964 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
£1,024 GBP