CaratHunter
Plans
Round|Natural|GIA

0.90ct J I1 Round Natural Diamond

EX • J/I1 • GIA 6542434678

Certificate GIA 6542434678

Diamond specifications and retailer prices

From £840 GBP
$1,125 USD
As of October 30, 2026
Save £916 GBP (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,148 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 I1 clarity (included), with a top-tier cut grade and certified by GIA 6542434678. Listed at 10 retailers as of October 30, 2026, with a 109% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.90
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542434678
Dimensions6.21 × 6.17 × 3.80 mm
L/W Ratio1.01
Star length50%
Top View
6.21 mm6.17 mm0.90 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542434678
Side View
Table 60.0%Crown 32.5°Girdle: MED-STKPavilion 41.6°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 30
Current: £3,148 GBP|Low: £656 GBP|High: £3,148 GBP|Avg: £1,348 GBP|+53.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7£840 GBP
Retailer 3£937 GBP
Retailer 8£1,084 GBP
Retailer 4£1,169 GBP
Retailer 10£1,169 GBP
Retailer 9£1,196 GBP
Retailer 5£1,223 GBP
Retailer 11£1,349 GBP
Retailer 6£1,470 GBP
Retailer 2£1,755 GBP
NZ Jewellers£3,148 GBP

10 data points across 11 retailers

10 retailers£840 GBP to £1,755 GBP

B+
Cheapest Retailer
-
£840 GBP
$1,125 USD
B
Retailer 2
-
£1,084 GBP
$1,452 USD
View
B
Retailer 3
-
£1,169 GBP
$1,567 USD
View
B
Retailer 4
-
£1,169 GBP
$1,567 USD
View
B
Retailer 5
-
£1,196 GBP
$1,603 USD
View
B
Retailer 6
-
£1,223 GBP
$1,639 USD
View
B
Retailer 7
-
£1,349 GBP
$1,808 USD
View
B
Retailer 8
-
£1,470 GBP
$1,969 USD
View
B
Retailer 9
-
£1,755 GBP
€2,240 EUR
View
Most Expensive
NZ Jewellers
2acc58e5-3176-4cfd-9104-4e11c9c7254c · Oct 30
£3,148 GBP
$4,218 USD
View
Price under review
9 more retailers have this diamond
Prices start from £840 GBPSave up to £916 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
£840 GBP