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Round|Natural|GIA

1.00ct J IF Round Natural Diamond

EX • J/IF • GIA 6442230663

Certificate GIA 6442230663

Diamond specifications and retailer prices

From £1,899 GBP
As of November 5, 2026
Save £2,536 GBP (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,435 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6442230663. Listed at 14 retailers as of November 5, 2026, with prices from £1,899 to £4,435, a £2,536 spread on the same certified stone. NZ Jewellers lists it at £4,435. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle33°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6442230663
Dimensions6.52 × 6.57 × 3.86 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.52 mm6.57 mm1.00 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6442230663
Side View
Table 62.0%Crown 33°Girdle: STK-MEDPavilion 41.4°Culet: NoneDepth 58.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £2,232 GBP|Low: £1,870 GBP|High: £3,761 GBP|Avg: £2,491 GBP|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7£1,958 GBP
Retailer 6£2,005 GBP
Retailer 1£2,232 GBP
Retailer 8£2,376 GBP
Retailer 4£2,467 GBP
Retailer 2£2,476 GBP
Retailer 3£2,589 GBP
Retailer 5£3,706 GBP

44 data points across 8 retailers

14 retailers£1,899 GBP to £4,435 GBP

A
Cheapest Retailer
-
£1,899 GBP
A
Retailer 2
-
£1,958 GBP
View
Final sale: no returns
A
Retailer 3
-
£2,005 GBP
View
A
Retailer 4
-
£2,077 GBP
View
Retailer 5
-
£2,121 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£2,232 GBP
View
Retailer 7
-
£2,376 GBP
View
Price last confirmed 30 days ago
B+
Retailer 8
-
£2,414 GBP
View
B+
Retailer 9
-
£2,447 GBP
View
B+
Retailer 10
-
£2,467 GBP
View
B+
Retailer 11
-
£2,476 GBP
View
B+
Retailer 12
-
£2,589 GBP
View
B
Retailer 13
-
£3,706 GBP
View
Most Expensive
B
NZ Jewellers
1a70ee3c-dd16-48e6-ba5c-7cc9d739e857 · Nov 5
£4,435 GBP
$5,969 USD
View
13 more retailers have this diamond
Prices start from £1,899 GBPSave up to £2,536 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.

A
1.00ct Round
£1,899 GBP