Round|Natural|GIA

1.02ct J IF Round Natural Diamond

EX • J/IF • GIA 5242085595

Certificate GIA 5242085595

Diamond specifications and retailer prices

From £1,778 GBP
As of November 6, 2026
Save £2,234 GBP (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,312 GBP at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct 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 5242085595. Listed at 15 retailers as of November 4, 2026, with a 126% 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

1.02
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5242085595
Dimensions6.39 × 6.42 × 3.99 mm
L/W Ratio1.00
Top View
6.39 mm6.42 mm1.02 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242085595
Side View
Table 56.0%CrownGirdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

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 6
Current: £4,232 GBP|Low: £1,778 GBP|High: £4,312 GBP|Avg: £2,827 GBP|-1.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8£1,778 GBP
Retailer 2£2,143 GBP
Retailer 11£2,169 GBP
Retailer 3£2,429 GBP
Retailer 5£2,469 GBP
Retailer 12£2,522 GBP
Retailer 9£2,601 GBP
Retailer 6£2,751 GBP
Retailer 10£2,848 GBP
Retailer 4£3,713 GBP
Retailer 7£4,012 GBP
NZ Jewellers£4,232 GBP

24 data points across 12 retailers

15 retailers£1,778 GBP to £4,012 GBP

A
Cheapest Retailer
-
£1,778 GBP
A
Retailer 2
-
£2,143 GBP
View
A
Retailer 3
-
£2,169 GBP
View
Retailer 4
-
£2,429 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£2,469 GBP
View
Retailer 6
-
£2,475 GBP
View
Price last confirmed 23 days ago
Retailer 7
-
£2,522 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£2,571 GBP
View
Price last confirmed 22 days ago
B+
Retailer 9
-
£2,601 GBP
View
B+
Retailer 10
-
£2,751 GBP
View
B+
Retailer 11
-
£2,848 GBP
View
Retailer 12
-
£3,713 GBP
View
Price last confirmed 16 days ago
B
Retailer 13
-
£4,012 GBP
View
Retailer 14
-
£4,232 GBP
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
53dc134a-3639-43fc-afbf-9ba16cfb740d · Oct 14
£4,312 GBP
$5,804 USD
View
Price last confirmed 23 days ago
14 more retailers have this diamond
Prices start from £1,778 GBPSave up to £2,234 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
1.02ct Round
£1,778 GBP