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Round|Natural|GIA

1.02ct J IF Round Natural Diamond

EX • J/IF • GIA 1509843895

Certificate GIA 1509843895

Diamond specifications and retailer prices

From £1,988 GBP
As of November 4, 2026
Save £2,515 GBP (56%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,503 GBP at NZ Jewellers · As of November 5, 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 1509843895. Listed at 7 retailers as of November 4, 2026, with prices from £1,988 to £4,503, a £2,515 spread on the same certified stone. NZ Jewellers lists it at £4,503. 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
FluorescenceMedium
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1509843895
Dimensions6.45 × 6.46 × 4.00 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
6.45 mm6.46 mm1.02 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1509843895
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.9%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £2,514 GBP|Low: £1,568 GBP|High: £3,646 GBP|Avg: £2,491 GBP|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 4£1,988 GBP
Retailer 6£2,082 GBP
Retailer 3£2,383 GBP
Retailer 5£2,470 GBP
Retailer 1£2,514 GBP
Retailer 2£3,592 GBP

21 data points across 6 retailers

7 retailers£1,988 GBP to £4,503 GBP

A
Cheapest Retailer
-
£1,988 GBP
Final sale: no returns
A
Retailer 2
-
£2,082 GBP
View
B+
Retailer 3
-
£2,383 GBP
View
B+
Retailer 4
-
£2,470 GBP
View
B+
Retailer 5
-
£2,514 GBP
View
B
Retailer 6
-
£3,592 GBP
View
Most Expensive
B
NZ Jewellers
01c21a1a-df50-4617-8e89-d50c5c717b24 · Nov 5
£4,503 GBP
$6,061 USD
View
6 more retailers have this diamond
Prices start from £1,988 GBPSave up to £2,515 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
£1,988 GBP