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Round|Natural|GIA

1.02ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2454094065

Certificate GIA 2454094065

Diamond specifications and retailer prices

From £1,141 GBP
As of November 4, 2026
Save £2,188 GBP (66%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,329 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2454094065. Listed at 14 retailers as of November 4, 2026, with prices from £1,141 to £3,329, a £2,188 spread on the same certified stone. NZ Jewellers lists it at £3,329. 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

1.02
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2454094065
Dimensions6.54 × 6.52 × 3.95 mm
L/W Ratio1.00
Top View
6.54 mm6.52 mm1.02 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2454094065
Side View
Table 61.0%CrownGirdle: MED-SLIPavilionCulet: NoneDepth 60.5%

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: £3,329 GBP|Low: £1,106 GBP|High: £3,329 GBP|Avg: £1,562 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 14£1,141 GBP
Retailer 13£1,146 GBP
Retailer 3£1,193 GBP
Retailer 11£1,218 GBP
Retailer 4£1,236 GBP
Retailer 12£1,236 GBP
Retailer 6£1,271 GBP
Retailer 5£1,294 GBP
Retailer 2£1,306 GBP
Retailer 10£1,427 GBP
Retailer 7£1,507 GBP
Retailer 8£1,850 GBP
Retailer 9£2,385 GBP
NZ Jewellers£3,329 GBP

31 data points across 14 retailers

14 retailers£1,141 GBP to £3,329 GBP

A
Cheapest Retailer
-
£1,141 GBP
Final sale: no returns
A
Retailer 2
-
£1,146 GBP
View
A
Retailer 3
-
£1,193 GBP
View
A
Retailer 4
-
£1,218 GBP
View
A
Retailer 5
-
£1,236 GBP
View
Retailer 6
-
£1,236 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£1,271 GBP
View
A
Retailer 8
-
£1,294 GBP
View
A
Retailer 9
-
£1,306 GBP
View
B+
Retailer 10
-
£1,427 GBP
View
B+
Retailer 11
-
£1,507 GBP
View
B
Retailer 12
-
£1,850 GBP
View
B
Retailer 13
-
£2,385 GBP
View
Most Expensive
B
NZ Jewellers
eb79a307-c792-4301-bb59-c4db1a7f6ef4 · Nov 5
£3,329 GBP
$4,481 USD
View
13 more retailers have this diamond
Prices start from £1,141 GBPSave up to £2,188 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
£1,141 GBP