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Radiant|Natural|GIA

1.02ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 2245085527

Certificate GIA 2245085527

Diamond specifications and retailer prices

From £947 GBP
As of November 6, 2026
Save £2,194 GBP (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,140 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural radiant diamond

This 1.02ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245085527. Listed at 9 retailers as of November 5, 2026, with prices from £947 to £3,140, a £2,194 spread on the same certified stone. NZ Jewellers lists it at £3,140. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle57.96°
OriginNatural
Grading LabGIA
CertificateGIA 2245085527
Dimensions6.97 × 4.97 × 3.44 mm
L/W Ratio1.40
Key to symbols
Crystal, Knot, Cloud, Needle
Top View
6.97 mm4.97 mm1.02 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2245085527
Side View
Table 66.0%CrownGirdle: MED-STKPavilion 57.96°Culet: NoneDepth 69.2%

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 6
Current: £3,140 GBP|Low: £947 GBP|High: £3,263 GBP|Avg: £1,687 GBP|-3.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 8£947 GBP
Retailer 3£1,248 GBP
Retailer 9£1,287 GBP
Retailer 4£1,313 GBP
Retailer 2£1,329 GBP
Retailer 6£1,429 GBP
Retailer 5£1,977 GBP
Retailer 7£2,255 GBP
NZ Jewellers£3,140 GBP

22 data points across 9 retailers

9 retailers£947 GBP to £3,140 GBP

A
Cheapest Retailer
-
£947 GBP
A
Retailer 2
-
£1,248 GBP
View
B+
Retailer 3
-
£1,287 GBP
View
B+
Retailer 4
-
£1,313 GBP
View
B+
Retailer 5
-
£1,329 GBP
View
B+
Retailer 6
-
£1,429 GBP
View
B
Retailer 7
-
£1,977 GBP
View
B
Retailer 8
-
£2,255 GBP
View
Most Expensive
B
NZ Jewellers
b7b07ef0-7732-4e7b-be73-19d45009a439 · Nov 5
£3,140 GBP
$4,203 USD
View
8 more retailers have this diamond
Prices start from £947 GBPSave up to £2,194 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 Radiant
£947 GBP