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Radiant|Natural|GIA

1.03ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 6511809908

Certificate GIA 6511809908

Diamond specifications and retailer prices

From £1,130 GBP
As of November 5, 2026
Save £111 GBP (9%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,240 GBP at Jared · As of November 6, 2026
View at Jared

About this 1.03ct natural radiant diamond

This 1.03ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6511809908. Listed at 4 retailers as of November 5, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.03
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6511809908
Dimensions6.51 × 5.04 × 3.50 mm
L/W Ratio1.29
Top View
6.51 mm5.04 mm1.03 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6511809908
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.5%

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: £1,240 GBP|Low: £1,130 GBP|High: £1,588 GBP|Avg: £1,357 GBP|-6.7%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 26, 2026
Retailer 2£1,130 GBP
Retailer 3£1,203 GBP
Retailer 4£1,203 GBP
Jared£1,240 GBP
Retailer 5£1,240 GBP
Retailer 6£1,588 GBP

14 data points across 6 retailers

4 retailers£1,130 GBP to £1,240 GBP

A
Cheapest Retailer
-
£1,130 GBP
B+
Retailer 2
-
£1,203 GBP
View
B+
Retailer 3
-
£1,203 GBP
View
Most Expensive
B+
Jared
154180088 · Nov 6
£1,240 GBP
$1,660 USD
View
3 more retailers have this diamond
Prices start from £1,130 GBPSave up to £111 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
1.03ct Radiant
£1,130 GBP