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Radiant|Natural|GIA

1.02ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 5186516272

Certificate GIA 5186516272

Diamond specifications and retailer prices

From £819 GBP
As of November 4, 2026
Save £904 GBP (52%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,723 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.02ct natural radiant diamond

This 1.02ct natural radiant sits in the classic one-carat band, graded I 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 5186516272. Listed at 9 retailers as of November 4, 2026, with prices from £819 to £1,723, a £904 spread on the same certified stone. MOH London lists it at £1,723. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5186516272
Dimensions6.31 × 5.03 × 3.55 mm
L/W Ratio1.25
Girdle conditionPolished
Culet sizeNone
Top View
6.31 mm5.03 mm1.02 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5186516272
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,723 GBP|Low: £819 GBP|High: £1,748 GBP|Avg: £1,127 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8£819 GBP
Retailer 6£826 GBP
Retailer 5£855 GBP
Retailer 9£935 GBP
Retailer 4£1,066 GBP
Retailer 3£1,151 GBP
Retailer 7£1,233 GBP
Retailer 2£1,310 GBP
MOH London£1,723 GBP

37 data points across 9 retailers

9 retailers£819 GBP to £1,723 GBP

A
Cheapest Retailer
-
£819 GBP
Retailer 2
-
£826 GBP
View
Price last confirmed 10 days ago
Retailer 3
-
£855 GBP
View
Price last confirmed 9 days ago
A
Retailer 4
-
£935 GBP
View
A
Retailer 5
-
£1,066 GBP
View
A
Retailer 6
-
£1,151 GBP
View
Retailer 7
-
£1,233 GBP
View
Price last confirmed 34 days ago
A
Retailer 8
-
£1,310 GBP
View
Most Expensive
B+
MOH London
5336C7C66 · Nov 4
£1,723 GBP
View
8 more retailers have this diamond
Prices start from £819 GBPSave up to £904 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
£819 GBP