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Radiant|Natural|GIA

1.20ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 6552456281

Certificate GIA 6552456281

Diamond specifications and retailer prices

From £1,845 GBP
As of November 4, 2026
Save £1,765 GBP (49%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,610 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552456281. Listed at 13 retailers as of November 2, 2026, with prices from £1,845 to £3,610, a £1,765 spread on the same certified stone. MOH London lists it at £3,610. 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

1.20
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552456281
Dimensions5.85 × 5.73 × 3.87 mm
L/W Ratio1.02
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
5.85 mm5.73 mm1.20 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552456281
Side View
Table 63.0%CrownGirdle: Very ThickPavilionCulet: NDepth 67.5%

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: £3,610 GBP|Low: £1,845 GBP|High: £3,654 GBP|Avg: £2,344 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9£1,845 GBP
Retailer 10£1,985 GBP
Retailer 6£2,025 GBP
Retailer 7£2,140 GBP
Retailer 2£2,181 GBP
Retailer 5£2,286 GBP
Retailer 8£2,309 GBP
Retailer 3£2,398 GBP
Retailer 4£2,515 GBP
MOH London£3,610 GBP

46 data points across 10 retailers

13 retailers£1,845 GBP to £3,610 GBP

A
Cheapest Retailer
-
£1,845 GBP
A
Retailer 2
-
£1,985 GBP
View
A
Retailer 3
-
£2,025 GBP
View
A
Retailer 4
-
£2,140 GBP
View
A
Retailer 5
-
£2,166 GBP
View
A
Retailer 6
-
£2,181 GBP
View
A
Retailer 7
-
£2,286 GBP
View
Retailer 8
-
£2,309 GBP
View
Price last confirmed 31 days ago
B+
Retailer 9
-
£2,353 GBP
View
B+
Retailer 10
-
£2,368 GBP
View
B+
Retailer 11
-
£2,398 GBP
View
B+
Retailer 12
-
£2,515 GBP
View
Most Expensive
B
MOH London
82E0605D6 · Nov 2
£3,610 GBP
View
12 more retailers have this diamond
Prices start from £1,845 GBPSave up to £1,765 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
1.20ct Radiant
£1,845 GBP