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Radiant|Natural|GIA

1.20ct E SI2 Radiant Natural Diamond

VG • E/SI2 • GIA 2566691646

Certificate GIA 2566691646

Diamond specifications and retailer prices

From £2,020 GBP
As of November 4, 2026
Save £1,822 GBP (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,842 GBP at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2566691646. Listed at 11 retailers as of November 4, 2026, with prices from £2,020 to £3,842, a £1,822 spread on the same certified stone. Helzberg Diamonds lists it at £3,842. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566691646
Dimensions7.00 × 5.39 × 3.71 mm
L/W Ratio1.30
Culet sizeNone
Top View
7.00 mm5.39 mm1.20 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566691646
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.8%

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: £3,842 GBP|Low: £2,020 GBP|High: £3,842 GBP|Avg: £2,666 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 7£2,020 GBP
Retailer 5£2,069 GBP
Retailer 3£2,178 GBP
Retailer 6£2,197 GBP
Retailer 2£2,359 GBP
Retailer 11£2,433 GBP
Retailer 8£2,601 GBP
Retailer 10£2,667 GBP
Retailer 4£2,691 GBP
Retailer 9£3,649 GBP
Helzberg Diamonds£3,842 GBP

16 data points across 11 retailers

11 retailers£2,020 GBP to £3,842 GBP

A
Cheapest Retailer
-
£2,020 GBP
A
Retailer 2
-
£2,069 GBP
View
A
Retailer 3
-
£2,178 GBP
View
A
Retailer 4
-
£2,197 GBP
View
B+
Retailer 5
-
£2,359 GBP
View
B+
Retailer 6
-
£2,433 GBP
View
B+
Retailer 7
-
£2,601 GBP
View
B+
Retailer 8
-
£2,667 GBP
View
B+
Retailer 9
-
£2,691 GBP
View
B
Retailer 10
-
£3,649 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRILMMMPHMKM · Nov 6
£3,842 GBP
$5,143 USD
View
10 more retailers have this diamond
Prices start from £2,020 GBPSave up to £1,822 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
£2,020 GBP