CaratHunter
Plans
Radiant|Natural|GIA

1.20ct E SI1 Radiant Natural Diamond

VG • E/SI1 • GIA 5563777556

Certificate GIA 5563777556

Diamond specifications and retailer prices

From £2,299 GBP
As of November 4, 2026
Save £2,074 GBP (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,373 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5563777556. Listed at 11 retailers as of November 4, 2026, with prices from £2,299 to £4,373, a £2,074 spread on the same certified stone. Helzberg Diamonds lists it at £4,373. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5563777556
Dimensions7.04 × 5.40 × 3.72 mm
L/W Ratio1.30
Culet sizeNone
Top View
7.04 mm5.40 mm1.20 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563777556
Side View
Table 68.0%CrownGirdle: MED-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: £4,373 GBP|Low: £2,299 GBP|High: £4,373 GBP|Avg: £3,144 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 10£2,299 GBP
Retailer 4£2,478 GBP
Retailer 7£2,483 GBP
Retailer 2£2,682 GBP
Retailer 3£2,770 GBP
Retailer 11£2,988 GBP
Retailer 6£3,065 GBP
Retailer 5£3,189 GBP
Retailer 8£3,878 GBP
Retailer 9£4,155 GBP
Helzberg Diamonds£4,373 GBP

4 data points across 11 retailers

11 retailers£2,299 GBP to £4,373 GBP

A
Cheapest Retailer
-
£2,299 GBP
B+
Retailer 2
-
£2,478 GBP
View
B+
Retailer 3
-
£2,483 GBP
View
B+
Retailer 4
-
£2,682 GBP
View
B+
Retailer 5
-
£2,770 GBP
View
B
Retailer 6
-
£2,988 GBP
View
B
Retailer 7
-
£3,065 GBP
View
B
Retailer 8
-
£3,189 GBP
View
B
Retailer 9
-
£3,878 GBP
View
B
Retailer 10
-
£4,155 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRLLMJNNNLLM · Nov 6
£4,373 GBP
$5,853 USD
View
10 more retailers have this diamond
Prices start from £2,299 GBPSave up to £2,074 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
£2,299 GBP