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Radiant|Natural|GIA

1.20ct D SI2 Radiant Natural Diamond

VG • D/SI2 • GIA 7556663783

Certificate GIA 7556663783

Diamond specifications and retailer prices

From £2,146 GBP
As of November 4, 2026
Save £1,934 GBP (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,080 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 D 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 7556663783. Listed at 11 retailers as of November 4, 2026, with prices from £2,146 to £4,080, a £1,934 spread on the same certified stone. Helzberg Diamonds lists it at £4,080. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556663783
Dimensions7.10 × 5.39 × 3.71 mm
L/W Ratio1.32
Culet sizeNone
Top View
7.10 mm5.39 mm1.20 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556663783
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: 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: £4,080 GBP|Low: £2,146 GBP|High: £4,207 GBP|Avg: £2,885 GBP|-3.0%
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£2,146 GBP
Retailer 6£2,198 GBP
Retailer 8£2,313 GBP
Retailer 2£2,504 GBP
Retailer 11£2,585 GBP
Retailer 9£2,754 GBP
Retailer 10£2,812 GBP
Retailer 5£2,860 GBP
Retailer 4£2,978 GBP
Retailer 3£3,876 GBP
Helzberg Diamonds£4,080 GBP

36 data points across 11 retailers

11 retailers£2,146 GBP to £4,080 GBP

A
Cheapest Retailer
-
£2,146 GBP
A
Retailer 2
-
£2,198 GBP
View
A
Retailer 3
-
£2,313 GBP
View
B+
Retailer 4
-
£2,504 GBP
View
B+
Retailer 5
-
£2,585 GBP
View
B+
Retailer 6
-
£2,754 GBP
View
B+
Retailer 7
-
£2,812 GBP
View
B+
Retailer 8
-
£2,860 GBP
View
B+
Retailer 9
-
£2,978 GBP
View
B
Retailer 10
-
£3,876 GBP
View
Most Expensive
B
Helzberg Diamonds
XZRNLLMMMJNOJ · Nov 6
£4,080 GBP
$5,461 USD
View
10 more retailers have this diamond
Prices start from £2,146 GBPSave up to £1,934 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
£2,146 GBP