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Radiant|Natural|GIA

1.20ct H SI2 Radiant Natural Diamond

VG • H/SI2 • GIA 1563045421

Certificate GIA 1563045421

Diamond specifications and retailer prices

From £1,423 GBP
As of November 4, 2026
Save £1,734 GBP (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,157 GBP at MOH London · As of November 4, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1563045421. Listed at 14 retailers as of November 4, 2026, with prices from £1,423 to £3,157, a £1,734 spread on the same certified stone. MOH London lists it at £3,157. 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
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1563045421
Dimensions7.04 × 5.23 × 3.65 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Indented Natural, Feather, Knot, Cloud, Cavity, Needle, Natural
Top View
7.04 mm5.23 mm1.20 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1563045421
Side View
Table 64.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 69.8%

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: £3,157 GBP|Low: £1,423 GBP|High: £3,277 GBP|Avg: £1,906 GBP|-3.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6£1,423 GBP
Retailer 2£1,510 GBP
Retailer 10£1,611 GBP
Retailer 8£1,629 GBP
Retailer 7£1,677 GBP
Retailer 3£1,776 GBP
Retailer 5£1,911 GBP
Retailer 9£1,935 GBP
Retailer 4£2,128 GBP
MOH London£3,157 GBP

28 data points across 10 retailers

14 retailers£1,423 GBP to £3,157 GBP

A
Cheapest Retailer
-
£1,423 GBP
A
Retailer 2
-
£1,510 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,611 GBP
View
A
Retailer 4
-
£1,629 GBP
View
A
Retailer 5
-
£1,677 GBP
View
B+
Retailer 6
-
£1,776 GBP
View
B+
Retailer 7
-
£1,815 GBP
View
Retailer 8
-
£1,848 GBP
View
Price last confirmed 30 days ago
Retailer 9
-
£1,848 GBP
View
Price last confirmed 31 days ago
B+
Retailer 10
-
£1,911 GBP
View
B+
Retailer 11
-
£1,935 GBP
View
Retailer 12
-
£1,978 GBP
View
Price last confirmed 38 days ago
B+
Retailer 13
-
£2,128 GBP
View
Most Expensive
B
MOH London
2EB7184FF · Nov 4
£3,157 GBP
View
13 more retailers have this diamond
Prices start from £1,423 GBPSave up to £1,734 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
£1,423 GBP