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Radiant|Natural|GIA

1.20ct H SI1 Radiant Natural Diamond

GD • H/SI1 • GIA 6452467702

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate GIA 6452467702

Diamond specifications and retailer prices

From £3,627 GBP
As of November 4, 2026
Save £1,448 GBP (29%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £6,608 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6452467702. Listed at 8 retailers as of November 4, 2026, with a 40% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6452467702
Dimensions6.58 × 5.52 × 3.34 mm
L/W Ratio1.19
Top View
6.58 mm5.52 mm1.20 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6452467702
Side View
Table 75.0%CrownGirdle: VTK-POLPavilionCulet: NoneDepth 60.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £6,608 GBP|Low: £3,540 GBP|High: £6,705 GBP|Avg: £4,438 GBP|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 9£3,579 GBP
Retailer 8£3,627 GBP
Retailer 6£3,733 GBP
Retailer 7£4,160 GBP
Retailer 5£4,166 GBP
Retailer 2£4,426 GBP
Retailer 3£4,681 GBP
Retailer 4£5,075 GBP
MOH London£6,608 GBP

33 data points across 9 retailers

8 retailers£3,627 GBP to £5,075 GBP

B
Cheapest Retailer
-
£3,627 GBP
B
Retailer 2
-
£3,733 GBP
View
Retailer 3
-
£4,160 GBP
View
Price last confirmed 9 days ago
Retailer 4
-
£4,166 GBP
View
Price last confirmed 29 days ago
C
Retailer 5
-
£4,426 GBP
View
B
Retailer 6
-
£4,681 GBP
View
C
Retailer 7
-
£5,075 GBP
View
Most Expensive
MOH London
7CFFCE946 · Nov 4
£6,608 GBP
View
Price under review
7 more retailers have this diamond
Prices start from £3,627 GBPSave up to £1,448 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.

B
1.20ct Radiant
£3,627 GBP