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Radiant|Natural|GIA

1.20ct H SI1 Radiant Natural Diamond

GD • H/SI1 • GIA 1112367429

Certificate GIA 1112367429

Diamond specifications and retailer prices

From £1,615 GBP
As of November 5, 2026
Save £1,833 GBP (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,447 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 1112367429. Listed at 17 retailers as of November 4, 2026, with prices from £1,615 to £3,447, a £1,833 spread on the same certified stone. MOH London lists it at £3,447. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1112367429
Dimensions5.88 × 5.63 × 3.90 mm
L/W Ratio1.04
Culet sizeNone
Top View
5.88 mm5.63 mm1.20 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1112367429
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £3,447 GBP|Low: £1,650 GBP|High: £3,498 GBP|Avg: £2,299 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 8£1,650 GBP
Retailer 3£1,888 GBP
Retailer 4£1,895 GBP
Retailer 2£2,087 GBP
Retailer 6£2,167 GBP
Retailer 9£2,210 GBP
Retailer 7£2,408 GBP
Retailer 5£2,426 GBP
MOH London£3,447 GBP

36 data points across 9 retailers

17 retailers£1,615 GBP to £3,447 GBP

B+
Cheapest Retailer
-
£1,615 GBP
B+
Retailer 2
-
£1,650 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,782 GBP
View
B+
Retailer 4
-
£1,822 GBP
View
B+
Retailer 5
-
£1,838 GBP
View
B+
Retailer 6
-
£1,888 GBP
View
B+
Retailer 7
-
£1,895 GBP
View
B+
Retailer 8
-
£1,934 GBP
View
B
Retailer 9
-
£2,055 GBP
View
B
Retailer 10
-
£2,055 GBP
View
B+
Retailer 11
-
£2,087 GBP
View
B
Retailer 12
-
£2,122 GBP
View
B
Retailer 13
-
£2,167 GBP
View
Retailer 14
-
£2,210 GBP
View
Price last confirmed 31 days ago
B
Retailer 15
-
£2,408 GBP
View
B
Retailer 16
-
£2,426 GBP
View
Most Expensive
B
MOH London
AA1098E12 · Nov 4
£3,447 GBP
View
16 more retailers have this diamond
Prices start from £1,615 GBPSave up to £1,833 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
£1,615 GBP