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Radiant|Natural|GIA

1.20ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 2446121072

Certificate GIA 2446121072

Diamond specifications and retailer prices

From £3,622 GBP
As of November 6, 2026
Save £3,732 GBP (51%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £7,354 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded D 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 2446121072. Listed at 15 retailers as of November 5, 2026, with prices from £3,622 to £7,354, a £3,732 spread on the same certified stone. NZ Jewellers lists it at £7,354. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle49.35°
Pavilion angle33.68°
OriginNatural
Grading LabGIA
CertificateGIA 2446121072
Dimensions6.44 × 5.28 × 3.79 mm
L/W Ratio1.22
Top View
6.44 mm5.28 mm1.20 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2446121072
Side View
Table 70.0%Crown 49.35°Girdle: Very ThickPavilion 33.68°Culet: NoneDepth 71.7%

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 6
Current: £7,354 GBP|Low: £3,622 GBP|High: £7,354 GBP|Avg: £4,779 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 7, 2026
Retailer 7£3,622 GBP
Retailer 6£3,721 GBP
Retailer 4£3,835 GBP
Retailer 11£3,851 GBP
Retailer 12£4,058 GBP
Retailer 3£4,397 GBP
Retailer 5£4,397 GBP
Retailer 13£4,427 GBP
Retailer 2£4,679 GBP
Retailer 8£4,777 GBP
Retailer 14£5,073 GBP
Retailer 9£5,364 GBP
Retailer 10£6,460 GBP
NZ Jewellers£7,354 GBP

42 data points across 14 retailers

15 retailers£3,622 GBP to £7,354 GBP

B+
Cheapest Retailer
-
£3,622 GBP
B
Retailer 2
-
£3,721 GBP
View
B
Retailer 3
-
£3,835 GBP
View
B
Retailer 4
-
£3,851 GBP
View
B
Retailer 5
-
£4,058 GBP
View
Final sale: no returns
B
Retailer 6
-
£4,397 GBP
View
B
Retailer 7
-
£4,397 GBP
View
Retailer 8
-
£4,397 GBP
View
Price last confirmed 9 days ago
Retailer 9
-
£4,427 GBP
View
Price last confirmed 34 days ago
B
Retailer 10
-
£4,679 GBP
View
B
Retailer 11
-
£4,777 GBP
View
B
Retailer 12
-
£5,073 GBP
View
B
Retailer 13
-
£5,364 GBP
View
B
Retailer 14
-
£6,460 GBP
View
Most Expensive
B
NZ Jewellers
bba5ea4a-eff9-405b-bfa0-0d8ee23ed1fb · Nov 5
£7,354 GBP
$9,843 USD
View
14 more retailers have this diamond
Prices start from £3,622 GBPSave up to £3,732 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
£3,622 GBP