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Radiant|Natural|GIA

1.20ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 2546894728

Certificate GIA 2546894728

Diamond specifications and retailer prices

From £1,778 GBP
As of November 6, 2026
Save £2,219 GBP (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,163 GBP at NZ Jewellers · As of October 24, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546894728. Listed at 18 retailers as of November 6, 2026, with a 125% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546894728
Dimensions6.81 × 5.24 × 3.65 mm
L/W Ratio1.30
Top View
6.81 mm5.24 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546894728
Side View
Table 70.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,163 GBP|Low: £1,750 GBP|High: £4,163 GBP|Avg: £2,645 GBP|+0.6%
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
Retailer 15
Retailer 16
November 7, 2026
Retailer 5£1,778 GBP
Retailer 15£2,031 GBP
Retailer 14£2,120 GBP
Retailer 16£2,140 GBP
Retailer 7£2,218 GBP
Retailer 9£2,241 GBP
Retailer 4£2,331 GBP
Retailer 10£2,331 GBP
Retailer 6£2,362 GBP
Retailer 11£2,474 GBP
Retailer 8£2,615 GBP
Retailer 12£2,731 GBP
Retailer 13£2,933 GBP
Retailer 3£3,589 GBP
Retailer 2£3,997 GBP
NZ Jewellers£4,163 GBP

21 data points across 16 retailers

18 retailers£1,778 GBP to £3,997 GBP

A
Cheapest Retailer
-
£1,778 GBP
Retailer 2
-
£2,031 GBP
View
Price last confirmed 3 days ago
A
Retailer 3
-
£2,120 GBP
View
A
Retailer 4
-
£2,140 GBP
View
B+
Retailer 5
-
£2,218 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,241 GBP
View
B+
Retailer 7
-
£2,331 GBP
View
B+
Retailer 8
-
£2,331 GBP
View
B+
Retailer 9
-
£2,362 GBP
View
B+
Retailer 10
-
£2,436 GBP
View
B+
Retailer 11
-
£2,474 GBP
View
Retailer 12
-
£2,547 GBP
View
Price last confirmed 34 days ago
B+
Retailer 13
-
£2,615 GBP
View
B+
Retailer 14
-
£2,731 GBP
View
B+
Retailer 15
-
£2,933 GBP
View
B
Retailer 16
-
£3,589 GBP
View
B
Retailer 17
-
£3,997 GBP
View
Most Expensive
NZ Jewellers
c0d1772c-7aa9-4f89-929b-58f0c808038d · Oct 24
£4,163 GBP
$5,572 USD
View
Price last confirmed 14 days ago
17 more retailers have this diamond
Prices start from £1,778 GBPSave up to £2,219 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
£1,778 GBP