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Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 2546974498

Certificate GIA 2546974498

Diamond specifications and retailer prices

From £2,270 GBP
$3,042 USD
As of October 31, 2026
Save £2,692 GBP (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,962 GBP at MOH London · As of November 1, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546974498. Listed at 15 retailers as of October 31, 2026, with prices from £2,270 to £4,962, a £2,692 spread on the same certified stone. MOH London lists it at £4,962. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546974498
Dimensions7.52 × 5.20 × 3.52 mm
L/W Ratio1.45
Top View
7.52 mm5.20 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546974498
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.8%

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: Oct 31
Current: £4,962 GBP|Low: £2,243 GBP|High: £5,022 GBP|Avg: £3,247 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7£2,270 GBP
Retailer 9£2,280 GBP
Retailer 8£2,873 GBP
Retailer 11£2,923 GBP
Retailer 4£3,035 GBP
Retailer 6£3,181 GBP
Retailer 2£3,357 GBP
Retailer 10£3,358 GBP
Retailer 3£4,032 GBP
Retailer 5£4,287 GBP
MOH London£4,962 GBP

43 data points across 11 retailers

15 retailers£2,270 GBP to £4,962 GBP

B+
Cheapest Retailer
-
£2,270 GBP
$3,042 USD
B+
Retailer 2
-
£2,280 GBP
$3,055 USD
View
B+
Retailer 3
-
£2,467 GBP
A$5,086 AUD
View
B
Retailer 4
-
£2,873 GBP
$3,849 USD
View
B
Retailer 5
-
£2,923 GBP
$3,917 USD
View
B
Retailer 6
-
£3,035 GBP
View
B
Retailer 7
-
£3,038 GBP
$4,070 USD
View
B
Retailer 8
-
£3,038 GBP
$4,070 USD
View
B
Retailer 9
-
£3,142 GBP
$4,210 USD
View
B
Retailer 10
-
£3,175 GBP
$4,255 USD
View
Retailer 11
-
£3,181 GBP
A$6,557 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
£3,357 GBP
€4,284 EUR
View
Retailer 13
-
£3,358 GBP
$4,500 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
£4,287 GBP
$5,745 USD
View
Most Expensive
B
MOH London
68CDFF3BD · Nov 1
£4,962 GBP
View
14 more retailers have this diamond
Prices start from £2,270 GBPSave up to £2,692 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
£2,270 GBP