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Radiant|Natural|GIA

1.20ct E SI1 Radiant Natural Diamond

ID • E/SI1 • GIA 2245018786

Certificate GIA 2245018786

Diamond specifications and retailer prices

From £2,075 GBP
As of November 6, 2026
Save £2,524 GBP (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,780 GBP at NZ Jewellers · As of October 11, 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 E 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 2245018786. Listed at 22 retailers as of November 4, 2026, with a 122% 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245018786
Dimensions6.88 × 5.27 × 3.67 mm
L/W Ratio1.31
Girdle conditionPolished
Top View
6.88 mm5.27 mm1.20 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245018786
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £2,632 GBP|Low: £2,037 GBP|High: £4,711 GBP|Avg: £2,734 GBP|+0.7%
Retailer 1
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
Retailer 17
Retailer 18
November 7, 2026
Retailer 8£2,075 GBP
Retailer 18£2,188 GBP
Retailer 2£2,235 GBP
Retailer 10£2,306 GBP
Retailer 12£2,349 GBP
Retailer 4£2,413 GBP
Retailer 5£2,418 GBP
Retailer 11£2,458 GBP
Retailer 16£2,482 GBP
Retailer 9£2,510 GBP
Retailer 6£2,555 GBP
Retailer 1£2,632 GBP
Retailer 13£2,675 GBP
Retailer 7£2,834 GBP
Retailer 14£3,211 GBP
Retailer 15£3,366 GBP
Retailer 3£4,198 GBP
Retailer 17£4,599 GBP

19 data points across 18 retailers

22 retailers£2,075 GBP to £4,599 GBP

A
Cheapest Retailer
-
£2,075 GBP
A
Retailer 2
-
£2,188 GBP
View
A
Retailer 3
-
£2,235 GBP
View
B+
Retailer 4
-
£2,306 GBP
View
Final sale: no returns
A
Retailer 5
-
£2,349 GBP
View
A
Retailer 6
-
£2,413 GBP
View
A
Retailer 7
-
£2,418 GBP
View
A
Retailer 8
-
£2,458 GBP
View
A
Retailer 9
-
£2,482 GBP
View
A
Retailer 10
-
£2,510 GBP
View
B+
Retailer 11
-
£2,555 GBP
View
B+
Retailer 12
-
£2,632 GBP
View
B+
Retailer 13
-
£2,675 GBP
View
B+
Retailer 14
-
£2,733 GBP
View
Retailer 15
-
£2,823 GBP
View
Price last confirmed 22 days ago
B+
Retailer 16
-
£2,834 GBP
View
Retailer 17
-
£2,954 GBP
View
Price last confirmed 30 days ago
B+
Retailer 18
-
£3,211 GBP
View
B+
Retailer 19
-
£3,366 GBP
View
B
Retailer 20
-
£4,198 GBP
View
B
Retailer 21
-
£4,599 GBP
View
Most Expensive
NZ Jewellers
1423e8c1-e719-4934-8b1e-4f5e77c950b6 · Oct 11
£4,780 GBP
$6,398 USD
View
Price last confirmed 26 days ago
21 more retailers have this diamond
Prices start from £2,075 GBPSave up to £2,524 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
£2,075 GBP