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Radiant|Natural|GIA

1.20ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 2231996142

Certificate GIA 2231996142

Diamond specifications and retailer prices

From £1,357 GBP
As of November 6, 2026
Save £1,827 GBP (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,890 GBP at NZ Jewellers · As of September 30, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231996142. Listed at 12 retailers as of November 4, 2026, with a 135% 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231996142
Dimensions6.78 × 5.21 × 3.64 mm
L/W Ratio1.30
Girdle conditionPolished
Top View
6.78 mm5.21 mm1.20 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231996142
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.8%

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: £1,741 GBP|Low: £1,339 GBP|High: £3,240 GBP|Avg: £1,878 GBP|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 11£1,357 GBP
Retailer 8£1,485 GBP
Retailer 3£1,524 GBP
Retailer 7£1,588 GBP
Retailer 4£1,591 GBP
Retailer 10£1,688 GBP
Retailer 2£1,712 GBP
Retailer 1£1,741 GBP
Retailer 5£2,217 GBP
Retailer 9£2,734 GBP
Retailer 6£3,184 GBP

35 data points across 11 retailers

12 retailers£1,357 GBP to £3,184 GBP

A
Cheapest Retailer
-
£1,357 GBP
A
Retailer 2
-
£1,485 GBP
View
A
Retailer 3
-
£1,524 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,588 GBP
View
A
Retailer 5
-
£1,591 GBP
View
A
Retailer 6
-
£1,688 GBP
View
A
Retailer 7
-
£1,712 GBP
View
A
Retailer 8
-
£1,741 GBP
View
B+
Retailer 9
-
£2,217 GBP
View
B
Retailer 10
-
£2,734 GBP
View
B
Retailer 11
-
£3,184 GBP
View
Most Expensive
NZ Jewellers
cb30e8d1-4de9-4198-baa5-d8525e5a1f96 · Sep 30
£3,890 GBP
$5,207 USD
View
Price last confirmed 37 days ago
11 more retailers have this diamond
Prices start from £1,357 GBPSave up to £1,827 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
£1,357 GBP