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Radiant|Natural|GIA

1.21ct I VS2 Radiant Natural Diamond

EX • I/VS2 • GIA 1559435120

Certificate GIA 1559435120

Diamond specifications and retailer prices

From £1,702 GBP
As of November 4, 2026
Save £2,167 GBP (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,085 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded I colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559435120. Listed at 20 retailers as of November 4, 2026, with a 127% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
I
Colour
VS2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559435120
Dimensions6.89 × 5.27 × 3.67 mm
L/W Ratio1.31
Girdle conditionPolished
Top View
6.89 mm5.27 mm1.21 ctI / VS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559435120
Side View
Table 70.0%CrownGirdle: ThickPavilionCulet: 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 4
Current: £2,831 GBP|Low: £1,683 GBP|High: £3,941 GBP|Avg: £2,390 GBP|-0.0%
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
November 5, 2026
Retailer 5£1,702 GBP
Retailer 14£1,800 GBP
Retailer 16£1,840 GBP
Retailer 7£1,939 GBP
Retailer 12£1,960 GBP
Retailer 13£2,060 GBP
Retailer 2£2,062 GBP
Retailer 6£2,099 GBP
Retailer 3£2,147 GBP
Retailer 10£2,190 GBP
Retailer 4£2,383 GBP
Retailer 9£2,589 GBP
Retailer 15£2,632 GBP
Retailer 1£2,831 GBP
Retailer 8£2,978 GBP
Retailer 17£3,457 GBP
Retailer 11£3,869 GBP

22 data points across 17 retailers

20 retailers£1,702 GBP to £3,869 GBP

A
Cheapest Retailer
-
£1,702 GBP
A
Retailer 2
-
£1,800 GBP
View
A
Retailer 3
-
£1,840 GBP
View
A
Retailer 4
-
£1,939 GBP
View
Final sale: no returns
A
Retailer 5
-
£1,960 GBP
View
A
Retailer 6
-
£2,060 GBP
View
A
Retailer 7
-
£2,062 GBP
View
A
Retailer 8
-
£2,099 GBP
View
A
Retailer 9
-
£2,147 GBP
View
A
Retailer 10
-
£2,190 GBP
View
A
Retailer 11
-
£2,293 GBP
View
A
Retailer 12
-
£2,383 GBP
View
Retailer 13
-
£2,505 GBP
View
Price last confirmed 30 days ago
Retailer 14
-
£2,589 GBP
View
Price last confirmed 19 days ago
B+
Retailer 15
-
£2,632 GBP
View
B+
Retailer 16
-
£2,831 GBP
View
B+
Retailer 17
-
£2,978 GBP
View
B+
Retailer 18
-
£3,457 GBP
View
B
Retailer 19
-
£3,869 GBP
View
Most Expensive
NZ Jewellers
502f1d7d-54c2-404f-a1e0-1ac2eabc565e · Sep 30
£4,085 GBP
$5,498 USD
View
Price last confirmed 36 days ago
19 more retailers have this diamond
Prices start from £1,702 GBPSave up to £2,167 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
1.21ct Radiant
£1,702 GBP