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Radiant|Natural|GIA

1.21ct G VS1 Radiant Natural Diamond

ID • G/VS1 • GIA 1242011978

Certificate GIA 1242011978

Diamond specifications and retailer prices

From £3,704 GBP
As of November 7, 2026
Save £4,954 GBP (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £8,658 GBP at NZ Jewellers · As of November 5, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1242011978. Listed at 15 retailers as of November 5, 2026, with prices from £3,704 to £8,658, a £4,954 spread on the same certified stone. NZ Jewellers lists it at £8,658. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
G
Colour
VS1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1242011978
Dimensions7.17 × 5.30 × 3.59 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.17 mm5.30 mm1.21 ctG / VS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242011978
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.7%

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: Nov 7
Current: £8,658 GBP|Low: £4,380 GBP|High: £8,658 GBP|Avg: £5,660 GBP
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
November 7, 2026
Retailer 4£4,516 GBP
Retailer 7£4,732 GBP
Retailer 5£4,796 GBP
Retailer 8£4,873 GBP
Retailer 3£5,077 GBP
Retailer 14£5,177 GBP
Retailer 2£5,206 GBP
Retailer 6£5,296 GBP
Retailer 10£5,556 GBP
Retailer 9£5,570 GBP
Retailer 11£5,916 GBP
Retailer 12£6,316 GBP
Retailer 13£7,606 GBP
NZ Jewellers£8,658 GBP

37 data points across 14 retailers

15 retailers£3,704 GBP to £8,658 GBP

B+
Cheapest Retailer
-
£3,704 GBP
B+
Retailer 2
-
£4,516 GBP
View
B+
Retailer 3
-
£4,732 GBP
View
Final sale: no returns
B+
Retailer 4
-
£4,796 GBP
View
B+
Retailer 5
-
£4,873 GBP
View
Retailer 6
-
£5,077 GBP
View
Price last confirmed 34 days ago
B
Retailer 7
-
£5,177 GBP
View
B+
Retailer 8
-
£5,206 GBP
View
B
Retailer 9
-
£5,296 GBP
View
B
Retailer 10
-
£5,556 GBP
View
B+
Retailer 11
-
£5,570 GBP
View
B
Retailer 12
-
£5,916 GBP
View
B
Retailer 13
-
£6,316 GBP
View
B
Retailer 14
-
£7,606 GBP
View
Most Expensive
B
NZ Jewellers
36fcf777-7e88-46e2-a007-d04c9f883b1e · Nov 5
£8,658 GBP
$11,589 USD
View
14 more retailers have this diamond
Prices start from £3,704 GBPSave up to £4,954 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+
1.21ct Radiant
£3,704 GBP