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Radiant|Natural|GIA

1.21ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 7566324802

Certificate GIA 7566324802

Diamond specifications and retailer prices

From £2,371 GBP
As of November 6, 2026
Save £3,170 GBP (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,541 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 F 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 7566324802. Listed at 16 retailers as of November 5, 2026, with prices from £2,371 to £5,541, a £3,170 spread on the same certified stone. NZ Jewellers lists it at £5,541. 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

1.21
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7566324802
Dimensions7.07 × 5.42 × 3.72 mm
L/W Ratio1.30
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
7.07 mm5.42 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7566324802
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.6%

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 6
Current: £5,541 GBP|Low: £2,352 GBP|High: £5,769 GBP|Avg: £3,415 GBP|-4.0%
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
Retailer 15
November 7, 2026
Retailer 11£2,371 GBP
Retailer 12£2,381 GBP
Retailer 5£2,894 GBP
Retailer 4£2,935 GBP
Retailer 3£2,996 GBP
Retailer 8£3,105 GBP
Retailer 13£3,180 GBP
Retailer 14£3,180 GBP
Retailer 10£3,183 GBP
Retailer 15£3,365 GBP
Retailer 7£3,404 GBP
Retailer 6£3,670 GBP
Retailer 2£3,941 GBP
Retailer 9£5,290 GBP
NZ Jewellers£5,541 GBP

30 data points across 15 retailers

16 retailers£2,371 GBP to £5,541 GBP

B+
Cheapest Retailer
-
£2,371 GBP
B+
Retailer 2
-
£2,381 GBP
View
B+
Retailer 3
-
£2,640 GBP
View
B+
Retailer 4
-
£2,894 GBP
View
B+
Retailer 5
-
£2,935 GBP
View
Final sale: no returns
Retailer 6
-
£2,996 GBP
View
Price last confirmed 11 days ago
B+
Retailer 7
-
£3,105 GBP
View
B+
Retailer 8
-
£3,180 GBP
View
B+
Retailer 9
-
£3,180 GBP
View
B+
Retailer 10
-
£3,183 GBP
View
B+
Retailer 11
-
£3,365 GBP
View
Price last confirmed 7 days ago
Retailer 12
-
£3,404 GBP
View
Price last confirmed 29 days ago
B
Retailer 13
-
£3,670 GBP
View
Retailer 14
-
£3,941 GBP
View
B
Retailer 15
-
£5,290 GBP
View
Most Expensive
B
NZ Jewellers
32679ae2-adf4-4ffa-b85f-ca694f563f22 · Nov 5
£5,541 GBP
$7,416 USD
View
15 more retailers have this diamond
Prices start from £2,371 GBPSave up to £3,170 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
£2,371 GBP