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Radiant|Natural|GIA

1.22ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 2556766329

Certificate GIA 2556766329

Diamond specifications and retailer prices

From £3,171 GBP
As of November 7, 2026
Save £2,516 GBP (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £5,687 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.22ct natural radiant diamond

This 1.22ct 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 2556766329. Listed at 9 retailers as of November 3, 2026, with prices from £3,171 to £5,687, a £2,516 spread on the same certified stone. NZ Jewellers lists it at £5,687. 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

1.22
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle51.79°
Pavilion angle35.75°
OriginNatural
Grading LabGIA
CertificateGIA 2556766329
Dimensions7.05 × 5.42 × 3.66 mm
L/W Ratio1.30
Girdle conditionThick
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.05 mm5.42 mm1.22 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556766329
Side View
Table 72.0%Crown 51.79°Girdle: THK-POLPavilion 35.75°Culet: NoneDepth 67.5%

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: £5,687 GBP|Low: £3,097 GBP|High: £5,743 GBP|Avg: £3,890 GBP|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 2£3,171 GBP
Retailer 4£3,248 GBP
Retailer 3£3,257 GBP
Retailer 8£3,257 GBP
Retailer 7£3,264 GBP
Retailer 9£3,499 GBP
Retailer 6£3,683 GBP
Retailer 5£5,198 GBP
NZ Jewellers£5,687 GBP

39 data points across 9 retailers

9 retailers£3,171 GBP to £5,687 GBP

B+
Cheapest Retailer
-
£3,171 GBP
B+
Retailer 2
-
£3,248 GBP
View
B+
Retailer 3
-
£3,257 GBP
View
B+
Retailer 4
-
£3,257 GBP
View
B+
Retailer 5
-
£3,264 GBP
View
Retailer 6
-
£3,499 GBP
View
Price last confirmed 29 days ago
Retailer 7
-
£3,683 GBP
View
Price last confirmed 9 days ago
B
Retailer 8
-
£5,198 GBP
View
Most Expensive
B
NZ Jewellers
2a10aaca-e2fc-49d3-85df-38eeb415488f · Nov 3
£5,687 GBP
$7,612 USD
View
8 more retailers have this diamond
Prices start from £3,171 GBPSave up to £2,516 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+
1.22ct Radiant
£3,171 GBP