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1.22ct M SI1 Round Natural Diamond

EX • M/SI1 • HRD 240000187709

Shape and cutting style on the report: Brilliant

Certificate HRD 240000187709

Diamond specifications and retailer prices

From £930 GBP
As of November 5, 2026
Save £1,338 GBP (59%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £2,268 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.22ct natural round diamond

This 1.22ct natural round sits in the classic one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by HRD 240000187709. Listed at 5 retailers as of November 5, 2026, with prices from £930 to £2,268, a £1,338 spread on the same certified stone. NZ Jewellers lists it at £2,268. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.6°
Pavilion angle40.8°
OriginNatural
Grading LabHRD
CertificateHRD 240000187709
Dimensions6.77 × 6.82 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.77 mm6.82 mm1.22 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateHRD 240000187709
Side View
Table 56.0%Crown 36.6°Girdle: MediumPavilion 40.8°Culet: NoneDepth 63.0%

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 5
Current: £2,268 GBP|Low: £654 GBP|High: £2,268 GBP|Avg: £1,107 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 9£654 GBP
Retailer 7£857 GBP
Retailer 2£930 GBP
Retailer 4£930 GBP
Retailer 5£966 GBP
Retailer 8£1,043 GBP
Retailer 3£1,073 GBP
Retailer 6£1,221 GBP
NZ Jewellers£2,268 GBP

14 data points across 9 retailers

5 retailers£930 GBP to £2,268 GBP

Retailer 1
-
£930 GBP
Price last confirmed 8 days ago
A
Retailer 2
-
£930 GBP
View
A
Retailer 3
-
£966 GBP
View
B+
Retailer 4
-
£1,073 GBP
View
Most Expensive
B
NZ Jewellers
29d234d2-2268-487b-9580-2aaa0c8767c6 · Nov 5
£2,268 GBP
$3,053 USD
View
4 more retailers have this diamond
Prices start from £930 GBPSave up to £1,338 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
1.22ct Round
£930 GBP