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Oval|Natural|HRD

1.21ct M SI2 Oval Natural Diamond

GD • M/SI2 • HRD 250000253938

Certificate HRD 250000253938

Diamond specifications and retailer prices

From £736 GBP
As of November 3, 2026
Save £1,572 GBP (68%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,308 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by HRD 250000253938. Listed at 4 retailers as of November 2, 2026, with prices from £736 to £2,308, a £1,572 spread on the same certified stone. NZ Jewellers lists it at £2,308. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
M
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.01°
Pavilion angle35.28°
OriginNatural
Grading LabHRD
CertificateHRD 250000253938
Dimensions9.08 × 5.93 × 3.34 mm
L/W Ratio1.53
Girdle conditionMedium
Top View
9.08 mm5.93 mm1.21 ctM / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 250000253938
Side View
Table 57.0%Crown 37.01°GirdlePavilion 35.28°Culet: NoneDepth 56.3%

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 3
Current: £2,308 GBP|Low: £736 GBP|High: £2,344 GBP|Avg: £1,140 GBP|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 18, 2026
Retailer 2£736 GBP
Retailer 3£762 GBP
Retailer 4£764 GBP
Retailer 5£991 GBP
NZ Jewellers£2,308 GBP

9 data points across 5 retailers

4 retailers£736 GBP to £2,308 GBP

B+
Cheapest Retailer
-
£736 GBP
B+
Retailer 2
-
£762 GBP
View
B+
Retailer 3
-
£764 GBP
View
Most Expensive
C
NZ Jewellers
7e162b5b-9c3f-40b0-b4a7-b15739b2eff1 · Nov 2
£2,308 GBP
$3,089 USD
View
3 more retailers have this diamond
Prices start from £736 GBPSave up to £1,572 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 Oval
£736 GBP