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Heart|Natural|HRD

1.21ct E SI2 Heart Natural Diamond

ID • E/SI2 • HRD 260000244688

Certificate HRD 260000244688

Diamond specifications and retailer prices

From £1,321 GBP
As of November 4, 2026
Save £1,586 GBP (55%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,907 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000244688. Listed at 4 retailers as of November 4, 2026, with prices from £1,321 to £2,907, a £1,586 spread on the same certified stone. MOH London lists it at £2,907. 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
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 260000244688
Dimensions6.51 × 7.38 × 4.26 mm
L/W Ratio1.13
Top View
6.51 mm7.38 mm1.21 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000244688
Side View
Table 60.0%CrownGirdle: MediumPavilionCuletDepth 57.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,907 GBP|Low: £1,274 GBP|High: £2,931 GBP|Avg: £1,831 GBP|+3.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 4, 2026
Retailer 3£1,321 GBP
Retailer 4£1,536 GBP
Retailer 2£1,768 GBP
MOH London£2,907 GBP

19 data points across 4 retailers

4 retailers£1,321 GBP to £2,907 GBP

A
Cheapest Retailer
-
£1,321 GBP
A
Retailer 2
-
£1,536 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,768 GBP
View
Most Expensive
B
MOH London
1F3C03D42 · Nov 4
£2,907 GBP
View
3 more retailers have this diamond
Prices start from £1,321 GBPSave up to £1,586 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
1.21ct Heart
£1,321 GBP