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Heart|Natural|HRD

1.23ct K SI2 Heart Natural Diamond

K/SI2 • HRD 190000105973

Shape and cutting style on the report: Heart

Certificate HRD 190000105973

Diamond specifications and retailer prices

From £2,019 GBP
As of November 6, 2026
Save £749 GBP (27%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,768 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included) and certified by HRD 190000105973. Listed at 2 retailers as of November 4, 2026, with prices from £2,019 to £2,768, a £749 spread on the same certified stone. MOH London lists it at £2,768. 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

1.23
Carat
K
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 190000105973
Dimensions6.57 × 7.23 × 3.14 mm
L/W Ratio1.10
Girdle conditionFaceted
Top View
6.57 mm7.23 mm1.23 ctK / SI2
OriginNatural
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateHRD 190000105973
Side View
Table 63.0%CrownGirdlePavilionCulet: 23.Depth 43.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £2,768 GBP|Low: £1,639 GBP|High: £2,809 GBP|Avg: £2,148 GBP|-1.4%
MOH London
Retailer 2
Retailer 3
November 6, 2026
Retailer 3£1,639 GBP
Retailer 2£2,019 GBP
MOH London£2,768 GBP

22 data points across 3 retailers

2 retailers£2,019 GBP to £2,768 GBP

B
Cheapest Retailer
-
£2,019 GBP
Most Expensive
C
MOH London
39381A28F · Nov 4
£2,768 GBP
View
1 more retailer has this diamond
Prices start from £2,019 GBPSave up to £749 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
1.23ct Heart
£2,019 GBP