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Heart|Natural|HRD

1.21ct H SI1 Heart Natural Diamond

H/SI1 • HRD 180000104497

Certificate HRD 180000104497

Diamond specifications and retailer prices

From £4,563 GBP
€5,817 EUR
As of November 6, 2026
1 retailer carries this diamond
Only listing: £4,563 GBP at Yorxs
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Yorxs

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included) and certified by HRD 180000104497. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
H
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 180000104497
Dimensions7.21 × 7.99 × 3.06 mm
L/W Ratio1.11
Top View
7.21 mm7.99 mm1.21 ctH / SI1
OriginNatural
PolishExcellent
SymmetryGood
FluorescenceMedium
CertificateHRD 180000104497
Side View
Table 69.0%CrownGirdlePavilionCuletDepth

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 6
Current: £4,842 GBP|Low: £4,464 GBP|High: £4,842 GBP|Avg: £4,691 GBP
Retailer 1
Yorxs
November 6, 2026
Yorxs£4,563 GBP
Retailer 1£4,842 GBP

20 data points across 2 retailers

1 retailer

C
Yorxs
511656252 · Nov 6
£4,563 GBP
€5,817 EUR
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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.

C
1.21ct Heart
£4,563 GBP