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Heart|Natural|HRD

1.21ct K IF Heart Natural Diamond

EX • K/IF • HRD 260000071673

Certificate HRD 260000071673

Diamond specifications and retailer prices

From £1,551 GBP
As of November 1, 2026
Save £1,691 GBP (52%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,242 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 260000071673. Listed at 4 retailers as of November 1, 2026, with prices from £1,551 to £3,242, a £1,691 spread on the same certified stone. NZ Jewellers lists it at £3,242. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
K
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.57°
Pavilion angle39.98°
OriginNatural
Grading LabHRD
CertificateHRD 260000071673
Dimensions6.50 × 7.47 × 4.35 mm
L/W Ratio1.15
Girdle conditionMedium
Top View
6.50 mm7.47 mm1.21 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000071673
Side View
Table 58.0%Crown 36.57°GirdlePavilion 39.98°CuletDepth 58.2%

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 1
Current: £3,242 GBP|Low: £1,538 GBP|High: £3,275 GBP|Avg: £2,119 GBP|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5£1,538 GBP
Retailer 3£1,551 GBP
Retailer 4£1,622 GBP
Retailer 6£1,879 GBP
Retailer 2£2,716 GBP
NZ Jewellers£3,242 GBP

13 data points across 6 retailers

4 retailers£1,551 GBP to £3,242 GBP

A
Cheapest Retailer
-
£1,551 GBP
A
Retailer 2
-
£1,622 GBP
View
B
Retailer 3
-
£2,716 GBP
View
Most Expensive
B
NZ Jewellers
e12d7ab3-aca0-4725-a42d-d76a5c1bd935 · Nov 3
£3,242 GBP
$4,339 USD
View
3 more retailers have this diamond
Prices start from £1,551 GBPSave up to £1,691 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
£1,551 GBP