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Heart|Natural|HRD

1.21ct D SI2 Heart Natural Diamond

VG • D/SI2 • HRD 260000071653

Certificate HRD 260000071653

Diamond specifications and retailer prices

From £1,627 GBP
As of November 6, 2026
Save £1,845 GBP (53%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,473 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by HRD 260000071653. Listed at 5 retailers as of November 3, 2026, with prices from £1,627 to £3,473, a £1,845 spread on the same certified stone. NZ Jewellers lists it at £3,473. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle41.62°
Pavilion angle41.59°
OriginNatural
Grading LabHRD
CertificateHRD 260000071653
Dimensions6.57 × 7.29 × 4.41 mm
L/W Ratio1.11
Girdle conditionMedium
Top View
6.57 mm7.29 mm1.21 ctD / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000071653
Side View
Table 62.0%Crown 41.62°GirdlePavilion 41.59°Culet: NoneDepth 60.5%

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 6
Current: £3,473 GBP|Low: £1,627 GBP|High: £3,597 GBP|Avg: £2,360 GBP|-3.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4£1,627 GBP
Retailer 5£1,661 GBP
Retailer 3£1,738 GBP
Retailer 2£2,910 GBP
NZ Jewellers£3,473 GBP

14 data points across 5 retailers

5 retailers£1,627 GBP to £3,473 GBP

A
Cheapest Retailer
-
£1,627 GBP
A
Retailer 2
-
£1,661 GBP
View
A
Retailer 3
-
£1,738 GBP
View
B
Retailer 4
-
£2,910 GBP
View
Most Expensive
B
NZ Jewellers
9efa447e-3970-47be-8335-15262c1b974f · Nov 3
£3,473 GBP
$4,648 USD
View
4 more retailers have this diamond
Prices start from £1,627 GBPSave up to £1,845 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
£1,627 GBP