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Heart|Natural|HRD

1.51ct E SI2 Heart Natural Diamond

ID • E/SI2 • HRD 190000010563

Shape and cutting style on the report: Heart

Certificate HRD 190000010563

Diamond specifications and retailer prices

From £5,262 GBP
€6,673 EUR
As of October 29, 2026
Save £3,319 GBP (39%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £10,242 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two 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 190000010563. Listed at 10 retailers as of October 29, 2026, with a 63% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabHRD
CertificateHRD 190000010563
Dimensions6.91 × 7.31 × 3.88 mm
L/W Ratio1.06
Girdle conditionFaceted
Top View
6.91 mm7.31 mm1.51 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 190000010563
Side View
Table 64.0%CrownGirdlePavilionCulet: 13.Depth 53.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £8,580 GBP|Low: £3,947 GBP|High: £8,637 GBP|Avg: £5,984 GBP|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 3£3,947 GBP
Retailer 2£5,262 GBP
Retailer 6£5,293 GBP
Retailer 7£5,617 GBP
Retailer 5£5,653 GBP
Retailer 11£5,658 GBP
Retailer 9£6,253 GBP
Retailer 4£6,327 GBP
Retailer 10£6,564 GBP
Retailer 8£7,066 GBP
Retailer 1£8,580 GBP

22 data points across 11 retailers

10 retailers£5,262 GBP to £8,580 GBP

B+
Cheapest Retailer
-
£5,262 GBP
€6,673 EUR
B+
Retailer 2
-
£5,293 GBP
$7,049 USD
View
B
Retailer 3
-
£5,617 GBP
A$11,508 AUD
View
B
Retailer 4
-
£5,653 GBP
$7,528 USD
View
Final sale: no returns
Retailer 5
-
£6,124 GBP
$8,155 USD
View
Price last confirmed 31 days ago
B
Retailer 6
-
£6,253 GBP
$8,328 USD
View
B+
Retailer 7
-
£6,327 GBP
€8,024 EUR
View
Retailer 8
-
£7,066 GBP
$9,410 USD
View
Price last confirmed 31 days ago
B
Retailer 9
-
£8,580 GBP
View
Most Expensive
NZ Jewellers
d0054fb0-88f9-44e5-bd81-4ec3c4643c1a · Sep 30
£10,242 GBP
$13,639 USD
View
Price last confirmed 29 days ago
9 more retailers have this diamond
Prices start from £5,262 GBPSave up to £3,319 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+
1.51ct Heart
£5,262 GBP