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Heart|Natural|HRD

1.00ct E SI2 Heart Natural Diamond

EX • E/SI2 • HRD 250000138643

Certificate HRD 250000138643

Diamond specifications and retailer prices

From £906 GBP
As of November 4, 2026
Save £1,490 GBP (62%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,397 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-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 250000138643. Listed at 11 retailers as of November 4, 2026, with prices from £906 to £2,397, a £1,490 spread on the same certified stone. NZ Jewellers lists it at £2,397. 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

1.00
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabHRD
CertificateHRD 250000138643
Dimensions5.95 × 6.88 × 4.12 mm
L/W Ratio1.16
Girdle conditionFaceted
Cert comments
The stone in accordance with the mentioned number has been identified as a natural gem diamond.
Top View
5.95 mm6.88 mm1.00 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateHRD 250000138643
Side View
Table 55.0%CrownGirdle: MediumPavilionCulet: NoneDepth 59.9%

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 4
Current: £2,397 GBP|Low: £831 GBP|High: £2,397 GBP|Avg: £1,232 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 4, 2026
Retailer 6£863 GBP
Retailer 8£906 GBP
Retailer 14£911 GBP
Retailer 10£982 GBP
Retailer 12£982 GBP
Retailer 11£1,004 GBP
Retailer 9£1,028 GBP
Retailer 3£1,083 GBP
Retailer 7£1,083 GBP
Retailer 13£1,134 GBP
Retailer 5£1,419 GBP
Retailer 4£1,588 GBP
Retailer 2£1,795 GBP
NZ Jewellers£2,397 GBP

16 data points across 14 retailers

11 retailers£906 GBP to £2,397 GBP

A
Cheapest Retailer
-
£906 GBP
Final sale: no returns
A
Retailer 2
-
£911 GBP
View
A
Retailer 3
-
£982 GBP
View
Retailer 4
-
£982 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£1,004 GBP
View
A
Retailer 6
-
£1,028 GBP
View
A
Retailer 7
-
£1,083 GBP
View
Retailer 8
-
£1,083 GBP
View
Price last confirmed 9 days ago
A
Retailer 9
-
£1,134 GBP
View
B+
Retailer 10
-
£1,795 GBP
View
Most Expensive
B
NZ Jewellers
310381e3-fa44-4fe5-9abd-567d2ab7c5fb · Nov 5
£2,397 GBP
$3,208 USD
View
10 more retailers have this diamond
Prices start from £906 GBPSave up to £1,490 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
1.00ct Heart
£906 GBP