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Heart|Natural|HRD

1.00ct E SI2 Heart Natural Diamond

ID • E/SI2 • HRD 260000175618

Certificate HRD 260000175618

Diamond specifications and retailer prices

From £982 GBP
As of November 6, 2026
Save £897 GBP (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,702 GBP at NZ Jewellers · As of September 25, 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 260000175618. Listed at 13 retailers as of November 4, 2026, with a 91% 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

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

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.2°
Pavilion angle44.04°
OriginNatural
Grading LabHRD
CertificateHRD 260000175618
Dimensions6.84 × 5.95 × 4.23 mm
L/W Ratio1.15
Culet sizeNone
Top View
6.84 mm5.95 mm1.00 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateHRD 260000175618
Side View
Table 58.0%Crown 36.2°Girdle: ThickPavilion 44.04°Culet: NoneDepth 61.9%

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 6
Current: £982 GBP|Low: £937 GBP|High: £1,963 GBP|Avg: £1,270 GBP|-4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1£982 GBP
Retailer 6£992 GBP
Retailer 7£1,108 GBP
Retailer 5£1,125 GBP
Retailer 3£1,160 GBP
Retailer 9£1,164 GBP
Retailer 8£1,261 GBP
Retailer 2£1,467 GBP
Retailer 4£1,878 GBP

23 data points across 9 retailers

13 retailers£982 GBP to £1,878 GBP

A
Cheapest Retailer
-
£982 GBP
A
Retailer 2
-
£992 GBP
View
Final sale: no returns
Retailer 3
-
£1,108 GBP
View
Price last confirmed 45 days ago
Retailer 4
-
£1,108 GBP
View
Price last confirmed 21 days ago
A
Retailer 5
-
£1,125 GBP
View
A
Retailer 6
-
£1,160 GBP
View
A
Retailer 7
-
£1,164 GBP
View
Retailer 8
-
£1,261 GBP
View
Price last confirmed 41 days ago
Retailer 9
-
£1,278 GBP
View
Price last confirmed 43 days ago
Retailer 10
-
£1,278 GBP
View
Price last confirmed 52 days ago
A
Retailer 11
-
£1,467 GBP
View
B+
Retailer 12
-
£1,878 GBP
View
Most Expensive
NZ Jewellers
a36a435d-6e64-4836-b2a3-b7ecd2098575 · Sep 25
£2,702 GBP
$3,617 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from £982 GBPSave up to £897 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
£982 GBP