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Heart|Natural|HRD

1.03ct J SI1 Heart Natural Diamond

EX • J/SI1 • HRD 170003042404

Certificate HRD 170003042404

Diamond specifications and retailer prices

From £2,064 GBP
As of November 5, 2026
Save £1,697 GBP (45%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £3,760 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct natural heart diamond

This 1.03ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 170003042404. Listed at 3 retailers as of November 4, 2026, with prices from £2,064 to £3,760, a £1,697 spread on the same certified stone. MOH London lists it at £3,760. 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

1.03
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabHRD
CertificateHRD 170003042404
Dimensions6.18 × 7.14 × 3.64 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.18 mm7.14 mm1.03 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateHRD 170003042404
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 51.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £3,760 GBP|Low: £2,064 GBP|High: £3,816 GBP|Avg: £2,582 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5£2,064 GBP
Retailer 4£2,230 GBP
Retailer 2£2,415 GBP
Retailer 3£2,426 GBP
MOH London£3,760 GBP

37 data points across 5 retailers

3 retailers£2,064 GBP to £3,760 GBP

B
Cheapest Retailer
-
£2,064 GBP
B
Retailer 2
-
£2,415 GBP
View
Most Expensive
C
MOH London
1C8966880 · Nov 4
£3,760 GBP
View
2 more retailers have this diamond
Prices start from £2,064 GBPSave up to £1,697 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
1.03ct Heart
£2,064 GBP