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Heart|Natural|IGI

1.00ct E SI2 Heart Natural Diamond

VG • E/SI2 • IGI 743535121

Shape and cutting style on the report: Heart brilliant

Certificate IGI 743535121

Diamond specifications and retailer prices

From £945 GBP
As of November 4, 2026
Save £1,553 GBP (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,498 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 very-good cut grade and certified by IGI 743535121. Listed at 13 retailers as of November 4, 2026, with prices from £945 to £2,498, a £1,553 spread on the same certified stone. NZ Jewellers lists it at £2,498. 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

1.00
Carat
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 743535121
Dimensions5.91 × 6.87 × 4.23 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizePointed
Top View
5.91 mm6.87 mm1.00 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 743535121
Side View
Table 56.0%Crown 35.1°Girdle: STK-THKPavilion 41.6°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,875 GBP|Low: £788 GBP|High: £1,898 GBP|Avg: £1,145 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 3£788 GBP
Retailer 4£945 GBP
Retailer 2£950 GBP
Retailer 8£1,024 GBP
Retailer 7£1,039 GBP
Retailer 5£1,068 GBP
Retailer 9£1,125 GBP
Retailer 6£1,165 GBP
Retailer 10£1,234 GBP
Retailer 11£1,395 GBP
Retailer 1£1,875 GBP

13 data points across 11 retailers

13 retailers£945 GBP to £2,498 GBP

A
Cheapest Retailer
-
£945 GBP
Final sale: no returns
A
Retailer 2
-
£950 GBP
View
Retailer 3
-
£1,024 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£1,024 GBP
View
A
Retailer 5
-
£1,039 GBP
View
A
Retailer 6
-
£1,068 GBP
View
A
Retailer 7
-
£1,071 GBP
View
A
Retailer 8
-
£1,125 GBP
View
Retailer 9
-
£1,165 GBP
View
Price last confirmed 41 days ago
Retailer 10
-
£1,182 GBP
View
Price last confirmed 61 days ago
A
Retailer 11
-
£1,182 GBP
View
B+
Retailer 12
-
£1,875 GBP
View
Most Expensive
B
NZ Jewellers
5fe15320-b569-402a-823e-e9349cda630a · Nov 5
£2,498 GBP
$3,344 USD
View
12 more retailers have this diamond
Prices start from £945 GBPSave up to £1,553 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
£945 GBP