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Heart|Natural|IGI

1.00ct E SI2 Heart Natural Diamond

VG • E/SI2 • IGI 743559130

Shape and cutting style on the report: Heart brilliant

Certificate IGI 743559130

Diamond specifications and retailer prices

From £731 GBP
As of November 2, 2026
Save £1,665 GBP (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,396 GBP at NZ Jewellers · As of November 3, 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 743559130. Listed at 14 retailers as of November 2, 2026, with prices from £731 to £2,396, a £1,665 spread on the same certified stone. NZ Jewellers lists it at £2,396. 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 angle34.5°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 743559130
Dimensions5.95 × 6.87 × 4.09 mm
L/W Ratio1.15
Girdle conditionFaceted
Top View
5.95 mm6.87 mm1.00 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 743559130
Side View
Table 60.0%Crown 34.5°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 59.5%

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 2
Current: £2,396 GBP|Low: £731 GBP|High: £2,396 GBP|Avg: £1,130 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 3, 2026
Retailer 7£731 GBP
Retailer 10£827 GBP
Retailer 4£907 GBP
Retailer 12£926 GBP
Retailer 2£969 GBP
Retailer 3£982 GBP
Retailer 5£982 GBP
Retailer 9£990 GBP
Retailer 13£1,027 GBP
Retailer 6£1,083 GBP
Retailer 11£1,083 GBP
Retailer 14£1,133 GBP
Retailer 8£1,798 GBP
NZ Jewellers£2,396 GBP

35 data points across 14 retailers

14 retailers£731 GBP to £2,396 GBP

A
Cheapest Retailer
-
£731 GBP
A
Retailer 2
-
£827 GBP
View
B+
Retailer 3
-
£907 GBP
View
Final sale: no returns
A
Retailer 4
-
£926 GBP
View
A
Retailer 5
-
£969 GBP
View
A
Retailer 6
-
£982 GBP
View
Retailer 7
-
£982 GBP
View
Price last confirmed 8 days ago
A
Retailer 8
-
£990 GBP
View
A
Retailer 9
-
£1,027 GBP
View
A
Retailer 10
-
£1,083 GBP
View
Retailer 11
-
£1,083 GBP
View
Price last confirmed 9 days ago
A
Retailer 12
-
£1,133 GBP
View
B+
Retailer 13
-
£1,798 GBP
View
Most Expensive
B
NZ Jewellers
2ac9501a-f69a-483e-82a9-785b2124e472 · Nov 3
£2,396 GBP
$3,207 USD
View
13 more retailers have this diamond
Prices start from £731 GBPSave up to £1,665 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
£731 GBP