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Heart|Natural|IGI

1.30ct I SI1 Heart Natural Diamond

EX • I/SI1 • IGI 762534841

Shape and cutting style on the report: Heart brilliant

Certificate IGI 762534841

Diamond specifications and retailer prices

From £1,591 GBP
As of November 6, 2026
Save £2,091 GBP (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,683 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural heart diamond

This 1.3ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 762534841. Listed at 16 retailers as of November 5, 2026, with prices from £1,591 to £3,683, a £2,091 spread on the same certified stone. NZ Jewellers lists it at £3,683. 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

1.30
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.2°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 762534841
Dimensions6.66 × 7.60 × 4.42 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Top View
6.66 mm7.60 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 762534841
Side View
Table 61.0%Crown 35.2°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 58.2%

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 6
Current: £3,683 GBP|Low: £1,591 GBP|High: £3,795 GBP|Avg: £2,130 GBP|-3.0%
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
Retailer 15
November 6, 2026
Retailer 5£1,591 GBP
Retailer 2£1,609 GBP
Retailer 8£1,691 GBP
Retailer 4£1,724 GBP
Retailer 14£1,759 GBP
Retailer 15£1,762 GBP
Retailer 7£1,815 GBP
Retailer 3£1,843 GBP
Retailer 9£1,848 GBP
Retailer 6£1,853 GBP
Retailer 10£1,928 GBP
Retailer 11£2,013 GBP
Retailer 12£2,149 GBP
Retailer 13£3,077 GBP
NZ Jewellers£3,683 GBP

38 data points across 15 retailers

16 retailers£1,591 GBP to £3,683 GBP

A
Cheapest Retailer
-
£1,591 GBP
A
Retailer 2
-
£1,609 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,691 GBP
View
A
Retailer 4
-
£1,724 GBP
View
A
Retailer 5
-
£1,759 GBP
View
A
Retailer 6
-
£1,762 GBP
View
Retailer 7
-
£1,815 GBP
View
Price last confirmed 9 days ago
Retailer 8
-
£1,815 GBP
View
Price last confirmed 22 days ago
A
Retailer 9
-
£1,843 GBP
View
A
Retailer 10
-
£1,848 GBP
View
A
Retailer 11
-
£1,853 GBP
View
A
Retailer 12
-
£1,928 GBP
View
A
Retailer 13
-
£2,013 GBP
View
A
Retailer 14
-
£2,149 GBP
View
B+
Retailer 15
-
£3,077 GBP
View
Most Expensive
B
NZ Jewellers
07a9bac2-5d1a-49cc-a705-091a234bd2ce · Nov 5
£3,683 GBP
$4,929 USD
View
15 more retailers have this diamond
Prices start from £1,591 GBPSave up to £2,091 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
1.30ct Heart
£1,591 GBP