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Heart|Natural|IGI

1.50ct K SI2 Heart Natural Diamond

VG • K/SI2 • IGI 729536765

Shape and cutting style on the report: Heart brilliant

Certificate IGI 729536765

Diamond specifications and retailer prices

From £1,435 GBP
As of November 4, 2026
Save £1,886 GBP (57%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,321 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 729536765. Listed at 10 retailers as of November 4, 2026, with prices from £1,435 to £3,321, a £1,886 spread on the same certified stone. NZ Jewellers lists it at £3,321. 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

1.50
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle42.1°
OriginNatural
Grading LabIGI
CertificateIGI 729536765
Dimensions6.89 × 7.88 × 4.76 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Top View
6.89 mm7.88 mm1.50 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 729536765
Side View
Table 57.0%Crown 38°Girdle: STK-THKPavilion 42.1°Culet: NoneDepth 60.4%

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: £2,775 GBP|Low: £1,287 GBP|High: £2,816 GBP|Avg: £1,803 GBP|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 8£1,287 GBP
Retailer 7£1,435 GBP
Retailer 3£1,528 GBP
Retailer 2£1,668 GBP
Retailer 4£1,691 GBP
Retailer 5£1,889 GBP
Retailer 6£2,120 GBP
Retailer 1£2,775 GBP

11 data points across 8 retailers

10 retailers£1,435 GBP to £3,321 GBP

A
Cheapest Retailer
-
£1,435 GBP
B+
Retailer 2
-
£1,528 GBP
View
B+
Retailer 3
-
£1,588 GBP
View
Retailer 4
-
£1,588 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
£1,662 GBP
View
B+
Retailer 6
-
£1,668 GBP
View
B+
Retailer 7
-
£1,691 GBP
View
B+
Retailer 8
-
£1,833 GBP
View
B+
Retailer 9
-
£2,775 GBP
View
Most Expensive
B
NZ Jewellers
5e15cea7-96fc-4989-ab2e-62c7e81ba7f9 · Nov 5
£3,321 GBP
$4,445 USD
View
9 more retailers have this diamond
Prices start from £1,435 GBPSave up to £1,886 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
1.50ct Heart
£1,435 GBP