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Heart|Natural|IGI

1.50ct K SI1 Heart Natural Diamond

VG • K/SI1 • IGI 828676923

Shape and cutting style on the report: Heart brilliant

Certificate IGI 828676923

Diamond specifications and retailer prices

From £1,910 GBP
As of November 6, 2026
Save £2,040 GBP (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,950 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 828676923. Listed at 10 retailers as of November 5, 2026, with prices from £1,910 to £3,950, a £2,040 spread on the same certified stone. NZ Jewellers lists it at £3,950. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle38.9°
OriginNatural
Grading LabIGI
CertificateIGI 828676923
Dimensions6.76 × 7.83 × 4.64 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.76 mm7.83 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 828676923
Side View
Table 62.0%Crown 38°Girdle: STK-THKPavilion 38.9°CuletDepth 59.3%

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: £3,950 GBP|Low: £1,910 GBP|High: £3,950 GBP|Avg: £2,684 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2£1,910 GBP
Retailer 3£2,199 GBP
Retailer 6£2,267 GBP
Retailer 9£2,267 GBP
Retailer 8£2,355 GBP
Retailer 10£2,374 GBP
Retailer 4£2,616 GBP
Retailer 5£2,767 GBP
Retailer 7£3,782 GBP
NZ Jewellers£3,950 GBP

39 data points across 10 retailers

10 retailers£1,910 GBP to £3,950 GBP

A
Cheapest Retailer
-
£1,910 GBP
B+
Retailer 2
-
£2,199 GBP
View
B+
Retailer 3
-
£2,267 GBP
View
B+
Retailer 4
-
£2,267 GBP
View
B+
Retailer 5
-
£2,355 GBP
View
B+
Retailer 6
-
£2,374 GBP
View
B+
Retailer 7
-
£2,616 GBP
View
B+
Retailer 8
-
£2,767 GBP
View
B
Retailer 9
-
£3,782 GBP
View
Most Expensive
B
NZ Jewellers
8def1ca0-38ee-4f1f-b9b2-e730f098196f · Nov 5
£3,950 GBP
$5,287 USD
View
9 more retailers have this diamond
Prices start from £1,910 GBPSave up to £2,040 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
£1,910 GBP