CaratHunter
Plans
Heart|Natural|IGI

1.51ct L SI1 Heart Natural Diamond

VG • L/SI1 • IGI 726562881

Shape and cutting style on the report: Heart brilliant

Certificate IGI 726562881

Diamond specifications and retailer prices

From £1,463 GBP
As of November 6, 2026
Save £2,118 GBP (59%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,581 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 726562881. Listed at 10 retailers as of November 5, 2026, with prices from £1,463 to £3,581, a £2,118 spread on the same certified stone. NZ Jewellers lists it at £3,581. 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

1.51
Carat
L
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle38.7°
OriginNatural
Grading LabIGI
CertificateIGI 726562881
Dimensions6.99 × 7.89 × 4.68 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.99 mm7.89 mm1.51 ctL / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 726562881
Side View
Table 54.0%Crown 35.5°Girdle: STK-THKPavilion 38.7°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: £3,581 GBP|Low: £1,463 GBP|High: £3,581 GBP|Avg: £1,987 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2£1,463 GBP
Retailer 9£1,680 GBP
Retailer 3£1,684 GBP
Retailer 6£1,713 GBP
Retailer 8£1,715 GBP
Retailer 7£1,792 GBP
Retailer 4£1,977 GBP
Retailer 5£2,090 GBP
NZ Jewellers£3,581 GBP

46 data points across 9 retailers

10 retailers£1,463 GBP to £3,581 GBP

A
Cheapest Retailer
-
£1,463 GBP
B+
Retailer 2
-
£1,680 GBP
View
B+
Retailer 3
-
£1,684 GBP
View
B+
Retailer 4
-
£1,713 GBP
View
B+
Retailer 5
-
£1,715 GBP
View
B+
Retailer 6
-
£1,792 GBP
View
B+
Retailer 7
-
£1,817 GBP
View
B
Retailer 8
-
£1,977 GBP
View
B
Retailer 9
-
£2,090 GBP
View
Most Expensive
C
NZ Jewellers
fde8c355-18a0-49c2-a0c8-669b922cc5df · Nov 5
£3,581 GBP
$4,793 USD
View
9 more retailers have this diamond
Prices start from £1,463 GBPSave up to £2,118 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
1.51ct Heart
£1,463 GBP