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Heart|Natural|IGI

1.51ct K VS1 Heart Natural Diamond

VG • K/VS1 • IGI 737520470

Shape and cutting style on the report: Heart brilliant

Certificate IGI 737520470

Diamond specifications and retailer prices

From £1,952 GBP
As of November 6, 2026
Save £2,045 GBP (51%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,997 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 K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 737520470. Listed at 12 retailers as of November 5, 2026, with prices from £1,952 to £3,997, a £2,045 spread on the same certified stone. NZ Jewellers lists it at £3,997. 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
K
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.4°
OriginNatural
Grading LabIGI
CertificateIGI 737520470
Dimensions7.09 × 7.52 × 4.77 mm
L/W Ratio1.06
Girdle conditionFaceted
Top View
7.09 mm7.52 mm1.51 ctK / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 737520470
Side View
Table 59.0%Crown 38°Girdle: MED-THKPavilion 40.4°CuletDepth 63.4%

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 6
Current: £3,997 GBP|Low: £1,952 GBP|High: £3,997 GBP|Avg: £2,633 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£1,952 GBP
Retailer 3£2,150 GBP
Retailer 10£2,208 GBP
Retailer 7£2,294 GBP
Retailer 8£2,383 GBP
Retailer 5£2,647 GBP
Retailer 6£2,800 GBP
Retailer 4£2,840 GBP
Retailer 9£3,836 GBP
NZ Jewellers£3,997 GBP

38 data points across 10 retailers

12 retailers£1,952 GBP to £3,997 GBP

A
Cheapest Retailer
-
£1,952 GBP
A
Retailer 2
-
£2,150 GBP
View
B+
Retailer 3
-
£2,208 GBP
View
B+
Retailer 4
-
£2,294 GBP
View
B+
Retailer 5
-
£2,331 GBP
View
B+
Retailer 6
-
£2,383 GBP
View
B+
Retailer 7
-
£2,400 GBP
View
B+
Retailer 8
-
£2,647 GBP
View
B+
Retailer 9
-
£2,800 GBP
View
B+
Retailer 10
-
£2,840 GBP
View
B
Retailer 11
-
£3,836 GBP
View
Most Expensive
B
NZ Jewellers
a6166773-6695-4ea6-8c82-3e5f082e975b · Nov 5
£3,997 GBP
$5,350 USD
View
11 more retailers have this diamond
Prices start from £1,952 GBPSave up to £2,045 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
£1,952 GBP