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Heart|Natural|IGI

1.51ct K IF Heart Natural Diamond

VG • K/IF • IGI 738527953

Shape and cutting style on the report: Heart brilliant

Certificate IGI 738527953

Diamond specifications and retailer prices

From £1,942 GBP
As of November 2, 2026
Save £2,558 GBP (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,500 GBP at NZ Jewellers · As of November 3, 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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 738527953. Listed at 7 retailers as of November 2, 2026, with prices from £1,942 to £4,500, a £2,558 spread on the same certified stone. NZ Jewellers lists it at £4,500. 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
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle42.2°
OriginNatural
Grading LabIGI
CertificateIGI 738527953
Dimensions6.83 × 8.07 × 4.88 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Top View
6.83 mm8.07 mm1.51 ctK / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 738527953
Side View
Table 61.0%Crown 36.6°Girdle: MED-THKPavilion 42.2°Culet: NoneDepth 60.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £4,500 GBP|Low: £1,942 GBP|High: £4,545 GBP|Avg: £2,713 GBP|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2£1,942 GBP
Retailer 3£2,069 GBP
Retailer 5£2,152 GBP
Retailer 6£2,235 GBP
Retailer 7£2,241 GBP
Retailer 9£2,583 GBP
Retailer 8£2,633 GBP
Retailer 4£3,604 GBP
NZ Jewellers£4,500 GBP

29 data points across 9 retailers

7 retailers£1,942 GBP to £4,500 GBP

A
Cheapest Retailer
-
£1,942 GBP
A
Retailer 2
-
£2,069 GBP
View
A
Retailer 3
-
£2,152 GBP
View
A
Retailer 4
-
£2,235 GBP
View
A
Retailer 5
-
£2,241 GBP
View
Retailer 6
-
£3,604 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
NZ Jewellers
bafdbc04-4b4b-49f9-a929-0196fa7d27c5 · Nov 3
£4,500 GBP
$6,023 USD
View
6 more retailers have this diamond
Prices start from £1,942 GBPSave up to £2,558 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
£1,942 GBP