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Heart|Natural|IGI

1.51ct D IF Heart Natural Diamond

VG • D/IF • IGI 600359731

Shape and cutting style on the report: Heart brilliant

Certificate IGI 600359731

Diamond specifications and retailer prices

From £7,203 GBP
As of November 4, 2026
Save £5,341 GBP (43%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £12,544 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 600359731. Listed at 13 retailers as of November 3, 2026, with prices from £7,203 to £12,544, a £5,341 spread on the same certified stone. NZ Jewellers lists it at £12,544. 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
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle37.5°
OriginNatural
Grading LabIGI
CertificateIGI 600359731
Dimensions6.68 × 7.82 × 4.73 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Top View
6.68 mm7.82 mm1.51 ctD / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 600359731
Side View
Table 63.0%Crown 45.2°Girdle: MED-THKPavilion 37.5°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
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 4
Current: £12,544 GBP|Low: £6,849 GBP|High: £13,192 GBP|Avg: £9,311 GBP|-4.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 11£7,203 GBP
Retailer 6£7,334 GBP
Retailer 4£7,584 GBP
Retailer 10£7,987 GBP
Retailer 2£8,165 GBP
Retailer 5£8,522 GBP
Retailer 8£8,737 GBP
Retailer 12£9,000 GBP
Retailer 9£9,610 GBP
Retailer 13£10,385 GBP
Retailer 3£11,342 GBP
Retailer 7£12,328 GBP
NZ Jewellers£12,544 GBP

23 data points across 13 retailers

13 retailers£7,203 GBP to £12,544 GBP

A
Cheapest Retailer
-
£7,203 GBP
A
Retailer 2
-
£7,334 GBP
View
A
Retailer 3
-
£7,584 GBP
View
A
Retailer 4
-
£7,987 GBP
View
A
Retailer 5
-
£8,165 GBP
View
Retailer 6
-
£8,522 GBP
View
Price last confirmed 11 days ago
A
Retailer 7
-
£8,737 GBP
View
Final sale: no returns
A
Retailer 8
-
£9,000 GBP
View
A
Retailer 9
-
£9,610 GBP
View
A
Retailer 10
-
£10,385 GBP
View
B+
Retailer 11
-
£11,342 GBP
View
B+
Retailer 12
-
£12,328 GBP
View
Most Expensive
B+
NZ Jewellers
1b7932b8-bb09-40bb-bfe3-3c1acaaca074 · Nov 3
£12,544 GBP
$16,934 USD
View
12 more retailers have this diamond
Prices start from £7,203 GBPSave up to £5,341 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
£7,203 GBP