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Heart|Natural|IGI

1.51ct E SI1 Heart Natural Diamond

VG • E/SI1 • IGI 802615393

Shape and cutting style on the report: Heart brilliant

Certificate IGI 802615393

Diamond specifications and retailer prices

From £3,460 GBP
₹441,488 INR
As of October 30, 2026
Save £4,450 GBP (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £7,910 GBP at NZ Jewellers · As of October 30, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 802615393. Listed at 15 retailers as of October 30, 2026, with prices from £3,460 to £7,910, a £4,450 spread on the same certified stone. NZ Jewellers lists it at £7,910. 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
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.1°
Pavilion angle37.3°
OriginNatural
Grading LabIGI
CertificateIGI 802615393
Dimensions7.22 × 8.00 × 4.51 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Top View
7.22 mm8.00 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 802615393
Side View
Table 62.0%Crown 34.1°Girdle: MED-STKPavilion 37.3°Culet: NoneDepth 56.4%

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: Oct 30
Current: £7,910 GBP|Low: £3,439 GBP|High: £7,910 GBP|Avg: £5,053 GBP
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
Retailer 14
Retailer 15
October 30, 2026
Retailer 2£3,460 GBP
Retailer 6£4,124 GBP
Retailer 4£4,140 GBP
Retailer 5£4,365 GBP
Retailer 7£4,400 GBP
Retailer 8£4,438 GBP
Retailer 14£4,606 GBP
Retailer 9£4,729 GBP
Retailer 10£4,729 GBP
Retailer 11£4,729 GBP
Retailer 13£5,160 GBP
Retailer 15£5,456 GBP
Retailer 3£5,759 GBP
Retailer 12£7,005 GBP
NZ Jewellers£7,910 GBP

23 data points across 15 retailers

15 retailers£3,460 GBP to £7,910 GBP

A
Cheapest Retailer
-
£3,460 GBP
₹441,488 INR
B+
Retailer 2
-
£4,124 GBP
$5,526 USD
View
B+
Retailer 3
-
£4,140 GBP
$5,547 USD
View
B+
Retailer 4
-
£4,365 GBP
$5,849 USD
View
Final sale: no returns
B+
Retailer 5
-
£4,400 GBP
$5,895 USD
View
B+
Retailer 6
-
£4,438 GBP
View
B+
Retailer 7
-
£4,606 GBP
View
B+
Retailer 8
-
£4,729 GBP
$6,337 USD
View
B+
Retailer 9
-
£4,729 GBP
$6,337 USD
View
B+
Retailer 10
-
£4,847 GBP
$6,494 USD
View
B+
Retailer 11
-
£5,160 GBP
€6,584 EUR
View
B
Retailer 12
-
£5,456 GBP
$7,311 USD
View
B
Retailer 13
-
£5,759 GBP
ZAR 124,656 ZAR
View
B
Retailer 14
-
£7,005 GBP
View
Most Expensive
B
NZ Jewellers
cfe0ad0c-2fb3-4676-af13-72a7da7112f9 · Oct 30
£7,910 GBP
$10,598 USD
View
14 more retailers have this diamond
Prices start from £3,460 GBPSave up to £4,450 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
£3,460 GBP