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Heart|Natural|IGI

1.50ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 803629336

Shape and cutting style on the report: Heart brilliant

Certificate IGI 803629336

Diamond specifications and retailer prices

From £2,062 GBP
$2,767 USD
As of October 31, 2026
Save £1,789 GBP (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,134 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 803629336. Listed at 15 retailers as of October 31, 2026, with a 87% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle39.3°
OriginNatural
Grading LabIGI
CertificateIGI 803629336
Dimensions7.11 × 7.76 × 4.54 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Top View
7.11 mm7.76 mm1.50 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629336
Side View
Table 58.0%Crown 37.2°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 58.5%

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 31
Current: £2,534 GBP|Low: £2,008 GBP|High: £4,016 GBP|Avg: £2,513 GBP|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8£2,062 GBP
Retailer 10£2,125 GBP
Retailer 3£2,128 GBP
Retailer 9£2,203 GBP
Retailer 2£2,271 GBP
Retailer 11£2,373 GBP
Retailer 5£2,409 GBP
Retailer 4£2,450 GBP
Retailer 1£2,534 GBP
Retailer 7£2,830 GBP
Retailer 6£3,851 GBP

42 data points across 11 retailers

15 retailers£2,062 GBP to £3,851 GBP

A
Cheapest Retailer
-
£2,062 GBP
$2,767 USD
A
Retailer 2
-
£2,125 GBP
$2,851 USD
View
Final sale: no returns
B+
Retailer 3
-
£2,128 GBP
$2,855 USD
View
B+
Retailer 4
-
£2,203 GBP
$2,956 USD
View
B+
Retailer 5
-
£2,271 GBP
A$4,688 AUD
View
Retailer 6
-
£2,373 GBP
$3,185 USD
View
Price last confirmed 34 days ago
Retailer 7
-
£2,373 GBP
$3,185 USD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
£2,409 GBP
$3,233 USD
View
B+
Retailer 9
-
£2,450 GBP
View
B+
Retailer 10
-
£2,534 GBP
€3,238 EUR
View
Retailer 11
-
£2,738 GBP
$3,674 USD
View
Price last confirmed 34 days ago
Retailer 12
-
£2,738 GBP
$3,674 USD
View
Price last confirmed 48 days ago
B+
Retailer 13
-
£2,830 GBP
ZAR 61,357 ZAR
View
B
Retailer 14
-
£3,851 GBP
View
Most Expensive
NZ Jewellers
5da33c6a-fb2d-4105-aba0-07ed74d66d79 · Sep 30
£4,134 GBP
$5,548 USD
View
Price last confirmed 33 days ago
14 more retailers have this diamond
Prices start from £2,062 GBPSave up to £1,789 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
1.50ct Heart
£2,062 GBP