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Princess|Natural|IGI

1.50ct H I1 Princess Natural Diamond

EX • H/I1 • IGI 729536634

Shape and cutting style on the report: Princess cut

Certificate IGI 729536634

Diamond specifications and retailer prices

From £1,878 GBP
$2,520 USD
As of November 1, 2026
Save £2,506 GBP (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,384 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural princess diamond

This 1.5ct natural princess sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 729536634. Listed at 8 retailers as of October 30, 2026, with prices from £1,878 to £4,384, a £2,506 spread on the same certified stone. NZ Jewellers lists it at £4,384. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
H
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 729536634
Dimensions6.51 × 6.35 × 4.57 mm
L/W Ratio1.03
Cert comments
Presence of internal laser.
Top View
6.51 mm6.35 mm1.50 ctH / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 729536634
Side View
Table 72.0%Crown 41.9°Girdle: MediumPavilion 40.1°CuletDepth 72.0%

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 1
Current: £2,450 GBP|Low: £1,878 GBP|High: £2,495 GBP|Avg: £2,186 GBP|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5£1,878 GBP
Retailer 3£2,003 GBP
Retailer 2£2,097 GBP
Retailer 1£2,450 GBP
Retailer 4£2,495 GBP

18 data points across 5 retailers

8 retailers£1,878 GBP to £4,384 GBP

A
Cheapest Retailer
-
£1,878 GBP
$2,520 USD
A
Retailer 2
-
£2,003 GBP
$2,688 USD
View
B+
Retailer 3
-
£2,097 GBP
$2,814 USD
View
B+
Retailer 4
-
£2,097 GBP
$2,814 USD
View
B+
Retailer 5
-
£2,177 GBP
$2,922 USD
View
B+
Retailer 6
-
£2,420 GBP
$3,247 USD
View
B+
Retailer 7
-
£2,450 GBP
€3,131 EUR
View
Most Expensive
B
NZ Jewellers
f7fd04ac-7e98-4826-be1a-558f396f0d6b · Oct 30
£4,384 GBP
$5,883 USD
View
7 more retailers have this diamond
Prices start from £1,878 GBPSave up to £2,506 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 Princess
£1,878 GBP