Princess|Natural|IGI

1.51ct H I1 Princess Natural Diamond

EX • H/I1 • IGI 488124104

Shape and cutting style on the report: Princess cut

Certificate IGI 488124104

Diamond specifications and retailer prices

From £1,804 GBP
$2,417 USD
As of November 1, 2026
Save £2,408 GBP (57%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,489 GBP at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.51ct natural princess diamond

This 1.51ct 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 488124104. Listed at 10 retailers as of October 30, 2026, with a 134% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle48.6°
Pavilion angle38.7°
OriginNatural
Grading LabIGI
CertificateIGI 488124104
Dimensions6.40 × 6.40 × 4.43 mm
L/W Ratio1.00
Culet sizePointed
Top View
6.40 mm6.40 mm1.51 ctH / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 488124104
Side View
Table 71.0%Crown 48.6°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 69.2%

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: £4,212 GBP|Low: £1,804 GBP|High: £4,212 GBP|Avg: £2,406 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6£1,804 GBP
Retailer 4£2,014 GBP
Retailer 5£2,014 GBP
Retailer 3£2,092 GBP
Retailer 7£2,325 GBP
Retailer 2£2,515 GBP
Retailer 8£2,555 GBP
NZ Jewellers£4,212 GBP

14 data points across 8 retailers

10 retailers£1,804 GBP to £4,212 GBP

A
Cheapest Retailer
-
£1,804 GBP
$2,417 USD
B+
Retailer 2
-
£2,014 GBP
$2,699 USD
View
B+
Retailer 3
-
£2,014 GBP
$2,699 USD
View
A
Retailer 4
-
£2,092 GBP
$2,803 USD
View
Retailer 5
-
£2,147 GBP
$2,877 USD
View
Price last confirmed 40 days ago
B+
Retailer 6
-
£2,325 GBP
$3,115 USD
View
Retailer 7
-
£2,478 GBP
$3,320 USD
View
Price last confirmed 39 days ago
B+
Retailer 8
-
£2,515 GBP
€3,209 EUR
View
B
Retailer 9
-
£4,212 GBP
$5,644 USD
View
Most Expensive
NZ Jewellers
03896d3e-1a4c-432d-89d3-bf5be3287d9d · Sep 21
£4,489 GBP
$6,015 USD
View
Price last confirmed 42 days ago
9 more retailers have this diamond
Prices start from £1,804 GBPSave up to £2,408 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 Princess
£1,804 GBP