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Princess|Natural|IGI

1.51ct H SI2 Princess Natural Diamond

VG • H/SI2 • IGI 723518518

Shape and cutting style on the report: Princess cut

Certificate IGI 723518518

Diamond specifications and retailer prices

From £1,903 GBP
As of November 6, 2026
Save £2,305 GBP (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,208 GBP at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 723518518. Listed at 12 retailers as of November 5, 2026, with prices from £1,903 to £4,208, a £2,305 spread on the same certified stone. NZ Jewellers lists it at £4,208. 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
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle49.6°
Pavilion angle37.5°
OriginNatural
Grading LabIGI
CertificateIGI 723518518
Dimensions6.09 × 6.01 × 4.40 mm
L/W Ratio1.01
Culet sizePointed
Top View
6.09 mm6.01 mm1.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 723518518
Side View
Table 71.0%Crown 49.6°Girdle: STK-THKPavilion 37.5°Culet: NoneDepth 73.2%

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 6
Current: £2,327 GBP|Low: £1,851 GBP|High: £4,088 GBP|Avg: £2,423 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7£1,853 GBP
Retailer 10£1,903 GBP
Retailer 9£1,960 GBP
Retailer 8£2,019 GBP
Retailer 2£2,188 GBP
Retailer 11£2,188 GBP
Retailer 3£2,208 GBP
Retailer 1£2,327 GBP
Retailer 12£2,524 GBP
Retailer 5£2,811 GBP
Retailer 4£2,894 GBP
Retailer 6£4,028 GBP

44 data points across 12 retailers

12 retailers£1,903 GBP to £4,208 GBP

A
Cheapest Retailer
-
£1,903 GBP
A
Retailer 2
-
£1,960 GBP
View
A
Retailer 3
-
£2,019 GBP
View
Final sale: no returns
B+
Retailer 4
-
£2,188 GBP
View
Retailer 5
-
£2,188 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£2,208 GBP
View
B+
Retailer 7
-
£2,273 GBP
View
A
Retailer 8
-
£2,327 GBP
View
B+
Retailer 9
-
£2,524 GBP
View
B+
Retailer 10
-
£2,811 GBP
View
B
Retailer 11
-
£4,028 GBP
View
Most Expensive
B
NZ Jewellers
d1292a4f-3572-4b93-a0dc-e34e9f813e81 · Nov 5
£4,208 GBP
$5,632 USD
View
11 more retailers have this diamond
Prices start from £1,903 GBPSave up to £2,305 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
£1,903 GBP