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Princess|Natural|IGI

1.51ct I SI2 Princess Natural Diamond

VG • I/SI2 • IGI 660411191

Shape and cutting style on the report: Princess cut

Certificate IGI 660411191

Diamond specifications and retailer prices

From £1,779 GBP
As of November 4, 2026
Save £2,373 GBP (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,152 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 660411191. Listed at 15 retailers as of November 4, 2026, with prices from £1,779 to £4,152, a £2,373 spread on the same certified stone. NZ Jewellers lists it at £4,152. 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
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle46°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 660411191
Dimensions6.31 × 6.10 × 4.58 mm
L/W Ratio1.03
Culet sizePointed
Top View
6.31 mm6.10 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 660411191
Side View
Table 71.0%Crown 46°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 75.1%

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 4
Current: £4,152 GBP|Low: £1,680 GBP|High: £4,152 GBP|Avg: £2,274 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
Retailer 16
November 6, 2026
Retailer 3£1,779 GBP
Retailer 14£1,812 GBP
Retailer 15£1,833 GBP
Retailer 5£1,857 GBP
Retailer 2£1,926 GBP
Retailer 6£1,927 GBP
Retailer 12£1,986 GBP
Retailer 16£1,986 GBP
Retailer 11£2,062 GBP
Retailer 8£2,090 GBP
Retailer 4£2,092 GBP
Retailer 13£2,291 GBP
Retailer 7£2,362 GBP
Retailer 9£2,466 GBP
Retailer 10£3,470 GBP
NZ Jewellers£4,152 GBP

45 data points across 16 retailers

15 retailers£1,779 GBP to £4,152 GBP

A
Cheapest Retailer
-
£1,779 GBP
Retailer 2
-
£1,812 GBP
View
Price last confirmed 16 days ago
B+
Retailer 3
-
£1,833 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,857 GBP
View
A
Retailer 5
-
£1,926 GBP
View
B+
Retailer 6
-
£1,927 GBP
View
Retailer 7
-
£1,986 GBP
View
Price last confirmed 21 days ago
B+
Retailer 8
-
£1,986 GBP
View
B+
Retailer 9
-
£2,062 GBP
View
B+
Retailer 10
-
£2,090 GBP
View
B+
Retailer 11
-
£2,092 GBP
View
B+
Retailer 12
-
£2,291 GBP
View
B+
Retailer 13
-
£2,466 GBP
View
B+
Retailer 14
-
£3,470 GBP
View
Most Expensive
B
NZ Jewellers
8fbd806a-dda4-45ff-a45c-f1401b98c207 · Nov 5
£4,152 GBP
$5,557 USD
View
14 more retailers have this diamond
Prices start from £1,779 GBPSave up to £2,373 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
£1,779 GBP