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Princess|Natural|IGI

1.51ct I SI2 Princess Natural Diamond

VG • I/SI2 • IGI 483105789

Shape and cutting style on the report: Rectangular princess

Certificate IGI 483105789

Diamond specifications and retailer prices

From £3,520 GBP
As of October 31, 2026
Save £4,528 GBP (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £8,049 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 483105789. Listed at 18 retailers as of October 31, 2026, with prices from £3,520 to £8,049, a £4,528 spread on the same certified stone. NZ Jewellers lists it at £8,049. 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
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle52.6°
Pavilion angle38.2°
OriginNatural
Grading LabIGI
CertificateIGI 483105789
Dimensions6.54 × 6.04 × 4.48 mm
L/W Ratio1.08
Culet sizePointed
Top View
6.54 mm6.04 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 483105789
Side View
Table 74.5%Crown 52.6°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 74.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £4,669 GBP|Low: £3,511 GBP|High: £7,174 GBP|Avg: £4,837 GBP|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5£3,520 GBP
Retailer 9£4,050 GBP
Retailer 6£4,184 GBP
Retailer 7£4,197 GBP
Retailer 8£4,442 GBP
Retailer 1£4,669 GBP
Retailer 10£4,812 GBP
Retailer 3£5,228 GBP
Retailer 2£5,553 GBP
Retailer 4£7,089 GBP

42 data points across 10 retailers

18 retailers£3,520 GBP to £8,049 GBP

B+
Cheapest Retailer
-
£3,520 GBP
B
Retailer 2
-
£4,050 GBP
View
Retailer 3
-
£4,184 GBP
View
Price last confirmed 16 days ago
B
Retailer 4
-
£4,197 GBP
View
B
Retailer 5
-
£4,379 GBP
View
B
Retailer 6
-
£4,442 GBP
View
Final sale: no returns
B
Retailer 7
-
£4,669 GBP
View
Retailer 8
-
£4,812 GBP
View
Price last confirmed 45 days ago
B
Retailer 9
-
£4,812 GBP
View
Retailer 10
-
£4,812 GBP
View
Price last confirmed 8 days ago
B
Retailer 11
-
£4,812 GBP
View
B
Retailer 12
-
£4,930 GBP
View
B
Retailer 13
-
£5,228 GBP
View
Retailer 14
-
£5,553 GBP
View
Price last confirmed 43 days ago
B
Retailer 15
-
£5,553 GBP
View
C
Retailer 16
-
£7,089 GBP
View
Retailer 17
-
£8,049 GBP
View
Price last confirmed 46 days ago
Most Expensive
C
NZ Jewellers
7ab1fb38-6594-480f-aaaa-66f0a9e9838b · Nov 5
£8,049 GBP
$10,773 USD
View
17 more retailers have this diamond
Prices start from £3,520 GBPSave up to £4,528 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.

B+
1.51ct Princess
£3,520 GBP