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Princess|Natural|IGI

1.50ct I SI1 Princess Natural Diamond

VG • I/SI1 • IGI 576355688

Shape and cutting style on the report: Princess cut

Certificate IGI 576355688

Diamond specifications and retailer prices

From £2,350 GBP
$3,153 USD
As of November 1, 2026
Save £2,262 GBP (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,611 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 576355688. Listed at 15 retailers as of October 30, 2026, with prices from £2,350 to £4,611, a £2,262 spread on the same certified stone. NZ Jewellers lists it at £4,611. 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

1.50
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle51.6°
Pavilion angle37.9°
OriginNatural
Grading LabIGI
CertificateIGI 576355688
Dimensions6.01 × 6.00 × 4.51 mm
L/W Ratio1.00
Culet sizePointed
Top View
6.01 mm6.00 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 576355688
Side View
Table 72.0%Crown 51.6°Girdle: Slightly ThickPavilion 37.9°Culet: NoneDepth 75.2%

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: £4,611 GBP|Low: £2,350 GBP|High: £4,652 GBP|Avg: £2,967 GBP|-0.9%
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
November 2, 2026
Retailer 4£2,350 GBP
Retailer 5£2,388 GBP
Retailer 7£2,409 GBP
Retailer 6£2,443 GBP
Retailer 8£2,511 GBP
Retailer 15£2,545 GBP
Retailer 3£2,647 GBP
Retailer 11£2,647 GBP
Retailer 2£2,748 GBP
Retailer 10£2,817 GBP
Retailer 13£3,054 GBP
Retailer 9£3,098 GBP
Retailer 12£3,253 GBP
Retailer 14£4,450 GBP
NZ Jewellers£4,611 GBP

27 data points across 15 retailers

15 retailers£2,350 GBP to £4,611 GBP

A
Cheapest Retailer
-
£2,350 GBP
$3,153 USD
Retailer 2
-
£2,388 GBP
$3,205 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
£2,409 GBP
$3,233 USD
View
A
Retailer 4
-
£2,443 GBP
$3,278 USD
View
Final sale: no returns
A
Retailer 5
-
£2,511 GBP
View
B+
Retailer 6
-
£2,545 GBP
$3,415 USD
View
A
Retailer 7
-
£2,647 GBP
$3,552 USD
View
A
Retailer 8
-
£2,647 GBP
$3,552 USD
View
A
Retailer 9
-
£2,748 GBP
$3,688 USD
View
A
Retailer 10
-
£2,817 GBP
View
A
Retailer 11
-
£3,054 GBP
$4,098 USD
View
B+
Retailer 12
-
£3,098 GBP
€3,959 EUR
View
B+
Retailer 13
-
£3,253 GBP
ZAR 70,529 ZAR
View
B
Retailer 14
-
£4,450 GBP
View
Most Expensive
B
NZ Jewellers
12226da1-5ba8-4dad-abd7-d82c3bd194d4 · Oct 30
£4,611 GBP
$6,188 USD
View
14 more retailers have this diamond
Prices start from £2,350 GBPSave up to £2,262 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
£2,350 GBP