Princess|Natural|IGI

1.50ct J SI1 Princess Natural Diamond

EX • J/SI1 • IGI 778617681

Shape and cutting style on the report: Princess cut

Certificate IGI 778617681

Diamond specifications and retailer prices

From £1,504 GBP
₹191,917 INR
As of November 1, 2026
Save £2,616 GBP (63%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,120 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 778617681. Listed at 19 retailers as of October 30, 2026, with prices from £1,504 to £4,120, a £2,616 spread on the same certified stone. NZ Jewellers lists it at £4,120. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle51.2°
Pavilion angle38.1°
OriginNatural
Grading LabIGI
CertificateIGI 778617681
Dimensions6.15 × 6.04 × 4.40 mm
L/W Ratio1.02
Culet sizePointed
Top View
6.15 mm6.04 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 778617681
Side View
Table 73.0%Crown 51.2°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 72.8%

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: £1,504 GBP|Low: £1,500 GBP|High: £3,495 GBP|Avg: £2,258 GBP|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 1£1,504 GBP
Retailer 6£1,784 GBP
Retailer 7£2,046 GBP
Retailer 3£2,144 GBP
Retailer 4£2,422 GBP
Retailer 5£2,461 GBP
Retailer 2£3,453 GBP

38 data points across 7 retailers

19 retailers£1,504 GBP to £4,120 GBP

A
Cheapest Retailer
-
£1,504 GBP
₹191,917 INR
A
Retailer 2
-
£1,764 GBP
$2,364 USD
View
A
Retailer 3
-
£1,784 GBP
$2,390 USD
View
A
Retailer 4
-
£1,917 GBP
$2,569 USD
View
A
Retailer 5
-
£1,944 GBP
$2,605 USD
View
B+
Retailer 6
-
£1,970 GBP
$2,640 USD
View
B+
Retailer 7
-
£1,970 GBP
$2,640 USD
View
B+
Retailer 8
-
£2,046 GBP
$2,742 USD
View
B+
Retailer 9
-
£2,076 GBP
$2,782 USD
View
B+
Retailer 10
-
£2,076 GBP
$2,782 USD
View
Retailer 11
-
£2,116 GBP
$2,835 USD
View
Price last confirmed 11 days ago
A
Retailer 12
-
£2,144 GBP
View
Retailer 13
-
£2,274 GBP
$3,047 USD
View
Price last confirmed 56 days ago
B+
Retailer 14
-
£2,274 GBP
$3,047 USD
View
B+
Retailer 15
-
£2,321 GBP
$3,110 USD
View
B+
Retailer 16
-
£2,422 GBP
ZAR 52,434 ZAR
View
B+
Retailer 17
-
£2,461 GBP
€3,140 EUR
View
B
Retailer 18
-
£3,453 GBP
View
Most Expensive
B
NZ Jewellers
5f9c12c0-2ac3-4514-8ded-5db053f7fc23 · Oct 30
£4,120 GBP
$5,520 USD
View
18 more retailers have this diamond
Prices start from £1,504 GBPSave up to £2,616 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
£1,504 GBP