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Princess|Lab Grown|IGI

1.50ct E SI1 Princess Lab Grown Diamond

ID • E/SI1 • IGI LG555289407

Shape and cutting style on the report: Princess cut

Certificate IGI LG555289407

Diamond specifications and retailer prices

From £347 GBP
$462 USD
As of October 28, 2026
Save £163 GBP (32%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £510 GBP at Yorxs · As of October 29, 2026
View at Yorxs

About this 1.5ct lab-grown princess diamond

This 1.5ct lab-grown princess sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG555289407 or 555289407. Listed at 2 retailers as of October 28, 2026, with prices from £347 to £510, a £163 spread on the same certified stone. Yorxs lists it at £510. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle49°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG555289407
Dimensions6.25 × 6.03 × 4.35 mm
L/W Ratio1.04
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.25 mm6.03 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG555289407
Side View
Table 71.5%Crown 49°Girdle: Slightly ThickPavilion 36.9°Culet: NoneDepth 72.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: £347 GBP|Low: £347 GBP|High: £875 GBP|Avg: £518 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Yorxs
October 29, 2026
Retailer 1£347 GBP
Retailer 3£364 GBP
Retailer 4£413 GBP
Yorxs£510 GBP
Retailer 2£604 GBP
Retailer 5£875 GBP

10 data points across 6 retailers

2 retailers£347 GBP to £510 GBP

A
Cheapest Retailer
-
£347 GBP
$462 USD
Most Expensive
B
Yorxs
439066401 · Oct 29
£510 GBP
€647 EUR
View
1 more retailer has this diamond
Prices start from £347 GBPSave up to £163 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
£347 GBP