Princess|Lab Grown|IGI

1.50ct K SI1 Princess Lab Grown Diamond

ID • K/SI1 • IGI LG447098409

Shape and cutting style on the report: Princess cut

Certificate IGI LG447098409

Diamond specifications and retailer prices

From £677 GBP
As of November 6, 2026
Save £1,531 GBP (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,677 GBP at MOH London · As of October 29, 2026
View at MOH London

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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447098409 or 447098409. Listed at 10 retailers as of November 6, 2026, with a 226% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447098409
Dimensions6.29 × 6.14 × 4.47 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
undefined
Top View
6.29 mm6.14 mm1.50 ctK / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447098409
Side View
Table 66.0%Crown 43.1°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 6
Current: £2,677 GBP|Low: £650 GBP|High: £2,699 GBP|Avg: £1,321 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5£677 GBP
Retailer 6£785 GBP
Retailer 8£785 GBP
Retailer 3£914 GBP
Retailer 2£1,091 GBP
Retailer 9£1,162 GBP
Retailer 7£1,259 GBP
Retailer 4£1,747 GBP
MOH London£2,677 GBP

40 data points across 9 retailers

10 retailers£677 GBP to £2,207 GBP

A
Cheapest Retailer
-
£677 GBP
A
Retailer 2
-
£736 GBP
View
A
Retailer 3
-
£785 GBP
View
Retailer 4
-
£785 GBP
View
Price last confirmed 25 days ago
B+
Retailer 5
-
£914 GBP
View
B+
Retailer 6
-
£1,091 GBP
View
B+
Retailer 7
-
£1,259 GBP
View
B
Retailer 8
-
£1,747 GBP
View
B
Retailer 9
-
£2,207 GBP
View
Most Expensive
MOH London
LG447098409 · Oct 29
£2,677 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from £677 GBPSave up to £1,531 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
£677 GBP