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Princess|Lab Grown|IGI

1.50ct I SI1 Princess Lab Grown Diamond

ID • I/SI1 • IGI LG445038009

Shape and cutting style on the report: Princess cut

Certificate IGI LG445038009

Diamond specifications and retailer prices

From £654 GBP
As of November 4, 2026
Save £2,925 GBP (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,579 GBP at MOH London · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445038009 or 445038009. Listed at 12 retailers as of November 4, 2026, with prices from £654 to £3,579, a £2,925 spread on the same certified stone. MOH London lists it at £3,579. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.3°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445038009
Dimensions6.22 × 6.05 × 4.55 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
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Top View
6.22 mm6.05 mm1.50 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445038009
Side View
Table 71.0%Crown 45.3°Girdle: STK-VTKPavilion 39.7°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 4
Current: £3,579 GBP|Low: £654 GBP|High: £3,632 GBP|Avg: £1,640 GBP|-0.3%
MOH London
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 5, 2026
Retailer 8£654 GBP
Retailer 9£963 GBP
Retailer 14£1,048 GBP
Retailer 15£1,077 GBP
Retailer 10£1,117 GBP
Retailer 13£1,117 GBP
Retailer 7£1,215 GBP
Retailer 3£1,245 GBP
Retailer 5£1,539 GBP
Retailer 2£1,585 GBP
Retailer 11£1,768 GBP
Retailer 4£2,082 GBP
Retailer 12£2,093 GBP
Retailer 6£3,198 GBP
MOH London£3,579 GBP

28 data points across 15 retailers

12 retailers£654 GBP to £3,579 GBP

A
Cheapest Retailer
-
£654 GBP
B+
Retailer 2
-
£963 GBP
View
B+
Retailer 3
-
£1,048 GBP
View
B+
Retailer 4
-
£1,077 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,117 GBP
View
Retailer 6
-
£1,117 GBP
View
Price last confirmed 25 days ago
B
Retailer 7
-
£1,245 GBP
View
B
Retailer 8
-
£1,585 GBP
View
B
Retailer 9
-
£1,768 GBP
View
B
Retailer 10
-
£2,082 GBP
View
B
Retailer 11
-
£2,093 GBP
View
Most Expensive
B
MOH London
LG445038009 · Nov 5
£3,579 GBP
View
11 more retailers have this diamond
Prices start from £654 GBPSave up to £2,925 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
£654 GBP