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Round|Lab Grown|IGI

1.50ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG759503319

Shape and cutting style on the report: Round brilliant

Certificate IGI LG759503319

Diamond specifications and retailer prices

From £139 GBP
As of November 3, 2026
Save £665 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £804 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG759503319 or 759503319. Listed at 18 retailers as of November 2, 2026, with prices from £139 to £804, a £665 spread on the same certified stone. MOH London lists it at £804. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG759503319
Dimensions7.44 × 7.40 × 4.40 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.44 mm7.40 mm1.50 ctF / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG759503319
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £804 GBP|Low: £133 GBP|High: £814 GBP|Avg: £349 GBP
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 6, 2026
Retailer 12£139 GBP
Retailer 3£155 GBP
Retailer 5£161 GBP
Retailer 7£172 GBP
Retailer 15£172 GBP
Retailer 13£232 GBP
Retailer 8£308 GBP
Retailer 9£315 GBP
Retailer 2£316 GBP
Retailer 4£364 GBP
Retailer 10£528 GBP
Retailer 6£553 GBP
Retailer 11£555 GBP
Retailer 14£646 GBP
MOH London£804 GBP

43 data points across 15 retailers

18 retailers£139 GBP to £804 GBP

A
Cheapest Retailer
-
£139 GBP
A
Retailer 2
-
£155 GBP
View
Final sale: no returns
A
Retailer 3
-
£161 GBP
View
Retailer 4
-
£172 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£172 GBP
View
B+
Retailer 6
-
£232 GBP
View
A
Retailer 7
-
£308 GBP
View
A
Retailer 8
-
£310 GBP
View
A
Retailer 9
-
£315 GBP
View
B+
Retailer 10
-
£316 GBP
View
B+
Retailer 11
-
£364 GBP
View
B+
Retailer 12
-
£440 GBP
View
B+
Retailer 13
-
£528 GBP
View
B
Retailer 14
-
£553 GBP
View
B
Retailer 15
-
£555 GBP
View
B
Retailer 16
-
£593 GBP
View
B
Retailer 17
-
£646 GBP
View
Most Expensive
B
MOH London
LG759503319 · Nov 2
£804 GBP
View
17 more retailers have this diamond
Prices start from £139 GBPSave up to £665 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 Round
£139 GBP