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Round|Lab Grown|IGI

1.50ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG799643072

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799643072

Diamond specifications and retailer prices

From £146 GBP
As of November 5, 2026
Save £699 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £845 GBP at MOH London · As of November 5, 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 LG799643072 or 799643072. Listed at 18 retailers as of November 5, 2026, with prices from £146 to £845, a £699 spread on the same certified stone. MOH London lists it at £845. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799643072
Dimensions7.39 × 7.36 × 4.48 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.39 mm7.36 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799643072
Side View
Table 60.0%Crown 33.1°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 60.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £845 GBP|Low: £146 GBP|High: £867 GBP|Avg: £412 GBP|-2.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
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Retailer 8
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Retailer 10
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Retailer 12
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Retailer 18
November 6, 2026
Retailer 9£146 GBP
Retailer 7£163 GBP
Retailer 4£169 GBP
Retailer 6£181 GBP
Retailer 18£181 GBP
Retailer 10£313 GBP
Retailer 17£315 GBP
Retailer 11£325 GBP
Retailer 2£331 GBP
Retailer 15£390 GBP
Retailer 16£428 GBP
Retailer 12£481 GBP
Retailer 14£528 GBP
Retailer 3£583 GBP
Retailer 8£591 GBP
Retailer 5£622 GBP
Retailer 13£832 GBP
MOH London£845 GBP

29 data points across 18 retailers

18 retailers£146 GBP to £845 GBP

A
Cheapest Retailer
-
£146 GBP
A
Retailer 2
-
£163 GBP
View
Final sale: no returns
A
Retailer 3
-
£169 GBP
View
Retailer 4
-
£181 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£181 GBP
View
A
Retailer 6
-
£313 GBP
View
B+
Retailer 7
-
£315 GBP
View
A
Retailer 8
-
£325 GBP
View
A
Retailer 9
-
£331 GBP
View
B+
Retailer 10
-
£390 GBP
View
B+
Retailer 11
-
£428 GBP
View
B+
Retailer 12
-
£481 GBP
View
B+
Retailer 13
-
£528 GBP
View
B+
Retailer 14
-
£583 GBP
View
B+
Retailer 15
-
£591 GBP
View
B+
Retailer 16
-
£622 GBP
View
B
Retailer 17
-
£832 GBP
View
Most Expensive
B
MOH London
LG799643072 · Nov 5
£845 GBP
View
17 more retailers have this diamond
Prices start from £146 GBPSave up to £699 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
£146 GBP