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Round|Lab Grown|IGI

1.50ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG794614463

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794614463

Diamond specifications and retailer prices

From £143 GBP
As of November 5, 2026
Save £683 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £826 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG794614463 or 794614463. Listed at 17 retailers as of November 5, 2026, with prices from £143 to £826, a £683 spread on the same certified stone. MOH London lists it at £826. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794614463
Dimensions7.52 × 7.48 × 4.35 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
7.52 mm7.48 mm1.50 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794614463
Side View
Table 60.0%Crown 32.2°Girdle: MediumPavilion 40.1°Culet: NoneDepth 58.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £826 GBP|Low: £143 GBP|High: £853 GBP|Avg: £392 GBP|-2.9%
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
Retailer 16
November 6, 2026
Retailer 6£143 GBP
Retailer 16£159 GBP
Retailer 15£166 GBP
Retailer 12£177 GBP
Retailer 7£178 GBP
Retailer 3£310 GBP
Retailer 2£314 GBP
Retailer 9£318 GBP
Retailer 8£333 GBP
Retailer 14£424 GBP
Retailer 10£470 GBP
Retailer 11£513 GBP
Retailer 13£569 GBP
Retailer 4£579 GBP
Retailer 5£609 GBP
MOH London£826 GBP

29 data points across 16 retailers

17 retailers£143 GBP to £826 GBP

A
Cheapest Retailer
-
£143 GBP
A
Retailer 2
-
£159 GBP
View
Final sale: no returns
A
Retailer 3
-
£166 GBP
View
A
Retailer 4
-
£177 GBP
View
Retailer 5
-
£178 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£310 GBP
View
A
Retailer 7
-
£314 GBP
View
A
Retailer 8
-
£318 GBP
View
B+
Retailer 9
-
£333 GBP
View
B+
Retailer 10
-
£424 GBP
View
B+
Retailer 11
-
£470 GBP
View
B+
Retailer 12
-
£513 GBP
View
B
Retailer 13
-
£569 GBP
View
B+
Retailer 14
-
£579 GBP
View
B+
Retailer 15
-
£609 GBP
View
B
Retailer 16
-
£632 GBP
View
Most Expensive
B
MOH London
LG794614463 · Nov 5
£826 GBP
View
16 more retailers have this diamond
Prices start from £143 GBPSave up to £683 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
£143 GBP