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Round|Lab Grown|IGI

1.50ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG681584379

Shape and cutting style on the report: Round brilliant

Certificate IGI LG681584379

Diamond specifications and retailer prices

From £131 GBP
As of November 5, 2026
Save £625 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £756 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG681584379 or 681584379. Listed at 14 retailers as of November 5, 2026, with prices from £131 to £756, a £625 spread on the same certified stone. MOH London lists it at £756. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681584379
Dimensions7.32 × 7.36 × 4.52 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
7.32 mm7.36 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681584379
Side View
Table 58.0%Crown 35.3°Girdle: MediumPavilion 41°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
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: £756 GBP|Low: £131 GBP|High: £936 GBP|Avg: £412 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 16
November 6, 2026
Retailer 13£131 GBP
Retailer 12£152 GBP
Retailer 6£162 GBP
Retailer 3£181 GBP
Retailer 9£278 GBP
Retailer 14£278 GBP
Retailer 2£287 GBP
Retailer 4£288 GBP
Retailer 16£305 GBP
Retailer 15£355 GBP
Retailer 5£522 GBP
Retailer 10£531 GBP
Retailer 11£551 GBP
MOH London£756 GBP
Retailer 7£791 GBP
Retailer 8£936 GBP

10 data points across 16 retailers

14 retailers£131 GBP to £756 GBP

A
Cheapest Retailer
-
£131 GBP
A
Retailer 2
-
£152 GBP
View
A
Retailer 3
-
£162 GBP
View
A
Retailer 4
-
£181 GBP
View
A
Retailer 5
-
£278 GBP
View
Retailer 6
-
£278 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£287 GBP
View
B+
Retailer 8
-
£288 GBP
View
A
Retailer 9
-
£305 GBP
View
A
Retailer 10
-
£355 GBP
View
B+
Retailer 11
-
£522 GBP
View
B+
Retailer 12
-
£531 GBP
View
B
Retailer 13
-
£551 GBP
View
Most Expensive
B
MOH London
LG681584379 · Nov 5
£756 GBP
View
13 more retailers have this diamond
Prices start from £131 GBPSave up to £625 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
£131 GBP