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Round|Lab Grown|IGI

1.50ct H SI2 Round Lab Grown Diamond

ID • H/SI2 • IGI LG436047636

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436047636

Diamond specifications and retailer prices

From £632 GBP
As of November 5, 2026
Save £3,019 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,651 GBP at MOH London · As of November 3, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436047636 or 436047636. Listed at 10 retailers as of November 3, 2026, with prices from £632 to £3,651, a £3,019 spread on the same certified stone. MOH London lists it at £3,651. 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
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436047636
Dimensions7.28 × 7.32 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.28 mm7.32 mm1.50 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436047636
Side View
Table 54.5%Crown 35.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.3%

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 5
Current: £3,651 GBP|Low: £632 GBP|High: £3,699 GBP|Avg: £1,698 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 2£632 GBP
Retailer 3£979 GBP
Retailer 6£1,097 GBP
Retailer 4£1,136 GBP
Retailer 7£1,136 GBP
Retailer 8£1,563 GBP
Retailer 5£1,797 GBP
Retailer 9£2,118 GBP
Retailer 10£2,543 GBP
MOH London£3,651 GBP

15 data points across 10 retailers

10 retailers£632 GBP to £3,651 GBP

A
Cheapest Retailer
-
£632 GBP
A
Retailer 2
-
£979 GBP
View
B+
Retailer 3
-
£1,065 GBP
View
B+
Retailer 4
-
£1,097 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,136 GBP
View
Retailer 6
-
£1,136 GBP
View
Price last confirmed 25 days ago
B
Retailer 7
-
£1,797 GBP
View
B
Retailer 8
-
£2,118 GBP
View
B
Retailer 9
-
£2,129 GBP
View
Most Expensive
B
MOH London
LG436047636 · Nov 3
£3,651 GBP
View
9 more retailers have this diamond
Prices start from £632 GBPSave up to £3,019 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
£632 GBP