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Round|Lab Grown|IGI

1.50ct H SI1 Round Lab Grown Diamond

VG • H/SI1 • IGI LG436073051

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436073051

Diamond specifications and retailer prices

From £840 GBP
As of November 5, 2026
Save £3,063 GBP (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,903 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG436073051 or 436073051. Listed at 11 retailers as of November 5, 2026, with prices from £840 to £3,903, a £3,063 spread on the same certified stone. MOH London lists it at £3,903. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436073051
Dimensions7.30 × 7.32 × 4.41 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.30 mm7.32 mm1.50 ctH / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436073051
Side View
Table 60.5%Crown 33.3°Girdle: UNDPavilion 40.2°Culet: NoneDepth 60.4%

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: £3,903 GBP|Low: £840 GBP|High: £3,966 GBP|Avg: £2,125 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 2£840 GBP
Retailer 4£1,181 GBP
Retailer 7£1,322 GBP
Retailer 5£1,370 GBP
Retailer 8£1,497 GBP
Retailer 9£1,841 GBP
Retailer 6£2,156 GBP
Retailer 3£2,423 GBP
MOH London£3,903 GBP
Retailer 10£3,922 GBP

16 data points across 10 retailers

11 retailers£840 GBP to £3,903 GBP

A
Cheapest Retailer
-
£840 GBP
B+
Retailer 2
-
£1,181 GBP
View
B
Retailer 3
-
£1,285 GBP
View
B
Retailer 4
-
£1,322 GBP
View
Final sale: no returns
Retailer 5
-
£1,370 GBP
View
Price last confirmed 25 days ago
B
Retailer 6
-
£1,370 GBP
View
B
Retailer 7
-
£1,497 GBP
View
B
Retailer 8
-
£2,156 GBP
View
B
Retailer 9
-
£2,423 GBP
View
B
Retailer 10
-
£2,569 GBP
View
Most Expensive
B
MOH London
LG436073051 · Nov 5
£3,903 GBP
View
10 more retailers have this diamond
Prices start from £840 GBPSave up to £3,063 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
£840 GBP