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Radiant|Lab Grown|IGI

1.50ct F SI1 Radiant Lab Grown Diamond

VG • F/SI1 • IGI LG825665219

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG825665219

Diamond specifications and retailer prices

From £146 GBP
As of November 6, 2026
Save £700 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £846 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG825665219 or 825665219. Listed at 16 retailers as of November 5, 2026, with prices from £146 to £846, a £700 spread on the same certified stone. MOH London lists it at £846. 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
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26.9°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825665219
Dimensions8.09 × 5.53 × 3.88 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.09 mm5.53 mm1.50 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825665219
Side View
Table 64.0%Crown 26.9°Girdle: MediumPavilion 38°Culet: NoneDepth 70.2%

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 6
Current: £846 GBP|Low: £140 GBP|High: £859 GBP|Avg: £426 GBP|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 8£146 GBP
Retailer 10£182 GBP
Retailer 5£231 GBP
Retailer 4£303 GBP
Retailer 3£317 GBP
Retailer 2£327 GBP
Retailer 7£472 GBP
Retailer 6£538 GBP
Retailer 11£583 GBP
Retailer 9£747 GBP
MOH London£846 GBP

40 data points across 11 retailers

16 retailers£146 GBP to £846 GBP

A
Cheapest Retailer
-
£146 GBP
A
Retailer 2
-
£164 GBP
View
Final sale: no returns
A
Retailer 3
-
£170 GBP
View
Retailer 4
-
£182 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
£182 GBP
View
A
Retailer 6
-
£231 GBP
View
A
Retailer 7
-
£303 GBP
View
B+
Retailer 8
-
£317 GBP
View
A
Retailer 9
-
£327 GBP
View
B+
Retailer 10
-
£341 GBP
View
B+
Retailer 11
-
£472 GBP
View
B+
Retailer 12
-
£538 GBP
View
B
Retailer 13
-
£583 GBP
View
B
Retailer 14
-
£590 GBP
View
B
Retailer 15
-
£747 GBP
View
Most Expensive
B
MOH London
LG825665219 · Nov 5
£846 GBP
View
15 more retailers have this diamond
Prices start from £146 GBPSave up to £700 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 Radiant
£146 GBP