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Radiant|Lab Grown|IGI

0.49ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG625474751

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

Certificate IGI LG625474751

Diamond specifications and retailer prices

From £122 GBP
As of October 31, 2026
Save £371 GBP (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £493 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.49ct lab-grown radiant diamond

This 0.49ct lab-grown radiant sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG625474751 or 625474751. Listed at 5 retailers as of October 26, 2026, with prices from £122 to £493, a £371 spread on the same certified stone. MOH London lists it at £493. 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

0.49
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle42.6°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625474751
Dimensions5.15 × 3.88 × 2.84 mm
L/W Ratio1.33
Culet sizeNone
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.15 mm3.88 mm0.49 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG625474751
Side View
Table 74.0%Crown 42.6°Girdle: THK-VTKPavilion 41.9°Culet: NoneDepth 73.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £493 GBP|Low: £91 GBP|High: £499 GBP|Avg: £241 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 2£122 GBP
Retailer 4£152 GBP
Retailer 3£162 GBP
Retailer 5£298 GBP
MOH London£493 GBP

42 data points across 5 retailers

5 retailers£122 GBP to £493 GBP

A
Cheapest Retailer
-
£122 GBP
A
Retailer 2
-
£152 GBP
$204 USD
View
A
Retailer 3
-
£162 GBP
View
B
Retailer 4
-
£298 GBP
$399 USD
View
Most Expensive
B
MOH London
LG625474751 · Oct 26
£493 GBP
View
4 more retailers have this diamond
Prices start from £122 GBPSave up to £371 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
0.49ct Radiant
£122 GBP