Radiant|Lab Grown|IGI

0.50ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG812644803

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

Certificate IGI LG812644803

Diamond specifications and retailer prices

From £109 GBP
$146 USD
As of October 30, 2026
Save £625 GBP (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £734 GBP at Michael Trio · As of October 30, 2026
View at Michael Trio

About this 0.5ct lab-grown radiant diamond

This 0.5ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812644803 or 812644803. Listed at 18 retailers as of October 30, 2026, with prices from £109 to £734, a £625 spread on the same certified stone. Michael Trio lists it at £734. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.50
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle52.5°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812644803
Dimensions6.13 × 3.82 × 2.51 mm
L/W Ratio1.60
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.13 mm3.82 mm0.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812644803
Side View
Table 70.0%Crown 52.5°Girdle: MediumPavilion 38.3°Culet: NoneDepth 65.7%

Caratlytics Score

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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: Oct 30
Current: £734 GBP|Low: £109 GBP|High: £745 GBP|Avg: £306 GBP|-1.5%
Michael Trio
Retailer 2
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 31, 2026
Retailer 13£109 GBP
Retailer 16£121 GBP
Retailer 4£127 GBP
Retailer 15£135 GBP
Retailer 9£137 GBP
Retailer 3£183 GBP
Retailer 2£230 GBP
Retailer 10£232 GBP
Retailer 6£245 GBP
Retailer 5£250 GBP
Retailer 8£347 GBP
Retailer 12£358 GBP
Retailer 7£363 GBP
Retailer 18£434 GBP
Retailer 11£458 GBP
Retailer 14£475 GBP
Retailer 17£634 GBP
Michael Trio£734 GBP

20 data points across 18 retailers

18 retailers£109 GBP to £734 GBP

A
Cheapest Retailer
-
£109 GBP
$146 USD
A
Retailer 2
-
£121 GBP
$162 USD
View
Final sale: no returns
A
Retailer 3
-
£127 GBP
$170 USD
View
A
Retailer 4
-
£135 GBP
$181 USD
View
A
Retailer 5
-
£137 GBP
$183 USD
View
A
Retailer 6
-
£183 GBP
$245 USD
View
A
Retailer 7
-
£230 GBP
View
Retailer 8
-
£232 GBP
€296 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
£245 GBP
ZAR 5,306 ZAR
View
A
Retailer 10
-
£250 GBP
$335 USD
View
B+
Retailer 11
-
£347 GBP
A$715 AUD
View
B+
Retailer 12
-
£358 GBP
$480 USD
View
B+
Retailer 13
-
£363 GBP
A$748 AUD
View
B+
Retailer 14
-
£434 GBP
$581 USD
View
B
Retailer 15
-
£458 GBP
$614 USD
View
B+
Retailer 16
-
£475 GBP
$637 USD
View
B
Retailer 17
-
£634 GBP
View
Most Expensive
B
Michael Trio
1235294415 · Oct 30
£734 GBP
SGD 1,329 SGD
View
17 more retailers have this diamond
Prices start from £109 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
0.50ct Radiant
£109 GBP