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Radiant|Lab Grown|IGI

0.51ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG813608954

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

Certificate IGI LG813608954

Diamond specifications and retailer prices

From £104 GBP
As of November 4, 2026
Save £612 GBP (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £716 GBP at Michael Trio · As of November 5, 2026
View at Michael Trio

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813608954 or 813608954. Listed at 18 retailers as of November 4, 2026, with prices from £104 to £716, a £612 spread on the same certified stone. Michael Trio lists it at £716. 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

0.51
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813608954
Dimensions5.81 × 4.11 × 2.53 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.81 mm4.11 mm0.51 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813608954
Side View
Table 67.0%Crown 41.1°Girdle: MediumPavilion 33.5°Culet: NoneDepth 61.6%

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: Nov 4
Current: £716 GBP|Low: £104 GBP|High: £724 GBP|Avg: £301 GBP|-1.0%
Michael Trio
Retailer 2
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November 5, 2026
Retailer 3£104 GBP
Retailer 2£116 GBP
Retailer 16£120 GBP
Retailer 11£129 GBP
Retailer 10£131 GBP
Retailer 5£175 GBP
Retailer 12£218 GBP
Retailer 9£235 GBP
Retailer 18£247 GBP
Retailer 8£292 GBP
Retailer 7£319 GBP
Retailer 4£329 GBP
Retailer 6£352 GBP
Retailer 13£406 GBP
Retailer 14£414 GBP
Retailer 15£437 GBP
Retailer 17£603 GBP
Michael Trio£716 GBP

23 data points across 18 retailers

18 retailers£104 GBP to £716 GBP

A
Cheapest Retailer
-
£104 GBP
A
Retailer 2
-
£116 GBP
View
Final sale: no returns
A
Retailer 3
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£120 GBP
View
A
Retailer 4
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£129 GBP
View
Retailer 5
-
£131 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£175 GBP
View
A
Retailer 7
-
£218 GBP
View
B+
Retailer 8
-
£235 GBP
View
B+
Retailer 9
-
£247 GBP
View
Retailer 10
-
£292 GBP
View
Price last confirmed 9 days ago
B+
Retailer 11
-
£319 GBP
View
B+
Retailer 12
-
£329 GBP
View
B+
Retailer 13
-
£352 GBP
View
B+
Retailer 14
-
£406 GBP
View
B+
Retailer 15
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£414 GBP
View
B
Retailer 16
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£437 GBP
View
B
Retailer 17
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£603 GBP
View
Most Expensive
B
Michael Trio
1303313964 · Nov 5
£716 GBP
SGD 1,303 SGD
View
17 more retailers have this diamond
Prices start from £104 GBPSave up to £612 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
0.51ct Radiant
£104 GBP