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 $139 USD
As of November 6, 2026
Save $825 USD (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $964 USD at Michael Trio · As of November 6, 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 6, 2026, with prices from $139 to $964, a $825 spread on the same certified stone. Michael Trio lists it at $964. 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
Color
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 6
Current: $964 USD|Low: $139 USD|High: $974 USD|Avg: $411 USD|-1.0%
Michael Trio
Retailer 2
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Retailer 18
November 7, 2026
Retailer 14$139 USD
Retailer 16$156 USD
Retailer 3$162 USD
Retailer 17$173 USD
Retailer 10$176 USD
Retailer 6$235 USD
Retailer 2$292 USD
Retailer 15$308 USD
Retailer 12$330 USD
Retailer 9$393 USD
Retailer 8$430 USD
Retailer 5$443 USD
Retailer 7$474 USD
Retailer 11$544 USD
Retailer 13$555 USD
Retailer 18$588 USD
Retailer 4$811 USD
Michael Trio$964 USD

23 data points across 18 retailers

18 retailers$139 USD to $964 USD

A
Cheapest Retailer
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$139 USD
A
Retailer 2
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$156 USD
View
Final sale: no returns
A
Retailer 3
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$162 USD
View
A
Retailer 4
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$173 USD
View
Retailer 5
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$176 USD
View
Price last confirmed 13 days ago
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Retailer 6
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$235 USD
View
A
Retailer 7
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$292 USD
View
B+
Retailer 8
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$308 USD
View
B+
Retailer 9
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$330 USD
View
Retailer 10
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$393 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
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$430 USD
View
B+
Retailer 12
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$443 USD
View
B+
Retailer 13
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$474 USD
View
B+
Retailer 14
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$544 USD
View
B+
Retailer 15
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$555 USD
View
B
Retailer 16
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$588 USD
View
B
Retailer 17
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$811 USD
View
Most Expensive
B
Michael Trio
1303313964 · Nov 6
$964 USD
SGD 1,303 SGD
View
17 more retailers have this diamond
Prices start from $139 USDSave up to $825 USD

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
$139 USD