Radiant|Lab Grown|IGI

5.18ct F VS2 Radiant Lab Grown Diamond

EX • F/VS2 • IGI LG660420012

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

Certificate IGI LG660420012

Diamond specifications and retailer prices

From €677 EUR
$756 USD
As of October 30, 2026
Save €3,611 EUR (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €4,287 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.18ct lab-grown radiant diamond

This 5.18ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG660420012 or 660420012. Listed at 24 retailers as of October 30, 2026, with prices from €677 to €4,287, a €3,611 spread on the same certified stone. Brilliant Earth lists it at €4,287. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.18
Carat
F
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660420012
Dimensions12.40 × 8.45 × 5.67 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.40 mm8.45 mm5.18 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660420012
Side View
Table 62.0%Crown 41.2°Girdle: Slightly ThickPavilion 33.9°Culet: NoneDepth 67.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €4,287 EUR|Low: €644 EUR|High: €7,555 EUR|Avg: €2,039 EUR|-43.2%
Brilliant Earth
Retailer 2
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Retailer 12
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Retailer 19
November 2, 2026
Retailer 3€677 EUR
Retailer 19€736 EUR
Retailer 8€785 EUR
Retailer 9€785 EUR
Retailer 12€864 EUR
Retailer 18€944 EUR
Retailer 2€1,202 EUR
Retailer 13€1,250 EUR
Retailer 17€1,270 EUR
Retailer 16€1,735 EUR
Retailer 4€1,739 EUR
Retailer 5€2,206 EUR
Retailer 6€2,442 EUR
Retailer 11€2,551 EUR
Retailer 7€2,708 EUR
Retailer 10€3,027 EUR
Retailer 14€3,099 EUR
Retailer 15€3,110 EUR
Brilliant Earth€4,287 EUR

35 data points across 19 retailers

24 retailers€677 EUR to €4,287 EUR

A
Cheapest Retailer
-
€677 EUR
$756 USD
A
Retailer 2
-
€736 EUR
$822 USD
View
A
Retailer 3
-
€750 EUR
$838 USD
View
Final sale: no returns
A
Retailer 4
-
€785 EUR
$877 USD
View
Retailer 5
-
€785 EUR
$877 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
€864 EUR
£760 GBP
View
A
Retailer 7
-
€928 EUR
HK$8,100 HKD
View
A
Retailer 8
-
€944 EUR
$1,055 USD
View
A
Retailer 9
-
€1,202 EUR
£1,058 GBP
View
A
Retailer 10
-
€1,250 EUR
View
B+
Retailer 11
-
€1,270 EUR
$1,419 USD
View
B+
Retailer 12
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€1,735 EUR
$1,938 USD
View
B+
Retailer 13
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€1,739 EUR
$1,943 USD
View
B+
Retailer 14
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€2,206 EUR
$2,465 USD
View
B
Retailer 15
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€2,442 EUR
£2,148 GBP
View
B
Retailer 16
-
€2,551 EUR
$2,850 USD
View
B
Retailer 17
-
€2,628 EUR
$2,936 USD
View
B
Retailer 18
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€2,691 EUR
SGD 4,063 SGD
View
Retailer 19
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€2,708 EUR
$3,026 USD
View
Price last confirmed 14 days ago
Retailer 20
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€3,027 EUR
A$5,203 AUD
View
Price last confirmed 25 days ago
B
Retailer 21
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€3,099 EUR
£2,726 GBP
View
Retailer 22
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€3,110 EUR
$3,475 USD
View
Price last confirmed 14 days ago
B
Retailer 23
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€3,817 EUR
$4,264 USD
View
Most Expensive
B
Brilliant Earth
18299932A · Oct 31
€4,287 EUR
$4,790 USD
View
23 more retailers have this diamond
Prices start from €677 EURSave up to €3,611 EUR

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
5.18ct Radiant
€677 EUR