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 $756 USD
As of October 30, 2026
Save $4,034 USD (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,790 USD 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 $756 to $4,790, a $4,034 spread on the same certified stone. Brilliant Earth lists it at $4,790. 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: $4,790 USD|Low: $719 USD|High: $8,440 USD|Avg: $2,278 USD|-43.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 3$756 USD
Retailer 19$822 USD
Retailer 8$877 USD
Retailer 9$877 USD
Retailer 12$965 USD
Retailer 18$1,055 USD
Retailer 2$1,343 USD
Retailer 13$1,397 USD
Retailer 17$1,419 USD
Retailer 16$1,938 USD
Retailer 4$1,943 USD
Retailer 5$2,465 USD
Retailer 6$2,728 USD
Retailer 11$2,850 USD
Retailer 7$3,026 USD
Retailer 10$3,382 USD
Retailer 14$3,462 USD
Retailer 15$3,475 USD
Brilliant Earth$4,790 USD

35 data points across 19 retailers

24 retailers$756 USD to $4,790 USD

A
Cheapest Retailer
-
$756 USD
A
Retailer 2
-
$822 USD
View
A
Retailer 3
-
$838 USD
View
Final sale: no returns
A
Retailer 4
-
$877 USD
View
Retailer 5
-
$877 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$965 USD
£760 GBP
View
A
Retailer 7
-
$1,037 USD
HK$8,100 HKD
View
A
Retailer 8
-
$1,055 USD
View
A
Retailer 9
-
$1,343 USD
£1,058 GBP
View
A
Retailer 10
-
$1,397 USD
€1,330 EUR
View
B+
Retailer 11
-
$1,419 USD
View
B+
Retailer 12
-
$1,938 USD
View
B+
Retailer 13
-
$1,943 USD
View
B+
Retailer 14
-
$2,465 USD
View
B
Retailer 15
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$2,728 USD
£2,148 GBP
View
B
Retailer 16
-
$2,850 USD
View
B
Retailer 17
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$2,936 USD
View
B
Retailer 18
-
$3,007 USD
SGD 4,063 SGD
View
Retailer 19
-
$3,026 USD
View
Price last confirmed 14 days ago
Retailer 20
-
$3,382 USD
A$5,203 AUD
View
Price last confirmed 24 days ago
B
Retailer 21
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$3,462 USD
£2,726 GBP
View
Retailer 22
-
$3,475 USD
View
Price last confirmed 14 days ago
B
Retailer 23
-
$4,264 USD
View
Most Expensive
B
Brilliant Earth
18299932A · Oct 31
$4,790 USD
View
23 more retailers have this diamond
Prices start from $756 USDSave up to $4,034 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
5.18ct Radiant
$756 USD