Radiant|Lab Grown|IGI

5.18ct F VS2 Radiant Lab Grown Diamond

ID • F/VS2 • IGI LG604318045

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

Certificate IGI LG604318045

Diamond specifications and retailer prices

From $1,726 USD
As of October 28, 2026
Save $707 USD (29%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $8,630 USD at Brilliant Earth · As of October 1, 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 LG604318045 or 604318045. Listed at 3 retailers as of October 28, 2026, with a 41% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG604318045
Dimensions12.28 × 8.41 × 5.74 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.28 mm8.41 mm5.18 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG604318045
Side View
Table 65.0%Crown 43.7°Girdle: MediumPavilion 35.1°Culet: NoneDepth 68.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $8,630 USD|Low: $1,726 USD|High: $8,630 USD|Avg: $4,345 USD
Brilliant Earth
Retailer 2
Retailer 3
September 29, 2026
Retailer 3$1,726 USD
Retailer 2$2,433 USD
Brilliant Earth$8,630 USD

2 data points across 3 retailers

3 retailers$1,726 USD to $2,433 USD

A
Cheapest Retailer
-
$1,726 USD
B+
Retailer 2
-
$2,433 USD
View
Most Expensive
Brilliant Earth
14233207Y · Oct 1
$8,630 USD
View
Price last confirmed 31 days ago
2 more retailers have this diamond
Prices start from $1,726 USDSave up to $707 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
$1,726 USD