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Radiant|Lab Grown|IGI

6.59ct F VS2 Radiant Lab Grown Diamond

EX • F/VS2 • IGI LG839618957

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

Certificate IGI LG839618957

Diamond specifications and retailer prices

From £744 GBP
$997 USD
As of November 1, 2026
Save £269 GBP (27%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,013 GBP at Loose Grown Diamond · As of October 28, 2026
View at Loose Grown Diamond

About this 6.59ct lab-grown radiant diamond

This 6.59ct 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 LG839618957 or 839618957. Listed at 2 retailers as of October 28, 2026, with prices from £744 to £1,013, a £269 spread on the same certified stone. Loose Grown Diamond lists it at £1,013. 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

6.59
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839618957
Dimensions13.29 × 9.30 × 6.17 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.29 mm9.30 mm6.59 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839618957
Side View
Table 65.0%Crown 43.9°Girdle: MediumPavilion 37.2°Culet: NoneDepth 66.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £1,013 GBP|Low: £744 GBP|High: £1,238 GBP|Avg: £1,052 GBP|-3.8%
Loose Grown Diamond
Retailer 2
Retailer 3
October 27, 2026
Retailer 2£744 GBP
Loose Grown Diamond£1,013 GBP
Retailer 3£1,238 GBP

5 data points across 3 retailers

2 retailers£744 GBP to £1,013 GBP

A
Cheapest Retailer
-
£744 GBP
$997 USD
Final sale: no returns
Most Expensive
B+
Loose Grown Diamond
839618957 · Oct 28
£1,013 GBP
$1,357 USD
View
1 more retailer has this diamond
Prices start from £744 GBPSave up to £269 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
6.59ct Radiant
£744 GBP