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Radiant|Lab Grown|IGI

6.23ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG851650149

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

Certificate IGI LG851650149

Diamond specifications and retailer prices

From £1,052 GBP
$1,412 USD
As of November 1, 2026
Save £2,300 GBP (69%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £3,352 GBP at With Clarity · As of November 2, 2026
View at With Clarity

About this 6.23ct lab-grown radiant diamond

This 6.23ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG851650149 or 851650149. Listed at 3 retailers as of November 1, 2026, with prices from £1,052 to £3,352, a £2,300 spread on the same certified stone. With Clarity lists it at £3,352. 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

6.23
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851650149
Dimensions13.25 × 9.14 × 6.14 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.25 mm9.14 mm6.23 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851650149
Side View
Table 64.0%Crown 41.6°Girdle: Slightly ThickPavilion 35.8°Culet: NoneDepth 67.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £1,052 GBP|Low: £1,052 GBP|High: £3,352 GBP|Avg: £2,444 GBP
Retailer 1
Retailer 2
With Clarity
October 31, 2026
Retailer 1£1,052 GBP
Retailer 2£3,070 GBP
With Clarity£3,352 GBP

3 data points across 3 retailers

3 retailers£1,052 GBP to £3,352 GBP

A
Cheapest Retailer
-
£1,052 GBP
$1,412 USD
B
Retailer 2
-
£3,070 GBP
$4,120 USD
View
Most Expensive
B
With Clarity
851650149 · Nov 2
£3,352 GBP
$4,498 USD
View
2 more retailers have this diamond
Prices start from £1,052 GBPSave up to £2,300 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
6.23ct Radiant
£1,052 GBP