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Radiant|Lab Grown|IGI

6.37ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG844677199

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

Certificate IGI LG844677199

Diamond specifications and retailer prices

From £549 GBP
$736 USD
As of November 1, 2026
Save £3,563 GBP (87%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £4,112 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.37ct lab-grown radiant diamond

This 6.37ct 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 LG844677199 or 844677199. Listed at 3 retailers as of October 31, 2026, with prices from £549 to £4,112, a £3,563 spread on the same certified stone. Brilliant Earth lists it at £4,112. 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

6.37
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844677199
Dimensions13.08 × 8.98 × 6.13 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.08 mm8.98 mm6.37 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844677199
Side View
Table 62.0%Crown 47°Girdle: MED-STKPavilion 35°Culet: NoneDepth 68.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £952 GBP|Low: £549 GBP|High: £1,018 GBP|Avg: £806 GBP|-6.5%
Retailer 1
Retailer 2
November 2, 2026
Retailer 2£549 GBP
Retailer 1£952 GBP

19 data points across 2 retailers

3 retailers£549 GBP to £4,112 GBP

A
Cheapest Retailer
-
£549 GBP
$736 USD
Final sale: no returns
A
Retailer 2
-
£952 GBP
View
Most Expensive
B
Brilliant Earth
22002826A · Oct 31
£4,112 GBP
$5,510 USD
View
2 more retailers have this diamond
Prices start from £549 GBPSave up to £3,563 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
6.37ct Radiant
£549 GBP