Another issue with a misleading advert?

[MsPlod 11]

Tanzanites - LARGE VS1 .50CTS TANZANITE!! R5,700.00 VALUE APPRAISAL SUPPLIED for sale in White River

 

Tanzanites - .65CTS TANZANITE!! R6,600.00 VALUE APPRAISAL SUPPLIED for sale in White River

 

Aren't these the same pictures??

 

How can the same gem be both sizes and both values - also both colours? Never seen a small tanzanite quite so dark blue? Most puzzling... Look forward to some explanation. I am sure there will be one...

[MsPlod 11]

It has now been removed

 

Thanks!!