Hi, stone is done at your kitchen appointment.
The standard range of stone is included, the next range up is deluxe, then supernatural, then supernatural ultra. The cost to upgrade to these depends on the size of your benchtops.
If you look at this stone brochure, it has all the colour options listed with S, D, SN or SNU underneath. http://www.caesarstone.com.au/Portals/0 ... 16_Web.pdf
To give you an idea, it was $1200 more to upgrade my kitchen benchtops to deluxe, at a rough guess around $200 per sqm.
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