I don't recall seeing it but there are hundreds on Temple and Webster.

We stock them in Gold in two sizes 56 cm diametre Gold top $ 485.00 30cm diametre Gold top $215.00

Kmart has a cheap one - search expandable rack. Not as nice as the one in your pick. You may also find one at an op shop or garage sale.

This isn't a personal recommendation as I have not yet purchased anything from this company, but I've been admiring the timber floating shelves on their website. https://shelvingshop.com.au/product-category/floating-shelves/wood-effect-finish/ Or you can buy the brackets and have the shelf custom made in whatever material and size you want. https://shelvingshop.com.au/product-category/brackets-2/floating-shelving-brackets/  I think hardware stores also sell brackets by themselves. I was thinking of going the custom route because that means I can ensure the brackets will be attached to the studs. I believe you can paint melamine after proper preparation of the surface, but I doubt if you can stain it.