Bespoke Tile & Stone has a product very similar to this, in a Spanish hand-made subway tile. These are available exclusively from Earp Bros in Sydney, Melbourne and Newcastle, and are called 'Devon Sky'. I will attach some images for your reference also. Hope you find what you are looking for if the following material isn't what you are after.
Please contact us if you require more information, we are happy to help.
Hi Lisa, I'm also interested in sourcing Waterworks tiles in Icewater. Have been communicating with a Waterworks directly. Did you find anyone locally selling them? I'm in Sydney.
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Hannah Tatam