Sprout

Cre8r

Cur8r

EasL

Spl@

Showcase

If you're going with the gemstone theme maybe Agate?

"Monet" one of the greatest artists of the past whose name resembles money, since on the client there will be zaps

Or very simply ART

Easel

I tend to like real words…

Of all those that have come to mind so far, that don’t appear to already be a brand, and may still have affordable domain options…

aurora

pigment

But will keep thinking…