Caviar and Rubies

Two great bags spotted through a window in Paris.

For hours I kept thinking "caviar and rubies."
Now I know these are both expensive items to both wear and eat. But what made this designer choose these two words for the bags? I love the letters sewn individually in place. I want to make a bag with a word on it...but can't possibly select one great word. I think I would want "Paris" but that would be so unoriginal. I think the point of these bags is to pick a word you would not ordinarily see as the focal point on a purse. So I am thinking about things I love that are pricey that might be cool on a bag. Words in the running:
Peridot
Antique
Leather
Inkjet
I'll happily take suggestions!