About the colors
I print various "Mother of Pearl" or Shell types(Abalone) of designs: Yellows, Reds and Greens. On a base of White Silver, I'm making use of a natural shine, which allows it to simulate and imitate actual inlay.
We don't use a material sheet as your expectation.
Our factory makes these things in a very specific way.
To put it shortly, we are doing two things(printing&cutting) at the same time.
We adjust the color to each design of products.
We use the notation of colors to just categorize our products.
So Please look at pictures and consider those pictures description of each item.