In looking at mountings, I see that some stones (usually side stones or shank stones) are described as "Full Cut".
Is that the same as Round Brilliant?
I know the "Rose Cut" is a round with a lot less facets than a round brilliant, and I don't think "Full Cut" is the same as those.
The rose cut is actually a different animal altogether....
When you hear 'full cut' it means a round brilliant with the full 57 or 58 facets. This is opposed to a single cut, which is a round brilliant with only 17 or 18 facets. Single cuts used to be popular as melee (rhymes with jelly) before really small full cut rounds were widely available. You will also sometimes see single cut melee in less expensive pieces.
A rose cut is a very, very old cut. They're totally flat on the bottom; the top is domed with triangular facets . . . sort of a facted cabachon, if you will. Rose cuts were popular in the 17th and 18th centuries, before more modern cuts were developed.