Mod Podge Plaid Mod Podge 8oz Extreme Glitter

Has anyone used this on diamond paintings? Does it make the sparkle of the diamonds go away and make them look dull?

is the glitter fine like a .004 or larger?

Would this work on a glass candle holder?

Is the extreme glitter washable once it’s cured if used in wine glasses? And how long does it take to cure?