Measuring 7/8" square, make that vintage 1980s couture statement.
Colors don't always accurately represent themselves across devices.  The color is an aqua green.
Enamel is very good.  Some mild wear on the goldtone bases.  Appropriate with age and use. 
Including two extra earring backs, as those that came with the earrings have aged to different colors.

Additional information is in the item specifics section.
I provide multiple photos for your close inspection.

I strive to describe my items accurately, so you’ll be happy with your purchase.
If you have questions, or concerns, please contact me.  I’m happy to answer all questions!
Mine is a smoke-free and pet-free home.

Thanks for looking!