If you have ths same dilema I do, with both your mother and mother-in-laws birthdays in May along with Mother's Day, sometimes it is hard to know what to get them. This green quartz sterling silver kaleidoscope necklace is the answer for me. Although the stone is not a true emerald, the green quartz is quit close.
The kaleidoscope is 1 1/4" long, 3/8" in diameter, and comes on a 24" chain.
Made in the USA by Kevin and Debra Healy.