The necklace is about 16 inches long, and it could be worn up to about 15 1/2" without an extender.
It has a J-hook clasp.
The Aurora Borealis crystals (AB) are in several different shapes and sizes from about 3/16" to 3/8" across.
I see no maker's marks or names.
Very pretty necklace.
It has a few wear spots and could use a gentle cleaning.
*Please check to make sure the beads and the clasp... are very secure and then have the pieces of vintage jewelry gently cleaned by a jeweler or collector who understands vintage AB jewelry.
*All items are "as is" and there are no returns so please read the descriptions and see the photos before you buy.