Offered for sale: 27 inch graduated clear crystal necklace. The crystals go from 6mm by 10mm to 16mm by 23mm. There are 49 clear man made crystals which are facetted on all sides. The crystals are strung on white cord and knotted. The clasp appears to be brass which at one time had a sliver wash on it. To me this necklace says '1020s-1930s'. t is in excellent vintage condition. It has been in with my other jewelry for the last 10 years.