This pre-48 marked plata Mexico is 16.5 adjustable if desired is absolutely breathtaking! The drop measures 1.75in.long and 1.5in.wide. No cracks or chips to the stones and no dents or damage making this one fabulous treasure. The other 6 amethyst links measure each 1.5in. by 1in. This is a rare design and wow, LOOK AT THAT NECKLACE!