Vintage Mexican 950 stone pendant & choker necklace

This is a beautifully handcrafted 950 silver Malachite & Lapis pendant. The pendant is approximately 1&6/8” long by 1&3/8”wide, and stamped 950. The choker necklace is approximately 15” all the way around including the gap, and stamped 925, and Mexico. The necklace & pendant is approximately 28.3 grams. My father purchased this necklace in Mexico approximately 50 years ago.