This is a very showy pendant with its alternating blocks of sterling and onyx. It has a large and impressive bale which adds to the look of the piece. The sterling in the chain is cut so that it seems to have a darker side and this is perfect for this black and silver beauty. The pendant is 2 1/8" top to bottom including the bale and 1 5/8" across. The chain is 24" long and has a secure clasp. Pendant is marked 925 Mexico and chain is 925 Italy. The weight is about 38 grams. This is a fabulous look and one which will go with many different outfits. It is in excellent condition and will give you many years of wearing pleasure.