This is a large Taxco Mexican sterling silver cross pendant with gemstones. The inside of the bail is marked MEXICO, 925 and TM-111. I believe the gemstones are carnelian, black onyx, chrysoprase and pink kunzite. I do not know what the blue stone is. The pendant measures 3-1/4 inches by 2-1/4 inches. It weighs 20.8 grams. The pendant is in very good condition but does have an age patina and may need cleaning or polishing. Please let me know if you have any questions. Thanks for stopping by.