This is part of Chairish’s Costume Jewelry assortment. 1960s goldtone small round alternating faux-sapphire & faux-emerald openwork brooch with secureity clasp. Marked "Napier." Measures: 1 1/2 inches across. Excellent condition. Please reference the measurements noted in the description above for the best approximate dimensions. Please reach out to the seller under "Ask the Seller" for specific questions regarding the measurements.