Platinum chain stamped PT 850 with authentic natural Diamond Alhambra Quatrefoil Clover pendant purchased as Estate Jewelry Packed and ready to ship Posh Authenticates platinum & diamond authenticity Platinum Genuine Earth Mined Natural Diamonds Quatrefoil 4 leaf clover Design made famous by Van Cleef & Arpels, Cartier, and Tiffany I do not have Diamond weight, I have owned this for a long time and moved several times, so can’t find purchase paperwork platinum is hypoallergenic, and distinguished from all other precious metals and holds more value than gold 1990’s Diamond Clover Alhambra Alahambra Snowflake PT950 PT 950 Chain PT 950 pendant