The necklace is made of solid silver (not plated, filled or layered). Each panel is marked 900. The chain and clasp are .925 sterling silver.  The necklace measures 19" end to end. The center panel drop including the coin is 3-1/4". The gems are mother of pearl (with etching) and genuine blue lapis nuggets flush set. I believe the coins are Turkish, and are solid 900 silver. Necklace weight 100 grams. It is pre-owned and is in good condition.