Volcanic Quartz Bali style sterling silver teardrop earrings

These earrings are from an estate purchase jn excellent pre owned condition not really showing many signs of use , almost like new.  “Volcanic Quartz”, is a quartz that’s undergone a color enhancement treatment bonding to the quartz. Volcanic quartz is not a naturally occurring quartz, but intensively beautiful and fun with iridescent color changes from reds, oranges, magenta, purples, blues, and more in a mostly red base. Teardrop cut gemstones set in authentic 925 Bali style sterling silver on 925 ear wires. No hallmarks found , only purity stamps. Total weight is 7.63 grams. Reasonable offers considered