Ombre Birthstone Necklace

Heavy nickel-free 14k gold plate over recycled metal
Gold-filled chain
B: Aquamarine/blue topaz/turquoise/blue tourmaline/sapphire
O: Diamond/pearl/quartz/opal/white topaz
Pk: Garnet/ruby/tourmaline/spinel/morganite
Pp: Amethyst/spinel/pink sapphire