From ZnetShows:
Necklace (left):
PMX7-B02 - cultured sea glass rings in jet black
RS275-02AB – 2x2.5mm Chinese crystal rondelles in jet black
Pendant (right):
PMX7-B31 - cultured sea glass fancy rings in light sapphire
RS274-31AB – 3x3.5mm Chinese crystal rondelles in light sapphire