A mixed group of loose stones

A mixed group of loose stones, including a pair of circular-cut fire opals, 0.90cts total, an emerald-cut emerald, 2.16cts, a solid black opal, 3.64cts, a fire opal cabochon, 2.53cts, an emerald-cut citrine, 24cts, an oval-shaped citrine 16.88cts, a pair of pink tourmalines and a collection of aquamarines, green tourmalines and an iolite