Carved Pink Sapphire, Black Opal, Green Tourmaline, Gray Keshi Baroque Pearl, Carre Diamonds, set in 18k Yellow and White Gold. 

Carre Diamonds (.75 carats, GH VS) 
Pink Sapphire shield shaped (23 carats, 19.75 x 20.40 mm)
Opal (29.62 carats, 28 x 21 mm)
Tourmaline (58.92 carats, 28.06 x 21.96)
Tahitian Keshi Baroque Pearl (3.2 grams, 17 x 16 mm)