R1

opal, yellow and white
gold

R2

a. amonite

b. amonite

R3

a. amethyst

b. tourmaline

c. aquamarine

d. tanzanite

e. 03ct diamond

R4

a. aquamarine

b. tanzanite

c. blue zircon

R5

a. tanzanite, blue
zircon

b. spessertite,
rhodalite, amethyst

c. tourmaline,
tanzanite, diamond

d. citrine, tanzanite,
diamond

R6

a. tourmaline

b. tourmaline, tanzanite,
diamond

c. opal, tanzanite

d. peridot, tanzanite

R7

a. tourmaline, garnet

b. tourmaline sapphire

c. peridot, tanzanite

R8

diamond

R9

a. diamond

b. diamond

c. diamond

R10

a. diamond band

b. diamond solitaire