Left to right:

E109: 18K 8mm trillion drop earrings with andesine and .06 ct TW diamonds

E97: 18K 11mm trillion drop earrings with peridot and .12 ct TW diamonds

E98: 14K 6mm trillion drop earrings with iolite  

From top to bottom:

R277 in 18K yellow gold with 4mm pink sapphire. Shank width 0.2"

R277 in 18K yellow gold with marquis iolite. Shank width 0.2"

R277 in 18K yellow gold with 4mm yellow sapphire. Shank width 0.2"

R278 in 18K yellow gold with 8mm garnet. Shank width 0.3"