Avi The Gem Guy

4.03 carat no heat green sapphire

0.29 carat alexandrite - russia

0.32 carat alexandrite - russia

3.61 carat no heat cobalt spinel - gia

2.13 carat pink no heat sapphire - mozambique

1.59 carat no heat green sapphire

2.31 carat bi-color sapphire

2.65 carat no heat purple sapphire - sri lanka

3.01 carat no heat green sapphire - tanzania

1.54 carat blue spinel - gia

2.80 carat blue sapphire

2.27 carat blue sapphire

1.85 carat blue sapphire

4.90 carat no heat sapphire - sri lanka

3.31 carat no heat sapphire - sri lanka

1.50 carat emerald

1.56 carat emerald

1.85 carat emerald

2.82 carat zambian emerald - zambia

0.87 carat ruby