Traveling Silk Road into the Himalayas to search for rare beryl; the team races to India to bid for a Kashmir sapphire.

The crew travels under the mountains of Brazil for a 10-carat emerald; a gemologist makes a mistake.

The crew faces the dangers of the Tanzanian bush country in the quest for a Maasai gemstone.

Don overbids on a Zultanite stone; the crew is stranded while working on a side trip to Transylvania.

Don and the Gem Guys trek the foothills of Turkey after getting duped on a Blue Turk deal.