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Ron LeBlanc and his team travel to Vietnam to score some high-rolling rubies. Operating under the government’s radar, the team is tailed by an agent intent on making sure they leave empty handed. But, Ron has a few tricks.

The new blue gemstone tanzanite is only found in one small part of Tanzania, and it is famous as one of the bluest of all blue stones. But the supply of tanzanite is already running out, so Ron Le Blanc, Diane Robinson and Bernie Gaboury have traveled to Tanzania's Mount Kilimanjaro to get in on the action.

Ron LeBlanc and his team of gem hunters travel to Brazil, home to more gemstones than just about anywhere on the planet. Ron's mission is to find imperial topaz - a stone so rare it is only produced by a single mine in Ouro Preto, Brazil. He's looking for a monster stone: a rock that will cut a 20-carat gem … and he's willing to spend big money to get it.

Ethiopia is home to the strictest gem buying rules and regulations Ron has ever experienced, so he'll have to navigate government minders and bureaucracy first if he's going to get his Welo opals. After vehicle breakdowns, police brutality and death-defying cliff descents, Ron has the chance to try to secure a huge package of rough Welo opal and a potential six-figure pay day.

Ron Leblanc and his team of gem hunters travel to Colombia in search of Muzo emeralds, the world's most valued gemstone. But before they can get their hands on these prized stones, they have to negotiate their way through Colombia, dealing with the infamous cartels which control the emerald trade.

Ron LeBlanc and his team of gem hunters travel to Sri Lanka, home to some of the oldest gem markets on the planet. But buyer beware: the markets are crawling with synthetics, fakes and imported stones. Ron is hunting the fabled padparadscha -- a truly unique pinky-orange sapphire.

For centuries, Cambodia's Pailin region has been producing some of the best sapphires on the planet, and Ron's mission is to track down 2 of the best blue sapphires Pailin has to offer. He's got $30,000 and just 1 week to find a flawlessly matched set of mega-carat sapphires.

Ron LeBlanc and his team of Gem Hunters head to Nepal in search of rare tourmaline and aquamarine stones that are known to be hidden in the Himalayan Mountains.

Ron, Bernie and Diane return to their old hunting ground, sapphire rich Madagascar, in search of stunning gemstones reputed to be coming out of a hot new mine in the country's northern region.

Ron LeBlanc and his team of Gem Hunters travel to Thailand in search of a perfect pair of blood-red rubies. They start their hunt in the Western border town of Mae Sot, where Myanmar’s best rubies first hit the international gem scene.

For decades foreign gem dealers have been forbidden from dealing in Myanmar, and Burmese stones have been made toxic by U.N. sanctions. As a first step on the way to recovery, the President of Myanmar invites the gem hunters to be the first to visit the Mogok Valley – the single most gem-rich real estate on Earth.

Ron LeBlanc and his team of Gem Hunters take on gem-rich, yet notorious Mozambique in search of the world's best aquamarine. The hunt will be dangerous, but the rewards will be beyond compare.

Ron LeBlanc and his team of Gem Hunters explore Zambia in search of the country's high quality emeralds and amethyst. Zambia is famous for its emeralds, and their color and clarity are perfect for the North American market.