Precious Gemstones

In his many decades of trading gemstones, Mr. Pornchai has collected and built an enviable inventory on the corundum family gems, namely orange sapphires, yellow sapphires, rubies, blue sapphires, and black star sapphires. Our vast inventory is worth a look if you are looking for precious gemstones to work with, or simply to collect for family heirloom.

Orange Sapphire

Truly a testament to Thai innovation. Thanks to the Beryllium Heat Treatment process invented by a group of Thai gemstone traders, Corundum now welcomes a shade of sunset to its spectrum. You will find a variety of shades, shapes, and sizes of Orange Sapphires at Pornchai International as Mr. Pornchai himself is one of the early advocates and supporters of Orange Sapphires back when the invention was new and unfamiliar to many. We would go as far as to say the orange sapphire collections is nothing short of his pride and joy.

For more information about Orange Sapphire and Beryllium Heat Treatment, visit our FAQs page.

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Yellow Sapphire

Cut by expert Thai gemstone cutter to bring out the golden shine and heat treated to perfection, our yellow sapphire collection oozes superior quality and brilliance. With colour ranges from whiskey yellow to golden and lime yellow, jewellers and designers can rest assure our gemstones can make your end results stay true to your impeccable designs.

To find more information about heat treatment on yellow sapphire, visit our FAQs page.

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Fancy Sapphire

Explosion of colours. Discover the many colour of corundum, from pink to purple, green to golden.

Gemstones may be heat treated. To find out more about heat treatment, please visit our FAQs.

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Black Star Sapphire

A very special wonder of nature. A completely natural gemstone with phenomenon. Shines a light on it and see the star sparkles. As it is of corundum family, the durability and hardness is exceptional, like those of rubies and sapphires. Our gemstones only have shellac on their bases to improve toughness but otherwise they are completely untreated and unheated, the way nature created them.

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Cabochon Blue Sapphire

The classic color jeweller’s dreams are made of. We have countless shades of rich blue and several levels of gemstone transparency for your selection. Our blue sapphires are primarily from Sri Lanka and Kanchanaburi, Thailand.

Gemstones may be heat treated. To find out more about heat treatment, please visit our FAQs.

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Mozambique Ruby

Rubies are no longer exclusive to the rajas and the royals. We offer scarlet beauties in both cabochon and faceted cuts at a fraction of a cost of  similar quality untreated rubies. Our rubies come straight from Mozambia, Africa strictly for your consideration.

Gemstones may be heat treated with Beryllium and lead glass addition. To find out more about the treatment, check our FAQs.

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Semi-Precious Gemstone

Apart from the Corundum family gemstones, we have a wide selection of semi-precious gems such as blue zircon, tourmalines, amethyst, lime quartz, chrysophase and topaz to name a few. And if these still cannot fullfill your requirement, we can also offer you gemstone sourcing/brokerage service.

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