Precious gemstones

The KGK Group’s enduring legacy of trust was first built on precious coloured gemstones over a hundred years ago. Our exceptional range includes stones of every imaginable colour, shape and size:

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Emeralds
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Rubies
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Sapphires

Semi-precious gemstones

KGK Group offers large volumes of semi-precious gemstones at competitive prices. You will appreciate the high quality of KGK stones, our excellent customer service and outstanding overall value. Our huge selection includes:

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Bi-color Tourmalines
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Aquamarines
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Pink Tourmalines
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Tsavorites
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Rubellites
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Green Tourmalines
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Tanzanites
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Paraibas

Sourcing around the world

  • Brazil
  • Colombia
  • Madagascar
  • Myanmar
  • Tanzania
  • Sri Lanka
  • Zambia

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Manufacturing innovation

We process, cut and polish our own gemstones to ensure maximum quality and value. For speed and efficiency, our digitally controlled production lines are equipped with automated gemstone production technology. To provide optimum access to global markets, KGK gemstone manufacturing units are located in:

  • India
  • Thailand
  • China

KGK is unique in the gems and jewellery sector for being amongst the industry’s only few that also mines and produces coloured gemstones.

Efficient distribution network

The KGK Group’s valuable logistics distribution infrastructure extends around the world. The main markets for our coloured gemstones are:

  • China*
  • Hong Kong SAR
  • India*
  • Japan
  • Middle East
  • South East Asia
  • Russia
  • Taiwan SAR
  • Thailand
  • USA

* Domestic manufacturing for tariff-free local distribution


The KGK Group regularly exhibits at many of the world’s leading gemstone and jewellery trade events.

Contact KGK about gemstones