In the heart of London, SICO International stands as a beacon for connoisseurs and collectors seeking the world's most exquisite rare gemstones. Specialising in precious colored stones—predominantly rubies and sapphires—SICO International has built a reputation for sourcing and supplying gems of unparalleled quality and authenticity. 

Nestled in the heart of London's historic Hatton Garden, SICO International stands as a beacon for connoisseurs and collectors seeking the world's most exquisite rare coloured gemstones. With a legacy spanning nearly three decades, our boutique firm has earned a reputation for sourcing and curating exceptional rubies and sapphires that captivate the senses and tell stories of timeless elegance.

When it comes to high-quality gemstones, SICO International stands as one of the most reputable suppliers in the heart of London.

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Sico International was founded by professional gemstone expert, Anthony Aziz in 1996. Anthony first started working in the industry with...