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 Hatton Garden, SICO International stands as a beacon for connoisseurs of rare and exquisite gemstones. With over 26 years of unparalleled expertise, we specialise in sourcing and supplying the finest Rubies, Sapphires, Diamonds and other precious gems to a discerning global clientele.

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.

At SICO International, we pride ourselves on offering an exquisite selection of precious gemstones, with a particular emphasis on rubies and sapphires. Our commitment to quality and authenticity ensures that each gemstone we provide meets the highest standards, making them perfect for both collectors and those seeking timeless elegance.​

SICO International has been at the forefront of the global gemstone industry, specialising in sourcing the finest and rarest gemstones.

Discover the World's Finest Gemstones with Sico International: Excellence, Expertise, and Authenticity

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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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Rubies are symbols of passion, protection, and prosperity. The ruby gemstones have been revered since ancient times. Rubies have been...

Sico International has been based in the heart of London’s jewellery district, Hatton Garden since 1996. During those 26 years, we’ve...

Sico International is a leading, gemstone trader located in London. As with many of the jewellers here in thriving Hatton Garden, we...

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