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.

Ruby and Sapphire gemstones sourced by SICO International, London At SICO International, we pride ourselves on offering an exquisite...

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

Top 5 Rare and Unique Gemstones in the World: A Journey Into Earth’s Hidden Treasures

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