From ancient kings to modern collectors, sapphire has long captured imaginations. As the birthstone of September, it brings both brilliance and symbolism.

Gemfields has introduced Imboo, a colossal 11,685-carat emerald discovered at the Kagem Mine in Zambia—now one of the largest rough emeralds ever revealed.

At Wimbledon, the Princess of Wales debuted a stunning stacked ring look, pairing her iconic sapphire engagement ring with two elegant eternity bands. The style reflects a growing jewellery trend—ring stacking with personal meaning.

When it comes to rare and precious gemstones, sapphires have long captivated royalty, collectors, and connoisseurs alike. At Sico International, based in London’s prestigious Hatton Garden, sapphires are not just a speciality — they’re a passion. With over 26 years of global experience, and sourcing offices in Colombo, Sri Lanka, and Chantaburi, Thailand, we offer clients access to some of the rarest and most valuable natural sapphires in the world.

SICO International, nestled in the heart of London's renowned Hatton Garden, stands as a beacon for connoisseurs and collectors seeking the world's most exquisite gemstones. With over 26 years of experience, this family-run enterprise has cultivated a reputation for sourcing and supplying rare, certified gemstones that epitomise luxury and authenticity.

The demand for rare colored gemstones – especially rubies and sapphires – is surging in 2025. Global market research predicts the colored gemstone sector will more than double by 2035, growing from about $1.9 billion today to $5.7 billion.

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.

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