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

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.

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

From Sonoranite to Padparadscha Sapphires, these unique stones are adding fresh inspiration for collectors & designers

This exquisite 18-carat emerald-cut diamond is a symbol of the couple’s enduring romance and Beyoncé's timeless style.

Kate Middleton’s engagement ring, featuring a stunning 12-carat Ceylon sapphire, a royal heirloom steeped in history.

Learn how to spot high-quality rubies, sapphires, and diamonds by understanding key factors such as colour, clarity, cut, and carat.

Discover the timeless beauty and symbolism of September's birthstone, the sapphire.

Gemstones are timeless treasures. To ensure they remain in pristine condition for years to come, proper care is essential.

In this article, we explore the key factors that influence the value of gemstones, such as rarity, demand, and quality

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