The Island of Gems
Sri Lanka, historically known as Ratna Dweepa — the "Island of Gems" — has produced some of the world's most extraordinary sapphires for more than two thousand years. The island's gem-bearing gravels, laid down in ancient riverbeds across the Ratnapura and Elahera districts, have yielded sapphires of remarkable clarity, colour saturation, and size that have adorned the crowns, sceptres, and jewellery of royalty across continents.
A History Written in Blue
The earliest recorded references to Ceylon sapphires date back to the 2nd century BCE, when Sri Lankan gems were traded along the Silk Road to Rome, Persia, and China. The Mahavamsa, the great chronicle of Sri Lankan kings, describes gemstones being sent as diplomatic gifts to foreign courts as early as the Anuradhapura period.
By the medieval era, Ceylon sapphires had become the benchmark against which all other blue sapphires were measured. Arab merchants, Portuguese explorers, and later the British colonial administration all recognised the island's unique geological endowment — a combination of Precambrian metamorphic rocks and alluvial deposits that produced corundum of exceptional quality.
The Famous Stones
Several of history's most celebrated sapphires trace their origin to Sri Lankan soil:
- The Logan Sapphire — 423 carats, one of the largest faceted blue sapphires in the world, now housed in the Smithsonian Institution.
- The Star of Bombay — 182 carats, a legendary star sapphire gifted to silent film star Mary Pickford, displayed at the Smithsonian.
- The Stuart Sapphire — 104 carats, historically set in the British Imperial State Crown, with origins traced to Sri Lanka.
- The Blue Belle of Asia — 400 carats, discovered in the early 20th century and sold at auction in 2014 for over $17 million.
What Makes Ceylon Sapphires Special
Ceylon sapphires are prized for their distinctive cornflower to royal blue colour — a bright, luminous hue with a slight violet undertone that distinguishes them from the darker, inkier blues of Kashmir or the deeper tones of Madagascar. The island's sapphires are also noted for their high clarity, with many stones being eye-clean without the milky silk that characterises some other origins.
Sri Lanka is also one of the world's few sources of padparadscha sapphires — the rare pink-orange variety named after the lotus flower. These extraordinary stones, found primarily in the Ratnapura district, are among the most sought-after and expensive coloured gemstones on the market.
Modern Mining and Ethics
Today, Sri Lanka's gemstone industry operates under some of the most progressive mining regulations in the world. Small-scale, community-based mining is the norm, with strict environmental rehabilitation requirements and a government licensing system that ensures fair labour practices. Unlike some gem-producing regions, Sri Lanka has largely avoided the conflict and exploitation that have tarnished the trade elsewhere.
The tradition of pit mining — narrow vertical shafts dug to reach gem-bearing gravel — continues much as it has for centuries, with miners using hand tools and traditional techniques passed down through generations. This artisanal approach, combined with modern certification and transparency, makes Sri Lankan sapphires a responsible choice for ethically-minded collectors.
A Living Heritage
From the ancient kings of Anuradhapura to today's auction houses, Ceylon sapphires have maintained their position as the gold standard of blue gemstones. Their combination of colour, clarity, historical pedigree, and ethical provenance ensures they will continue to captivate collectors for centuries to come.
