SPR Gems
A royal blue Ceylon sapphire held in jeweller's tweezers over midnight-blue velvet

Ratnapura · Sri Lanka

The Ceylon Blue Sapphire

For over two thousand years, one island has given the world its most coveted blue. Kings wore it. Empires traded it. Ours are natural, untreated, and certified at origin.

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Mohs hardness

Second only to diamond

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Years of recorded trade

From ancient Rome to today

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Refractive index

The source of its fire

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Specific gravity

Dense, durable corundum

An oval royal blue Ceylon sapphire ring in yellow gold on midnight velvet

“The most famous engagement ring in the world carries a Ceylon blue sapphire at its heart.”

A stone of legend

Two thousand years of fame

  1. c. 77 AD

    Pliny the Elder writes of Taprobane

    Rome's great naturalist records the gem riches of the island Greeks called Taprobane — Ceylon's sapphires enter Western history.

  2. 1292

    Marco Polo reaches Ceylon

    The Venetian marvels at the island's sapphires, among the finest he has seen in all his travels through the East.

  3. 1901

    The Star of India — 563.35 ct

    The largest gem-quality blue star sapphire ever found, mined in Ceylon, is gifted to the American Museum of Natural History by J.P. Morgan.

  4. 1960

    The Logan Sapphire — 422.99 ct

    A flawless Ceylon cushion-cut, among the largest faceted blue sapphires in existence, finds its home at the Smithsonian.

  5. 1981

    The ring that stopped the world

    A 12 ct oval Ceylon blue sapphire becomes Lady Diana Spencer's engagement ring — today worn by the Princess of Wales.

  6. 2014

    Blue Belle of Asia — 392.52 ct

    This Ceylon giant sells for $17.3 million, setting a world record price for any sapphire at auction.

Loose Ceylon blue sapphires arranged from pale sky blue to deep royal blue

A legend of colour

Every blue you can dream. One you can never forget.

Trace iron and titanium, sealed in corundum half a billion years ago, paint Ceylon sapphires in a spectrum of blue — from airy cornflower to the deep, velvety royal blue the world’s collectors chase. Ceylon stones are famed for a bright, open colour that stays alive even in low light.

Sky Blue

Cornflower

The Ceylon signature

Royal Blue

The most coveted

Velvet Blue

Midnight

Born of the island

From ancient gravels to your hands

Sri Lanka — Serendib, Taprobane, the ‘Island of Gems’ — is the oldest sapphire source on earth. We buy at origin, from mining families we know by name.

A traditional gem mine in the lush green hills of Ratnapura, Sri Lanka

Chapter 01

The mines of Ratnapura

In the island's southwest, the 'City of Gems' has yielded sapphires for over two millennia. Shallow pits, sunk by hand into ancient river gravels, remain the gentlest way to reach them.

Hands washing river gravels in a woven basket to reveal rough sapphires

Chapter 02

The washing

Gravels from the Kalu Ganga are washed in woven baskets — a rhythm unchanged for centuries. Each basket is a lottery of light: most hold nothing, some hold history.

A lapidary faceting a blue sapphire on a polishing wheel

Chapter 03

The cutting

Master lapidaries orient every rough crystal by eye, cutting to deepen colour and protect weight. A single wrong angle can cost a carat — or the colour itself.

Anatomy of a legend

What makes a sapphire great

Four virtues decide a stone’s destiny. Tilt a card — feel the depth.

Colour

Iron and titanium, locked in corundum for 500 million years, produce the island's signature velvety blue — vivid, never inky.

Clarity

Microscopic rutile 'silk' softens incoming light, giving fine Ceylon stones their famous inner glow.

Cut

Oval and cushion cuts are favoured to deepen colour and protect weight — each stone oriented by hand, by eye.

Carat

Ceylon's gravels yield unusually large, clean crystals. Fine stones above five carats remain within reach.

Corundum · Al₂O₃Hexagonal crystal systemPleochroic — blue to violet-blueNatural & untreated
A gemologist inspecting a blue sapphire under laboratory conditions

Certified, always

Trust is not given. It is laboratory-issued.

Every Ceylon blue sapphire we offer is independently certified by internationally recognised laboratories — verifying natural origin, and confirming the absence of heat or any other treatment. What you see is what the earth made.

  • Independent certification for every stone
  • Treatment disclosure — most of ours are entirely unheated
  • Photographed as it is: no retouching, no enhancement

A wearable asset

Beauty you can hold. Value that holds.

Fine unheated Ceylon blue sapphires have quietly outperformed for decades — finite supply, growing demand, and auction records that keep climbing. Wear it for a lifetime; pass it on for generations.

Gemstones as investmentBook a private consultation
A Ceylon blue sapphire ring worn on an elegant hand against ivory silk

SPR Gems · Colombo

Own a piece of the legend.

Each Ceylon blue sapphire in our collection is natural, untreated, certified — and one of one. When it’s gone, it’s gone forever.

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