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THE ISLAND · GEM EDUCATION

Ratna-Dwipa -
the island of gems.

For over two thousand years, one small island has supplied the world's crowns and collectors. Here is what makes a Ceylon stone, how it reaches the light, and how to read the paper that proves it.

2,000+
YEARS OF MINING
75+
GEM VARIETIES FOUND
#1
BLUE SAPPHIRE SOURCE
90%
MINED BY HAND
KNOW YOUR STONES

Seven from the island's spectrum

Blue Sapphire
Blue Sapphire
CORUNDUM

The island's signature. Cornflower to royal blue, prized unheated. The gem that made Ceylon famous.

Ruby
Ruby
CORUNDUM

Red corundum from Elahera. Sri Lankan rubies lean pinkish-red with exceptional clarity and life.

Padparadscha
Padparadscha
CORUNDUM

The rarest sapphire - a delicate pink-orange named for the lotus blossom. Almost uniquely Ceylonese.

Cat's Eye
Cat's Eye
CHRYSOBERYL

A sharp band of light sweeps across the dome as it turns - chatoyancy at its finest, honey to milk-and-honey.

Moonstone
Moonstone
FELDSPAR

The blue-sheen moonstone of Meetiyagoda floats an inner glow of light across its surface - adularescence.

Garnet
Garnet
SILICATE

Rhodolite and hessonite in raspberry and cinnamon - brilliant, affordable, and abundantly Ceylonese.

Topaz & Spinel
Topaz & Spinel
RARE & UNUSUAL

Imperial topaz, cobalt spinel, zircon and more - the deep end of the island's 75-strong gem spectrum.

THE JOURNEY

From gravel seam to certificate

  1. 01
    MINED

    Hand-dug pits reach the gem-bearing gravel - the illam - in the Ratnapura valley.

  2. 02
    WASHED

    Gravel is washed and sorted by eye at the river. One basket in hundreds holds a keeper.

  3. 03
    CUT

    Master cutters shape each stone to hold its deepest colour and best life face-up.

  4. 04
    CERTIFIED

    An independent lab grades origin, treatment, colour and weight - no self-grading.

  5. 05
    OFFERED

    Photographed, priced in your currency, and offered to you directly - one conversation.

HOW TO READ A CERTIFICATE

Four lines that decide a stone's worth

Every Nilvara stone ships with an independent GIA or CSL report. These are the lines that matter most - learn them and you can buy any coloured stone with confidence.

ORIGIN

"Sri Lanka (Ceylon)" is the line collectors pay for. Country of origin is opinion-based but lab-backed.

TREATMENT

"No indications of heating" is the premium mark. Heat is common and accepted, but unheated commands more.

COLOUR

Trade terms like "royal blue" or "padparadscha" on a report add real value over a plain hue description.

WEIGHT

Carat plus millimetre dimensions - so you know if a stone faces up larger or smaller than its weight.

Ready to choose a stone?

Browse the collection, or tell us what you're looking for.