Gemmologist Dr Gamini Zoysa

Get to know us

Dr Gamini Zoysa is a world renowned gemmologist, Former President and current Executive Committee Member of the Gemmologists Association of Sri Lanka (GASL) , Former Sri Lankan President and Ambassador to the International Colored Gemstone Association (ICA) and on the Advisory Board of the Asian Institute of Gemmological Services (AIGS). He loves sharing his knowledge and passion for Gemology, passing this down to his family.

Who are we
  • GIA Logo

    Gemmological Institute of America

  • ICA Logo Landscape

    International Colored Gemstone Association

  • Gem A Logo

    Gemmological Association of Great Britain

  • 50 Years Experience

    With over 50 years of experience at the highest level of the Sri Lankan gemmological industry, we are able to ensure we acquire and sell only the finest quality natural sapphires.

  • Certified Stones

    All our sapphires are certified so you can be confident you are receiving truly authentic natural sapphires. Our certifications come from either Ceylon Gemmological Services in Colombo, GIA in Bangkok or the SSEF in Switzerland.

  • Family Business

    We are a family run business from which our Sri Lankan heritage is key, working both in London and Sri Lanka enables us to obtain the finest sapphires direct from source, for the best quality and value, without the middle men.

Sri Lankan gem miner with a blue sapphire crystal

A fair deal for all

We work exclusively with Ceylon sapphires. By working directly with local miners and suppliers in Sri Lanka we are able to give a better deal to them, their families and communities.

Learn More

Custom Ceylon Sapphire Rings

  • What is a Ceylon Sapphire

    A Ceylon sapphire is a sapphire sourced from Sri Lanka, a region with a rich gemstone heritage dating back centuries. Renowned for their natural beauty and brilliance, Ceylon sapphires are also celebrated for their ethical mining traditions and historic royal connections, making them among the world’s most sought-after gemstones.

    What is a Ceylon Sapphire? Origin, Colours & Value 
  • Why choose a loose Sapphire?

    A loose sapphire allows you to create a truly bespoke piece of jewellery centred around the unique character of the stone itself. As the sapphire is often the focal point of a ring or pendant, choosing the gemstone first ensures the design is crafted to complement its natural beauty and individuality.

    Advantage of buying a loose Sapphire 
  • What is an unheated Sapphire?

    An unheated sapphire is a sapphire that has not undergone heat treatment to enhance its colour or clarity, remaining entirely natural. As heat treatment is standard within the gemstone industry and used on the majority of sapphires, unheated stones are far rarer and especially valued for their natural beauty, authenticity, and scarcity.

    About Unheated Ceylon Sapphires 
  • What are inclusions?

    Inclusions are natural characteristics formed within a sapphire during its creation beneath the earth’s surface. Often referred to as the gemstone’s unique fingerprint, inclusions provide insight into a sapphire’s natural origin and individuality, and are part of what makes every sapphire so interesting and unique.

    Sapphire Inclusions Explained 
  • Sapphire or Diamond?

    Sapphires and diamonds each offer their own unique appeal, making the choice entirely personal. While diamonds are prized for their brilliance, sapphires are celebrated for their individuality, natural colour, and rarity — offering a distinctive centrepiece with character and heritage unlike any other gemstone.

    Difference between Sapphires and Diamonds 
  • How do I choose a sapphire?

    Choosing a sapphire ultimately comes down to personal preference, as every sapphire is entirely unique in its colour, character, and appearance. Factors such as shape, size, and whether the stone is heated or unheated all contribute to its individuality. The ideal sapphire is one that best reflects your personal style and the piece of jewellery you wish to create.

    Choosing a Ceylon Sapphire Advice 
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