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Blog

09 Dec

Leuco Garnet: The Rare Colourless Grossular with a Hidden Glow

Leuco Garnet is an exceptionally rare, colourless member of the grossular garnet family. Unlike the more familiar green tsavorite or ...

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04 Apr

Testing Gemstone Origin: A Geological Exploration

Testing Gemstone Origins, we would like to share some insights into the geological exploration of gemstone origins. Understanding where...

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Ceylon Sapphire
25 Sep

What is Ceylon Sapphire

Sri Lanka, historically known as Ceilão by the Portuguese in 1505, was later called Zeylan by the Dutch. When the British colonized the...

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04 Sep

Cornflower Blue Sapphires

Sapphires come in a range of colors, but blue sapphires are the most popular and in demand. Within the blue sapphire category, there ar...

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12 Jun

Birthstones by Month: Discover Your Unique Birthstone

Regardless of age or gender, everyone has a unique birthstones! Whether your birthday is in the warm month of August or the chilly mont...

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29 May

Gemstone Mining in Sri Lanka: A Glimpse into Ethical Practices and Rich Heritage

Gemstone Mining in Sri Lanka, an island nation brimming with natural beauty and cultural heritage, is renowned worldwide for its except...

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10 May

What is Natural Alexandrite: Discover Natural Chrysoberyl Gems

Dubbed the chameleon of gemstones, alexandrite shifts from green in sunlight to red in lamplight, earning it the nickname “emerald by d...

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Blue Sapphire
23 Apr

Ceylon Blue Sapphire: Discover the Beauty of Sri Lankan Blue Sapphires

Sri Lanka's Gem Heritage: A Treasure Trove of Ceylon SapphiresSri Lanka's gem industry boasts a storied and vibrant history, ea...

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16 Apr

Ceylon Padparadscha Sapphires: Why They’re Called King Sapphire

In the world of sapphires, you'll find many colors. But Ceylon Padparadscha sapphires stand out as some of the rarest. Their mix of pin...

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Unheated vs. Heated Sapphires: Understanding the Key Differences
15 Feb

Unheated vs Heated Sapphires: Understanding the Key Differences

Unheated vs Heated Sapphires: Understanding the Key Differences What Are the Differences Between Natural and Heated Sapphires? When c...

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Recent Posts
  • Leuco Garnet: The Rare Colourless Grossular with a Hidden Glow
    December 9, 2025 No Comments
  • Testing Gemstone Origin: A Geological Exploration
    April 4, 2025 No Comments
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Luster Blue is your go-to for top-quality, ethically sourced natural sapphires. Unlike others, our sapphires are 100% natural - no synthetic methods, extreme heat treatments, diffusion, irradiation, glass filling, or oiling are used. This means our sapphires maintain their true beauty, rarity, and are more valuable than treated ones. Our collection includes a wide range of colors: vibrant blues, pinks, yellows, pure whites, and other unique shades. Each sapphire is precisely cut by us and can be bought as is (loose) or set in personalized jewellery just for you. Our team of jewellery and gemstone experts will guide you in creating your dream sapphire piece. Explore our extensive selection of natural sapphires and bespoke sapphire jewellery to see why Luster Blue stands out in the world of gemstones.

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  • Home
  • Gemstones
    • Precious Stones
      • Blue Sapphires
      • Yellow Sapphires
      • Star Sapphires
      • Padparadscha Sapphires
      • Peach, Champagne and Apricot Sapphires
      • Pink Sapphires
      • Ruby
      • Teal & Green Sapphires
      • Violet and Purple Sapphires
      • White Sapphires
    • Semi Precious Stones
      • Amethyst
      • Aquamarine
      • Chrysoberyl
      • Garnet
      • Moonstone
      • Spinel
      • Tourmaline
      • Zircon
    • Pairs (All Colours)
    • Rare Gemstones
  • B2B Trade Portal
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