When you think of colour gemstones, what comes to mind? Perhaps a dazzling sapphire or a vibrant ruby, their rich colors catching the light in mesmerising ways. But did you know that many of these undergo standard gemstone treatments to bring out their natural beauty?
In stones such as ruby, sapphire, tanzanite and aquamarine, the most common gemstone treatment is heating, although it is possible for some rare stones (only around 2% of the market) to be uncovered and available for polishing into their final form without any form of treatment. Let’s explore the fascinating world of gemstone treatments and why they’re an essential part of the gemstone industry.
What is Heat Treatment?
Heat is a time-honoured gemstone treatment that involves exposing gemstones to controlled high temperatures to enhance their color, clarity, and overall appearance. This technique is one of the oldest and most common methods of gemstone enhancement, with historical records indicating its use as far back as ancient civilisations.
By heating gemstones, internal impurities or inclusions can be altered or removed, improving their transparency and yielding stunning eye clean stones. Similarly, natural colors can be intensified or adjusted, transforming a dull stone into a radiant masterpiece. For example:
- Sapphires: Heat treatment can deepen their blue hue or create vivid yellow and pink tones.
- Rubies: Heating enhances their characteristic red vibrancy.
- Aquamarines: The process removes greenish tints, leaving behind a pure, striking blue.
Why is Gemstone Treatment by Heat Done?
In a world where first impressions matter, gemstones are no exception. Heat treatment enhances the visual appeal of stones, making them suitable for jewellery and increasing their market value (in cases where the untreated form would be unmarketable). But beyond aesthetics, this practice also makes gemstones more accessible—offering stunning pieces at a fraction of the cost of untreated stones.
Importantly, heat treatment is a permanent enhancement, ensuring that the gemstone retains its beauty for a lifetime. This durability makes heat-treated gemstones an excellent choice for both everyday wear and special occasions.
Transparency and Trust
At The Gem Bank we value transparency and responsible practices. That’s why we disclose whether a gemstone has undergone heat treatment, either via third party certificates like the GRS lab report shown, or one of our own in house graded reports. While treated stones are a fantastic option for their enhanced beauty and affordability, we believe in empowering our customers to make choices that align with their values.
How Does Heat Treatment Compare to Other Gemstone Treatments?
It’s essential to understand that not all enhancements are created equal. Some treatments, like dyeing or fracture-filling, may require extra care and may not be permanent. Heat treatment, by contrast, works with a gemstone’s natural properties, creating enduring results without compromising its integrity.
Embracing the Beauty of Treated Gemstones
As a family-run business with three generations of expertise, we at The Gem Bank celebrate the artistry involved in every gemstone—whether natural or treated. Gemstone treatment is not about masking flaws but about unlocking the full potential of what nature has created. It’s a process that blends human ingenuity with the earth’s raw beauty.
Ready to explore our stunning collection of heat-treated and natural gemstones? Visit TheGemBank.com today and let your creativity shine. Whether you’re a jewellery designer, maker, or enthusiast, our vast inventory is here to inspire your next masterpiece. Together, let’s craft beauty that lasts a lifetime.
