When shopping for gemstones, you might come across the terms “heat-treated” and “non-heat-treated.” If you’re unsure what these terms mean or how they affect your gemstone’s quality, this blog post will break down everything you need to know to make a decision!
What is heat treatment?
Heat treatment is one of the most common enhancement techniques used in the gemstone industry. It involves exposing the stone to high temperatures to improve its colour, clarity, or both. This process mimics the natural conditions that gemstones undergo in the Earth’s crust, only it happens in a controlled lab.
Why Do Gemstones Get Heat Treated?
- Enhanced Color: Heat treatment is often used to intensify or change the colour of gemstones. The gemstones will also have a more uniform colour. For example, heat-treated sapphires and rubies have more vivid hues than the untreated versions.
- Improved Clarity: The process can also improve a gemstone’s clarity by dissolving tiny imperfections, making the stone appear cleaner and more transparent.
- More affordable: As the process is widely used to make high-quality gemstones accessible
What Are Non-Heat Treated Gemstones?
Non-heat-treated gemstones are referred to as “natural” gemstones. These haven’t had any treatments to alter their appearance – just as they are from mining.
Because they are rarer, non-treated stones can be more valuable and sought after, especially among collectors.
Durability: Does Treatment Affect Strength?
A common misconception is that heat-treated gemstones might be more fragile than untreated ones. The treatment does not necessarily weaken a stone. However, it’s important to handle any gemstone with care to avoid damage, whether it’s treated or not.
How to Choose?
When deciding between a heat-treated or non-treated gemstone, it comes down to personal preference and your specific needs.
- Treated Gemstones: These are a great option if you’re looking for vibrant colours at a more accessible price point. Because heat treatment is permanent, you won’t have to worry about the gemstone’s colour fading over time.
- Non-Treated Gemstones: If rarity and natural beauty are important to you, then a non-treated gemstone might be the way to go. These stones can be more expensive, but they are prized for their authenticity and untouched condition.
Both heat-treated and non-heat-treated gemstones have their place in the jewellery world. While heat-treated gems offer enhanced beauty at a lower price, non-treated stones appeal to those who value rarity and purity. Whichever you choose, always be sure to ask your jeweller about any treatments a gemstone has undergone and choose a reputable seller who is transparent about their sourcing and processes.
At Émerah we provide both heat-treated and non-treated stones, ethically sourced and responsibly selected, so you can take your pick!
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Double-Sided Pendant
Price range: HK$7 758 through HK$10 024 -
Element Stud
Price range: HK$1 482 through HK$4 533 -
Chain Ring
Price range: HK$2 393 through HK$3 439 -
Roman Ruby Ring
Price range: HK$5 444 through HK$7 362
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