Heated VS Unheated Sapphires & Rubies + Prices

Let’s talk about heated and unheated sapphires! What heat treatment is and all the questions you may have about it. Heat treatment is a very common and accepted practice in the world of jewelry. Gemstones are exposed to high temperatures to enhance the color and clarity.
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Heating gemstones generally enhances their color. They can be lightened, darkened, or changed through heat treatment. For example, white sapphires can be heated and turned blue, because that is a more desirable color in sapphires. Heat treatment is applied to all shades of sapphire, but mostly to achieve the highly sought-after Royal Blue color as it is extremely rare to find that color in nature. Heating sapphires also enhances their clarity! When the stones are heated, it’s almost as if the imperfections are melted.

Although other treatments may be frowned upon within the jewelry industry, heat treatment is a common and accepted practice! Instead of thinking of it as a treatment, think of it as an enhancement. When buying a sapphire, it is expected that the stone you purchase has been heated, unless specifically stated that it hasn’t.

Although heat treatment does not diminish the value of a stone, an unheated sapphire of a good color will be much more valuable than an unheated one because of its rarity. For example, we have a heated 2.6 ct sapphire that values $9568, whereas a non-heated and slightly lighter sapphire in almost the same size is worth $9250. That is because it was naturally found in this extremely sought-after color. Comparably, a paler heated sapphire also in the same size is valued at $1220. This jump in the price is due to the heat treatment.

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🔹 Topics Covered in the Video:
-What is heat treatment in sapphires?
-Why are sapphires heated?
-Is heat treatment in sapphires common?
-Heated vs unheated sapphires: What's the difference?
-Does heat treatment affect value?
-Unheated sapphires with strong color are significantly rarer and worth more
-Real price comparison between unheated and heated sapphires
-Is heat treatment ethical or accepted?
-What to ask when buying a sapphire
-Custom sapphire engagement rings available through Fine and Flux


Fine and Flux Jewelry is a jewelry brand that specializes in custom design and engagement rings. We create all our jewelry in-house, in a homely studio downtown Montreal, Canada, free shipping worldwide!
We create all our jewelry videos to entertain and educate you so you have a better understanding on how it's made, how to make an educated purchase, and also what to look out for.
Do not try anything you see in these videos at home.
For more information or to book an online appointment please write to us at [email protected] and we will be happy to get back to you quickly.
00:00 Introduction
00:39 What are heat treatments for gemstones?
02:02 Are heat treatments good?
03:25 Prices for heated Vs unheated sapphires and rubies