What happens when a sapphire is heated?

For example, high enough iron content will give a green or yellow color to a sapphire; heating typically causes an iron-rich sapphire to turn a deeper yellow. If there is significant rutile to provide a source of titanium, the sapphire can turn a deep shade of blue green.

How do you tell if a gemstone has been heat treated?

Heat treatment is a very risky process as many gems have inclusions that expand at a different rate and cause stress fractures, which then becomes an identifying characteristic of heated gems, particularly sapphire and ruby which can display halos around inclusions within the gem.

How can you tell the quality of a sapphire?

You want to look for a sapphire that has no inclusions visible to the naked eye. experts look at the size, location and number of inclusions to judge clarity. The less visible the inclusions are, the higher the grade. Cut: The cut is essentially what makes a sapphire really sparkle.

What does no heat sapphire mean?

Unheated sapphires mean the sapphire is natural and it has not been enhanced by any form of heat treatment or any other treatment.

Why is my sapphire so dark?

Black sapphire is a nearly opaque stone whose color is so dark that it appears to absorb all light that enters the gemstone. The black color of the stone is a result of iron and titanium traces present in the mineral. Sometimes, this stone also looks very dark blue or gray color.

What is a natural heated sapphire?

Natural Heated Sapphires These are natural blue sapphires that are heated in industry-accepted temperatures to enhance the intensity of the blue color and their clarity. This is a standard, legal, and stable process that does not impact the longevity or durability of the sapphire.

What is an untreated sapphire?

In very short detail, an untreated sapphire is one that has been taken from the ground and then faceted. Nothing at all was done to the stone to alter the natural beauty, which only elements and process in the earth created naturally. These sapphires are exceptionally more rare and valuable.

How can you tell a natural sapphire?

Try the Breath Test Take your sapphire and breath on it slowly and deeply. Then check to see how long it takes for the fog to evaporate. If the sapphire is real, the fog should disappear very quickly, in about a second or two. This is because sapphires are naturally good at conducting heat.

Do heated sapphires look different from normal Sapphire?

No, the important factors for a desirable gemstone are a beautiful color, eye-clean clarity, well-cut, and pleasant crystal. However, heated sapphires do lack the natural and rarity appeal of unheated sapphires. By appearance, is there a difference between natural and heat-treated sapphires?

How do I buy an unheated Sapphire?

While buying an unheated sapphire, always insist on a certification from an independent gemological laboratory (ideally GRS, Gubelin, GIA or Lotus). Diamondère provides natural unheated blue sapphires on demand and it can be requested for any of it’s sapphire jewelry on the website.

What is the energy of a sapphire?

The energy of the sapphire is as Mother Nature produced it for us. For a similar looking natural heated sapphire, a natural unheated sapphire will cost multiples of the cost. You will typically see more visible inclusions in an unheated sapphire.

What is heated sapphire heat treatment?

Heated Sapphire Heat-treatment is a common practice to improve the clarity and enhance the color of Sapphire. A Sapphire is “Cooked” in furnaces to temperature between 500 and 1800 degrees Celsius, which is near to the melting point of Sapphire.