Is a heat treated sapphires bad?

Heat treatment alone does not affect the durability of sapphires. It is important to be aware that fracture filled or doublet sapphires can be problematic in future as they are less durable.

Are Ceylon sapphires heat treated?

The key term is “untreated,” meaning a sapphire is natural (not lab created) and has not been subject to any chemical or heat treatments.

Are heat treated sapphires less valuable?

Heating is an accepted treatment for sapphire. But for fine-quality sapphire, confirmation from an independent laboratory like GIA that there is no evidence of heat adds to a sapphire’s rarity and value.

Are natural sapphires heated?

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.

How can you tell if a sapphire is heat treated?

The study of inclusions in sapphires is a sure way to detect if a sapphire has been treated. Heating sapphires at extreme temperatures change the internal characteristics so much that it is quite easy for a trained gemologist to determine if the sapphire has been heated.

How can you tell if a gem is 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.

What percentage of sapphires are heat treated?

95 percent
If a gemstone has been heat treated, it simply means it has undergone some type of thermal process in order to alter or improve its appearance. In this modern era, nearly 95 percent of sapphire gemstones are heat-treated for several important reasons.

How can you tell if a sapphire is heat-treated?

How can you tell if a gem is heat-treated?

What percentage of sapphires are heat-treated?

How can you tell if a gemstone is heat-treated?

Are all gemstones heat treated?

Not at all, heating gemstones have nothing to do with whether the gem is genuine or not. Many consider the treatment as an extension of the natural process. As long as the seller is transparent, and the color by heating is permanent (which it usually is), heat treatment is widely accepted in the gemstone industry.

What happened to Ceylon sapphire?

This new heat treatment brought a flow of new Ceylon sapphire on to the market, as stockpiles of once unusable material became saleable.

How does heat treatment affect the value of a sapphire?

Type 1 or more characters for results. How does heat treatment affect a sapphire’s value? Heating is an accepted treatment for sapphire. But for fine-quality sapphire, confirmation from an independent laboratory like GIA that there is no evidence of heat adds to a sapphire’s rarity and value.

What makes Sri Lankan sapphires so special?

Ceylon sapphires are also being heat treated with beryllium to create vivid blue and bright yellow sapphires from pale and poorly coloured material, which had been fetching high prices and rising demand in the global gem market. Sri Lanka is among the five most important gem-bearing nations of the world.

Where do you get blue sapphire from?

Ceylon Sapphire. Historically, the most famous sources for blue sapphire are Burma, Kashmir and Sri Lanka (known as Ceylon prior to 1972). Of the three, Sri Lanka has been the most prolific producer.