Treatments can improve the colour and clarity of Rubies which make them more desirable in the final market. In a nutshell, “Treat Ruby Gemstones” means to alter the Ruby in some way in order to make it more beautiful.
Are treated rubies real?
It’s a permanent treatment, these gems are formed under tremendous heat and pressure in nature, so it a continuation of the heating that occurs in nature. It is rare to find a polished ruby or sapphire that has not had heat treatment. Heat treatment does not alter the makeup of the Stone.
What does it mean if a ruby is heat treated?
Heat treatment is used to either develop or intensify a ruby’s natural color. Heat treatment can also improve the clarity of a ruby by removing or reducing inclusions and making them less visible. The way this works is quite technical.
Are heat treated rubies bad?
It is good to note that the Gemological Institute America and other certification authorities ACCEPT that heat treatment is perfectly normal for enhancing a natural ruby and indeed that the process is permanent and will not degrade over time.
Do rubies need to be heat treated?
You should assume your ruby is heated. Rubies that have a report from an independent laboratory like GIA confirming there is no evidence of heat command a premium due to their rarity. Rubies that have been diffused or are glass filled are worth less than heated rubies.
How much is a 1 carat ruby worth?
Ruby – Single Stone Price List
|Size||V. Fine||Finer Grade|
|under 1 ct.||call||$500-850|
|1 carat size||call||$700-1500|
|2 carat size||call||$1000-2500|
|3 carat size||call||$1500-2500|
How can you tell a quality ruby?
Real rubies glow with a deep, vivid, almost “stoplight” red. Fake gems are often dull: they are “light, but not bright.” If the gem is more of a dark red, then it may be garnet instead of a ruby. If it is a real ruby, however, know that darker stones are usually worth more than lighter stones.
What can break a ruby?
Rubies are extremely hard and rank almost at the top of the toughness scale. They’re intensely resistant to scratches and cleavage and are near-impossible to break. Even if the ruby is cracked, it can still withstand further damage. Although, a bad enough crack can eventually break the stone.
What does heat treating gems do?
Heat Treatment is a gemstone’s exposure to high temperatures that alters the color and increases the clarity. Specifically, heating is used to lighten, darken or enrich the color. Without heat treated gemstones, fine gems’ availability in the most desirable colors would be scarce.
When did they start heat treating rubies?
The first stones heated allegedly originated from the Pailin mines in Cambodia. Treated sapphire rough was given for cutting to lapidaries in the Jura Mountains of Europe at least by 1920 (and possibly as early as 1915).
What is an unheated ruby?
Unheated Ruby is classified as Natural Ruby that has not been heat treated. … The characteristics of the inclusions in unheated ruby are intact silk needle-like intersecting at 60 degrees angle. Other following properties of inclusions are unaltered calcite and prismatic like crystals.
What does flux healed mean?
Flux healing involves heating corundums with borax or other fluxes. These fluxes actually dissolve the surfaces, including the internal surfaces of cracks. The corundum within this molten material then re-deposits on the fracture surfaces, filling and healing the fractures shut.
Are glass filled rubies bad?
In short, glass filling is the practice of fracture-filling rubies with lead glass to improve their appearance. I’m going to lay it on the line, folks: this is bad. It takes poor quality, fractured material and turns it into pretty looking transparent red. It looks good but it is complete junk.
What is pigeon blood ruby?
Pigeon’s blood is the term applied to the most highly saturated colour and natural red fluorescence possible in a ruby. Weighing an impressive 10.05 carats, the Ratnaraj is a wonder of the natural world.
What is Burmese ruby?
The Burmese ruby is one of the most valuable variations of the corundum mineral family. … The Burmese ruby, however, is a piercing bright red, sometimes referred to as “pigeon’s blood”. All rubies owe their coloring to the element chromium and the intensity of that color depends on the amount of chromium exposure.
What does Enhanced ruby mean?
It is a common treatment that enhances the value and the appearance of natural rubies. While undergoing this treatment, the ruby is placed under a high temperature of 1800 degrees. The heat dissolves the rutile inclusions and improve the color, transparency and clarity of the ruby.