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Ruby is one of the symbols of love.
Ruby is of the mineral species Corundum (ko-RUN-dum). The red color Corundum is Ruby, all other colors are Sapphire. The International Colored Gemstone Association passed a resolution that the light shades of the red hue be included in the category Ruby since it was too difficult to legislate where red ended and pink began. In practice, however, pink shades are now known either as Pinkish Ruby or Pink Sapphire. Either way, these gems are among the most beautiful of the Corundum family. Ruby hues range from strongly purplish-red to orangy-red. The finest ruby has a slightly purplish-red to pure vibrant red hue. As the hue becomes more purplish or orangy, the ruby moves down the quality scale into good and commercial ranges. The highest-quality rubies have vivid saturation.
The finest Rubies are the Burma and Ceylon Rubies. The Mogok region in Burma, or Myanmar, is the source historically for the finest Rubies. Ceylon (Sri Lanka) and Mong Hsu Burma Rubies are what I would consider the regions producing the next finest grade Ruby, whereas Rubies from Thailand, Africa and Vietnam are typically in the commercial grade of Ruby. Facet grade Ruby stones are usually cut in the Cushion or Oval shapes. Ruby is not usually heat sensitive, but a jeweler's torch could alter the color, it may be prudent to ask a Jeweler to remove the stone before applying his torch. There are not very many chemicals that could attack this gem, but if boiled in a diamond cleaning kit the stone can lose its polish. Also Jewelers pickling solutions containing boron will etch the surface.
Rubies are an excellent choice for investments that are today still more valuable and rare than even the top quality colorless diamonds. Natural "unheated" top quality Rubies never decrease in true value and remain a highly valued Collectors Gemstone.
TREATMENTS - Over 99% of all Ruby on the market is heat treated, to stabilize and/or enhance the color and/or clarity. The typical heat treatment process is a permanent process that does not adversely affect the performance and durability of the gemstone, so there's no need to worry when you see this enhancement disclosed. The typical heat enhancement procedure performed on Ruby from Sri Lanka (Ceylon) normally refers to the lower temperature wood 'blow' heat method, whereas the typical heat enhancement procedure performed on Mogok, Myanmar, MongHsu, Thai, Vietnamese and African Ruby usually refers to the high temperature furnace fired method. Both heating methods are accepted trade practices, and have been for many generations. The heat treatment process is permanent and does not adversely affect the performance, and durability of the gem, but in recent years demand for rare natural non-heated non-treated (lead or glass filling) top quality Ruby has caused these gems to command a somewhat higher premium, depending on the gem.
CARE - It is usually safe to clean Ruby in an Ultrasonic Cleaner, and generally safe to use a steamer, but I still recommend Ionic Cleaners and/or warm, soapy water and a soft brush as the most trustworthy way to clean Ruby jewelry.
PICTURE IS ENLARGED
Gem type:RUBY
SHAPE | ROUND FACET | TREATMENT | NATURAL THEN GLASS FILLED |
WEIGHT | 2.27ct | ORIGIN | AFRICA |
DIMENSIONS | 7.4x7.4x4.3mm | CLARITY | TYPE II - VS |
COLOUR | BLOOD RED | HARDNESS | 9 |
LUSTRE | VITREOUS | QUANTITY | 1 |