Ruby can command the highest prices of any colored gemstone. The per-carat prices of fine-quality rubies have been rising consistently, many times breaking auction records.

Ruby has been called the most precious of the 12 stones created by God. Ruby retained its importance with the birth of the western world and became one of the most sought-after gems of European …

Jul 1, 2013 · Ruby is the most durable gemstone, with a hardness rating of 9 on the Mohs scale, so it is relatively easy to care for. Cleaning a ruby regularly with just a little mild soapy water and a soft …

Shopping for ruby, the July birthstone? Learn about its history, origins, care and cleaning, and where rubies can be found to help you pick the right one.

GIA’s Gem Encyclopedia is a virtual journey through the science and lore of gemstones from across the globe. Each precious stone page features additional detailed gemological information, a buyer’s …

Ruby – in the late 1800s, ruby became the first gem to be created in a laboratory by Auguste Verneuil. In 1902, he announced the development of his flame-fusion process for synthesizing this beautiful gem.

Shopping for ruby, the July birthstone? Learn about its history, origins, care and cleaning, and where they can be found in order to help you pick the right one for yourself or a loved one.

Ruby can command the highest prices of any colored gemstone. The per-carat prices of fine-quality rubies have been rising consistently, many times breaking auction records. Click here and learn …

Increasing demand for ruby alternatives rekindled appreciation for spinel’s rich red color and history. In ancient times, southeast Asia’s mines yielded exceptional large spinel crystals, which became the …

An overview of ruby mining in the southern Indian states of Tamil Nadu and Karnataka.