As gemstone wholesalers we at www.gemrockauctions.com offer a wide range of Gemstones and loose gemstones, Including Zircons, which are generally a yellow-golden, red, brown, and green coloured stone. It is a highly sought-after precious Gem, which for centuries has been widely used in the creation and encrustation of jewellery and everyday items. - The name either derives from the Arabic word zarqun, meaning vermilion, or from the Persian zargun, meaning golden-coloured. These words are corrupted into "jargoon", a term applied to light-coloured zircons. Yellow zircon is called hyacinth, from a word of East Indian origin; in the middle-Ages all yellow stones of East Indian origin were called hyacinth, but today this term is restricted to the yellow zircons. - Its chemical name is zirconium silicate and its corresponding chemical formula is ZrSiO4 - and its hardness ratio is - -. Zircon is regarded as the traditional birthstone for December. - The owners of www.gemrockauctions.com have their own factory and source their rocks and gemstones directly from miners or as close as possible in order to receive the right price, our factory can offer high discounts on sales we have 16 staff who cut gemstones full time and produce high quality products - we don’t cut artificial gemstones.