红宝石是色美、透明的宝石级刚玉。主要成分是氧化铝(Al2O3)，红色来自铬(Cr)。自然没有铬的宝石是蓝色的蓝宝石。天然红宝石大多来自亚洲(缅甸、泰国和斯里兰卡)、非洲和澳大利亚，美国蒙大拿州和南卡罗莱那州也有一点。天然红宝石非常珍贵，工业用红宝石都是人造的。
红宝石原石
红宝石质地坚硬，硬度仅在金刚石之下。其颜色鲜红、美艳，可以称得上是“红色宝石之冠”。瑰丽、华贵的红宝石是宝石之王，是宝中之宝，其优点超过所有的宝石。有的古书中认为红宝石是“上帝创造万物时所创造的十二种宝石中最珍贵的。”
如今，人们把红宝石看作宝石中的珍品，把它当作七月生辰石，骄阳似火的七月，灿烂的阳光与红宝石夺目的红色光芒相互辉映，令人朝气蓬勃，奋发向上。所以人们又把红宝石比作热烈的爱情，将其作为结婚40周年的纪念石。所以，红宝石象征着勇敢、热情、恒久不变的爱。
天然红宝石非常稀少，因此很珍贵，文中此红宝石原石品质是上乘，颜色红紫相间，深沉有厚度，深透石中，天然浑成，整体结构自然，十分耐赏。自然的山水孕育了它，滋润着它的内在，这是一块历尽亿万年的渗透，才有的现在的神韵，价值连城，值得珍藏。
英文翻译：Ruby is a beautiful, transparent, gemstone grade corundum. The main ingredient is alumina (Al2O3), red from chromium (Cr). Naturally chromium-free gems are blue sapphires. Most natural rubies come from Asia (Burma, Thailand and Sri Lanka), Africa and Australia, with a little in Montana and South Carolina. Natural rubies are very valuable. Industrial rubies are man-made.
Ruby stone
Ruby is hard, only below diamond. Its color is bright red and beautiful, which can be called the “crown of red gems”. The magnificent ruby is the king of gems, the jewel of gems, superior in merit to all gems. Some ancient books say that rubies are “the rarest of the twelve precious stones which God created when he created all things.”
Nowadays, people regard ruby as the gem in precious stone, regard it as July birthday stone, scorching sun is like fire in July, brilliant sunshine and ruby dazzling red ray glow each other, make a person vigorous and vigorous, go up. So people compare the ruby to the passionate love, as the 40th anniversary of the wedding stone. So, rubies symbolize courage, passion, and unchanging love.
Natural ruby is very rare, so it is very precious. The original ruby stone in this paper is of excellent quality, with red and purple color, deep thickness, deep penetration into the stone, natural integration, natural structure, and very resistant to appreciation. The natural landscape gave birth to it, moistens its inner, this is a piece of penetration through hundreds of millions of years, only now have the charm, priceless, worth collecting.
