Short Description:
Gem bound all kinds of gem grade corundum beyond ruby are called sapphire. Sapphire mineral name for corundum, corundum group minerals. Actually the gem grade corundum in nature divides gules outside say ruby, all sorts of color is like blue, light blue, green, yellow, gray, colorless etc. of the rest, all call sapphire, or call colour sapphire, add color name before sapphire namely, be like pink sapphire.
Sapphire’s biggest characteristic is color uneven, visible pa...
Product Detail:
Yellow sapphire is also known as topaz in business. A variety of yellow gem grade corundum. The color ranges from light yellow to canary yellow, golden yellow, honey yellow and light brown yellow, with golden yellow being the best. Yellow is generally associated with the presence of iron oxide. In addition to topaz, the canary yellow of sapphire is not common in other gemstones. The world’s largest natural yellow sapphire is produced in Sri Lanka. It weighs 46.5 carats. ...
Product Detail:
Yellow sapphire is also known as topaz in business. A variety of yellow gem grade corundum. The color ranges from light yellow to canary yellow, golden yellow, honey yellow and light brown yellow, with golden yellow being the best. Yellow is generally associated with the presence of iron oxide. In addition to topaz, the canary yellow of sapphire is not common in other gemstones. The world’s largest natural yellow sapphire is produced in Sri Lanka. It weighs 46.5 carats. ...
Product Detail:
Ruby [1] , which means corundum of a red color, is a type of corundum and consists primarily of aluminum oxide (AL 2O 3) . The red color comes from chromium (CR) , mainly Cr2O3, the content is generally 0.1 ~ 3% , the highest is 4% . Containing Fe, Ti and blue said Sapphire, non-chromium CR color of other colors of corundum also collectively known as Sapphire.
Most natural rubies come from Asia (Burma, Thailand, Sri Lanka, Pakistan, China Xinjiang, China Yunnan, etc.) , Africa...
Product Detail:
Yellow sapphire is also known as topaz in business. A variety of yellow gem grade corundum. The color ranges from light yellow to canary yellow, golden yellow, honey yellow and light brown yellow, with golden yellow being the best. Yellow is generally associated with the presence of iron oxide. In addition to topaz, the canary yellow of sapphire is not common in other gemstones. The world’s largest natural yellow sapphire is produced in Sri Lanka. It weighs 46.5 carats. ...
Product Detail:
Yellow sapphire is also known as topaz in business. A variety of yellow gem grade corundum. The color ranges from light yellow to canary yellow, golden yellow, honey yellow and light brown yellow, with golden yellow being the best. Yellow is generally associated with the presence of iron oxide. In addition to topaz, the canary yellow of sapphire is not common in other gemstones. The world’s largest natural yellow sapphire is produced in Sri Lanka. It weighs 46.5 carats. ...
Product Detail:
Yellow sapphire is also known as topaz in business. A variety of yellow gem grade corundum. The color ranges from light yellow to canary yellow, golden yellow, honey yellow and light brown yellow, with golden yellow being the best. Yellow is generally associated with the presence of iron oxide. In addition to topaz, the canary yellow of sapphire is not common in other gemstones. The world’s largest natural yellow sapphire is produced in Sri Lanka. It weighs 46.5 carats. ...
Product Detail:
The color changing Sapphire in Corundum is real, it will appear different colors in different light, also known as color changing corundum or color treasure, the color change is expected to be caused by the chrome element in corundum. It will be grey-blue or violet in sunlight, purple or Magenta in yellow light, bright colors are the best, but unfortunately they generally appear dark, of course, bright colors are also available, the greater the color difference, the more expen...
Product Detail:
Pink Sapphire reddish sapphire: earlier, the international gem community believed that only corundum with medium depth to dark red or purplish red can be called ruby. Those that turn red light to very light are called pink sapphires. However, at the third session of the International Association of colored gemstones held in Sri Lanka in May 1989, it was decided to abolish the name and include such gemstones into the scope of Ruby (but some people still disagree with this resol...
Product Detail:
Pink Sapphire reddish sapphire: earlier, the international gem community believed that only corundum with medium depth to dark red or purplish red can be called ruby. Those that turn red light to very light are called pink sapphires. However, at the third session of the International Association of colored gemstones held in Sri Lanka in May 1989, it was decided to abolish the name and include such gemstones into the scope of Ruby (but some people still disagree with this resol...