Genuine Ruby Corundum 8.5-16mm faceted hexagon beads (ETB00918) necklace gemstones Like boulder opal and koroit

Like boulder opal and koroit opal

These sapphires are not often seen on the market today

C: 19 x 48 x 6 mm

the colorful new jasper found in Mainland China

Though reportedly discovered in the 1940s

Genuine Ruby Corundum 8.5-16mm faceted hexagon beads (ETB00918) necklace gemstones Like boulder opal and koroitRuby A ruby is a pink to blood red colored gemstone, a variety of the mineral corundum (aluminium oxide). The red color is caused mainly by the presence of the element chromium. Its name comes from ruber, Latin for red. Other varieties of gem quality corundum are called sapphires. The ruby is considered one of the four precious stones, together with the sapphire, the emerald, and the diamond. Prices of rubies are primarily determined by color. The