2.33 carat weight oval medium red ruby. This ruby is slightly included and exhibits high brilliance. 8.5 x 6.5 mm.
Quality Gemstone Jewelry Coupons from Angara Jewelry.
How is a diamond the strongest material in the world?
I’ve heard that a diamond is the strongest material in the world since a diamond can only be cut by another diamond. I do not understand that. Can’t it be cut or broken with a chainsaw or something? Even possibly a very strong hammer?
Since we see the results every day in jewelry stores, we know that rough diamonds can be cut, but only by other diamonds — usually in the form of diamond dust..
In most cases, a diamond will be cut with a saw blade. Since diamonds are the hardest material known (which means they cannot be scratched with any other substance), only diamonds can cut diamonds. So the diamond is securely mounted and held against a thin alloy blade impregnated with diamond dust and covered with linseed oil. As the blade turns, it carries small particles of new diamond dust which sticks to the oil and continues the process until the entire diamond is split in two. This can take several days for a diamond over 1 carat or more.