Creatinine is a normal waste product produced by muscle metabolism. When your kidneys are functioning normally, they filter creatinine and other waste products out of your blood and send them out of the body through urine. A creatinine urine test measures the amount of creatinine in your urine and can help your doctor evaluate how well your kidneys filter waste. This is useful in diagnosing or ruling out kidney diseases and some other conditions.
These terms are based on old traditions from the west. These days, all gemstones are considered precious since they are all rare and there is a limited supply of them. The traditional list of gemstones that are considered precious stones are: Diamond.
Thanks to their superior hardness and cultural value as stones for engagement rings, diamonds are arguably the most popular gemstone. Diamonds are more versatile than people might think, though, coming in a wider variety of colors than their iconic colorless form and serving as a great stone for everything from earrings to tie pins.