Ruby ranks first among the five precious gems. High-quality rubies are highly sought after by the world. If you choose rubies? Please choose your favorite ruby with the editor of Zokai Jewelry. Under the premise of nature, experts use 4C to measure the value of gemstones, namely Color (χρώμα), Σαφήνεια (σαφήνεια), and Car-at (μέγεθος). […]
