1.63 ct Red Ruby - Round

At 1.63 carats, this ruby from Burma carries its red color through a round cut, measuring 5.5 x 3.2 mm.

Ruby is the red form of corundum, sapphire's sibling species, and fine examples are among the most valuable colored gemstones per carat. Burma is the historic benchmark for ruby; Mogok reds are what the trade grades against, from deposits narrow enough to keep the name expensive. Its color was brought up by heat, a legitimate and accepted practice that the trade discloses and we disclose here.

A single natural gemstone with no duplicate behind it; once it is set or collected, there is no other. It will outlast everyone who owns it, which is most of what an heirloom really is. Hand-selected and filmed by Caveman Gems in good light, shown as honestly as a screen allows.