Ruby other rubies of similar quality. After color follows clarity: similar to diamonds, a clear stone will command a premium, but a ruby without any needle-like rutile inclusions may indicate that the stone has been treated. Ruby is the traditional birthstone for July and is usually more pink than garnet, although some rhodolite garnets have a similar pinkish hue to most rubies. The world's most valuable ruby is the Sunrise Ruby. Rubies have a hardness of 9.0 on the Mohs scale of mineral hardness. Among the natural gems only moissanite and diamond are harder, with diamond having a Mohs hardness of
The Ruby in the Smoke The Ruby in the Smoke The Ruby in the Smoke (1985) is a novel by the English author Philip Pullman. It was also adapted for television in 2006. It is the first of the Sally Lockhart Quartet. It is followed by "The Shadow in the North", "The Tiger in the Well" and "The Tin Princess". The book was also adapted for the stage at the Edinburgh Festival Fringe in August 2016. A TV film adaptation written by Adrian Hodges and starring Billie Piper was produced by the BBC. It aired on BBC One on 27 December 2006 and on PBS's