Tourmaline in Signature Petra SettingBold and timeless, the Petra draws on the symmetry of Roman domessymbols of grandeur and mastery. Sculpted lines echo those found in temples, baths, and the Pantheon itself, framing the gem with the same strength and regality as the arches and vaults that inspired it. Set in 14k gold, this piece frames a 4. 25 carat olive green oval tourmalinea gem reclaimed from the deaccession of a 19th century London estate. The 14k gold setting has a band that