Indulge in the ethereal beauty of this 1.72ct round, color-shifting Songean sapphire! From purple-grey to teal blue depending on the light, this totally natural and ethically sourced gemstone will mesmerize. 7.3x4.51mm with some internal silk, visible from certain angles. Enjoy a timeless, elegant style with this stunning flat band 4-prong solitaire cast in 18k recycled yellow gold. The smooth, polished design measures 2mm wide for a classic yet modern look that's oh-so-comfortable to wear. Plus