Sleeping Beauty turquoise combined with sky blue topaz in 18K yellow gold over sterling silver hoop earrings creates a blue-on-blue composition where two different blue stones - each with its own distinct color character - contribute individually while creating a harmonious combined blue palette. The Sleeping Beauty's characteristic pure robin's-egg blue and the sky blue topaz's clean, bright cerulean blue are related but distinct tones, the turquoise's matte-cabochon surface contrasting with the topaz's faceted sparkle. In warm gold hoops, both blues appear most vivid against the gold frame. Note: no proprietary color name for the topaz.