Bidspirit auction | Platinum London Blue Topaz &

Platinum London Blue Topaz & Diamond Halo Pendant Necklace 18” - Platinum (900) pendant having a 1.51-carat london blue topaz, cut bright oval-brilliant. Exhibiting even, saturated teal-blue color with high internal clarity, creating strong light return even under minimal illumination. A concentric diamond surround, together with a pave quatrefoil surmount, contributes over half a carat of fine melee that raises the visual spread and throws additional scintillation across the face of the gemstone. Fabricated entirely in platinum alloys, the setting provides high tensile strength and precise diamond seats while offering excellent long-term resistance to wear and tarnish. • Gross Weight – 4.0 g • Metals – pendant in platinum 900; box-link chain in platinum 850 with spring-ring clasp and sliding station for length adjustment • Stones – oval mixed-cut London blue topaz 1.51 ct (medium-dark, slightly greenish blue, eye-clean); round brilliant diamonds 0.52 ct tw (est. G–H color, VS–SI clarity) forming a halo and quatrefoil bail • Dimensions – pendant 18 × 9 mm including bail; chain adjusts up to 45 cm (18 in) • Hallmarks – “Pt900” on pendant frame, “Pt850” and maker’s tag on chain • Condition – very good; faint rubs on the clasp under loupe, no abrasions to the topaz or diamond facet edges