1.70 Ct. Greenish Yellow Sapphire from Madagascar

This exceptional transparent 1.70 carat radiant shape greenish yellow sapphire measures 6.52 x 6.31 x 4.25 mm, and delivers an elegant balance of size and light performance. The radiant cut combines brilliant facet geometry with trimmed corners to maximize scintillation and distribute color evenly across the table, and the excellent polish enhances surface brightness and sparkle. Clarity is graded as very slightly included at eye level, meaning that the stone appears clean to most observers while retaining natural internal character under magnification, and the light color intensity gives a fresh, sophisticated tone that is versatile in both contemporary and classic settings. This sapphire is unheated and shows no enhancement, a trait that materially increases rarity and value for an educated buyer, and its Madagascar origin is consistent with the vibrant and often unusual greenish yellow hues sourced from that island, making it an attractive piece for collectors and connoisseurs who prioritize provenance and natural state. The Natural Sapphire Company documents support the described characteristics, ensuring transparency in grading, measurement, and origin.

On the Mohs scale of mineral hardness, sapphire is a corundum and registers at nine, which places it just below diamond at ten, and significantly above common jewelry stones such as quartz at seven and topaz at eight, translating into excellent resistance to scratches and surface wear for day to day use. By contrast, Semi Black Opal commonly falls between 5.5 and 6.5 on the Mohs scale, which makes opal considerably softer and more susceptible to abrasion and impact, therefore opals require protective settings and gentler care. Semi Black Opal offers a dark body tone that enhances play of color, producing striking flashes against a deeper background, and when paired thoughtfully with a durable greenish yellow sapphire the combination can balance brilliance and color contrast while respecting the differing care needs. For buyers seeking a durable center stone that retains long term beauty, this unenhanced Madagascar sapphire combines rarity, technical quality in cut and polish, and robust hardness. The Natural Sapphire Company stands behind the gem description and grading, providing the factual detail an informed buyer needs to evaluate value, durability, and suitability for intended wear.