0.90 Ct. Green to Brown Alexandrite and Natural Diamond Halo Necklace, 14K White Gold

This 18 inch necklace from The Natural Gemstone Company is crafted in 14K white gold and thoughtfully balanced for both daily wear and special occasions. The focal line consists of five round mixed brilliant cut alexandrites totaling 0.90 carats, averaging approximately 0.18 carats per stone, exhibiting a green to brown color distribution with intense saturation. These alexandrites are graded as very slightly included, a clarity designation that indicates minimal inclusions visible only under magnification, which preserves excellent transparency and strong light return. The mixed brilliant cut has been selected to maximize fire and brilliance while preserving the inherent color change characteristics that make alexandrite rare and desirable. Complementing the center stones are 85 white round brilliant cut natural diamonds totaling 0.32 carats, averaging roughly 0.0038 carat per diamond, which serve as micro accent stones to increase scintillation and outline the alexandrite bezels. The diamonds are graded F color and VS1 clarity, meaning they are essentially colorless to the eye and possess very slight internal characteristics that do not affect the visual performance, ensuring a clean, bright halo that enhances the alexandrites without competing with their unique hue.

Beyond technical specifications, this piece reflects The Natural Gemstone Company’s commitment to ethical sourcing and responsible craftsmanship. Our diamonds are procured through supply chains that adhere to the Kimberley Process and industry best practices for traceability and conflict avoidance, and our colored gemstones are selected from trusted partners who provide documented provenance and adhere to responsible mining and labor standards whenever possible. Each alexandrite is hand-selected for color saturation and clarity, and stones are set by experienced artisans to ensure secure settings and optimal light performance. For the educated buyer, this necklace offers a combination of gemological merit and ethical assurance, pairing a scarce color-change gem with high-grade melee diamonds in a durable 14K white gold mounting that has been finished for lasting luster. The result is an investment-quality necklace that balances rarity, craftsmanship, and responsible sourcing, qualities that make it a meaningful addition to a curated collection or a considered gift for a discerning recipient.