5.11 Ct. Cabochon Moonstone from Ceylon (Sri Lanka)

This exceptional blue flash moonstone from Ceylon is a rare and quietly commanding treasure, offered exclusively by The Natural Gemstone Company. We present one opaque 5.11 carat oval cabochon, measuring approximately 10.32 by 9.28 by 6.72 mm, with a silky milk white body and a cool blue adularescence that shimmers across its domed surface. The stone carries a clarity grade of very slightly included at eye level, an excellent polish, a light color intensity, and no enhancements, which together preserve its natural character and provenance. Because fine, untreated moonstones of this size and clean presentation are uncommon, this piece is ideal for a collector or client seeking a bespoke statement gem that sets them apart, a single treasure meant to be made into a signature jewel rather than another mass produced component.

When set into a custom design this moonstone rewards thoughtful pairing, creating an aura of refined exclusivity. In white metal such as platinum or 18 karat white gold, the cool blue flash is amplified, and a halo of small brilliant cut white diamonds will add scintillation that plays off the moonstone s soft glow without overpowering it. For a more intimate and rarefied contrast consider warm rose gold, which cradles the milky body and brings out pearlescent undertones, while small Ceylon blue sapphires on the shoulders echo the origin and add depth and color continuity. A three stone composition with tapered baguette diamonds or delicate pear shaped diamonds flanking the moonstone will elongate the oval silhouette and create a classical, museum quality ring. As a pendant, a low bezel with open gallery allows light to sweep under the cabochon, enhancing the moving blue flash, and a simple chain with spaced sapphire or white sapphire accents maintains an elegant, personalized restraint. For clients who prefer a softer, artisanal look, pair with pale aquamarine melee and rose cut diamonds in a hand forged cluster, a design that reads as bespoke and intimate. Every custom piece we create at The Natural Gemstone Company is conceived to spotlight the singular qualities of the stone, ensuring the blue flash moonstone remains the quiet hero of the composition, a jewel for an elite few who appreciate genuine rarity. For a private consultation on a one of a kind mounting, we welcome you to contact us and commission a design tailored to this unique gem.