1.51 Ct. Moonstone from Tanzania

One beautiful transparent 1.51 carat cushion shape rainbow moonstone is presented by The Natural Gemstone Company, an exceptional choice for collectors and jewelry designers who value both beauty and provenance. This gem measures 6.85 by 6.67 by 5.19 millimeters, and it has a mixed brilliant cut that brings a lively interplay of light and adularescence across its surface. Clarity is very slightly included when evaluated at eye level, which means the stone reads as clean to the naked eye while retaining natural character under magnification. Color intensity is light, lending a delicate, ethereal appearance, and the polish is excellent, providing mirror like facets and smooth pavilion surfaces. Enhancement, none, and origin Tanzania. Opal type Fire Opal.

When buyers compare this rainbow moonstone to other options on the market, several advantages become immediately clear. Many moonstones offered in mass market settings are cabochon cut, milky, or heavily included, which softens their optical effects and limits their use in modern faceting designs. The mixed brilliant cut of this cushion shaped gem elevates brilliance and gives it a versatile sparkle that plays beautifully in both contemporary and classic jewelry styles. Versus many treated or enhanced stones, this moonstone is unenhanced, which preserves the integrity and natural value of the material. Compared with synthetic imitations or glass substitutes, a transparent natural moonstone of this weight and cut offers depth of light play that replicas cannot reproduce. Compared with fire opal options, which often command attention for fiery body color, this rainbow moonstone offers a subtler, cooler spectrum of light that is rarer in transparent form, and it is presented with full disclosure so conscious buyers can understand exactly what they are acquiring.

Ethical sourcing is a central pillar of how The Natural Gemstone Company brings this stone to market, and that matters deeply for consumers who care about social and environmental impact. This moonstone originates from Tanzania, a region where we work with vetted small scale miners and local partners to ensure fair compensation, safe working conditions, and minimal environmental disturbance. Rather than channeling stones through opaque middlemen, we prioritize traceability, and we include provenance information that allows buyers to feel confident about the journey of their gem from mine to finished piece. For the conscious collector who evaluates stones by both their aesthetic merit and their story, this moonstone represents a responsible choice, combining transparent practices with a genuinely natural, untreated gem. In a market where treatments, dyeing, and other enhancements are common, the unenhanced status of this stone gives it a higher ethical and curatorial value for discerning collections.

Practical considerations and styling suggestions make this rainbow moonstone an excellent addition to a conscious consumer collection, and its measurements and cut offer many creative possibilities for design. At 1.51 carats and with dimensions of 6.85 by 6.67 by 5.19 millimeters, it is ideal for a refined solitaire ring, an elegant pendant, or a focal stone in a bespoke pair of earrings. The cushion shape and mixed brilliant faceting will sit beautifully in both bezel and prong settings, and the light color intensity pairs wonderfully with white metals, such as platinum or white gold, to enhance the stone s cool adularescence, or with warm tones, such as rose gold, to create a modern contrast. From a value perspective, natural, transparent, untreated moonstones of this quality are less common than their milky counterparts, making this gem a smart pick for collectors who appreciate rarity without compromising on ethical sourcing. If you are building a conscious jewelry collection or commissioning a piece that tells a responsible story, The Natural Gemstone Company stands ready to provide detailed information and guidance so you can make an informed and confident choice.