0.63 Ct. Alexandrite from Brazil

When you are searching for a gemstone that will end your quest for the perfect engagement ring, or when you are seeking a rare collector piece that combines rarity and everyday wearability, this alexandrite answers that need with quiet confidence. Offered by The Natural Gemstone Company, this transparent cushion shape alexandrite weighs 0.63 carat and measures 6.12 x 4.60 x 2.62 mm, a size that balances presence with practicality for many settings. Its greenish to purplish color change is the kind of natural wonder that sparks conversation and creates lasting emotional resonance, which is precisely what customers often tell us they want when they come to us. If your priority is a gem that can serve as both a statement and a daily companion, this stone stands out because it is natural, untreated, and from Brazil, an origin known for producing alexandrite with lively color dynamics.

From a gemological standpoint this alexandrite is a thoughtful choice for discerning buyers, because it brings together excellent craftsmanship and honest natural characteristics. The cushion shape, executed in a mixed brilliant cut, combines the soft curves of the cushion outline with faceting designed to maximize brilliance and scintillation. At 0.63 carat and with dimensions of 6.12 x 4.60 x 2.62 mm, it will sit elegantly in many ring heads or pendants without overwhelming the design. Clarity is graded as slightly included when evaluated at eye level, which means you will notice natural inclusions under close inspection, but they do not obscure the gem or undermine its overall beauty. The intense color intensity ensures that the green and purple tones read vividly to the eye, and the excellent polish enhances surface reflection and tactile quality. Importantly, there is no enhancement applied to this gem, so what you are buying is wholly natural and untreated, a quality that many collectors and brides value deeply.

How this alexandrite performs under different lighting is where its personality truly reveals itself, and where it will meet the expectations of anyone who hopes for a gem that surprises and delights. In strong daylight or in open shade, the stone leans toward a lively green, with cool undertones and crisp faceting flashes that emphasize its mixed brilliant cut. Natural daylight accentuates the green hues and produces bright, clean sparkle that will draw appreciative glances. Under incandescent or warm candlelight the alexandrite shifts toward the purplish side of its range, the saturation deepening into a more romantic, velvety purple, and the faceting catching warm flashes that seem to come from within the stone. In typical indoor lighting such as warm LED or tungsten the gem will often show an intermediate tone where both green and purple can be seen depending on the angle, producing a dynamic color play that is elegant rather than overstated. Fluorescent lighting can accentuate cooler tones and bring out subtle blue or teal hints in the green phase, while very low light will emphasize the gem's depth and the way its polished facets play with what little light is present, producing a gentle shimmer and a sense of mystery. Because of the excellent polish and the mixed brilliant cut, the stone also shows lively facet to facet reflections, giving it robust brilliance and scintillation in motion, so it will look animated on a hand as the wearer moves.

If your need is for a romantic engagement ring that will be treasured and worn daily, this alexandrite is an ideal match, and if you are a collector seeking a natural, unenhanced color change specimen from a reputable source, this gem satisfies those criteria as well. Its 0.63 carat weight and cushion shape lend themselves to classic solitaire settings, haloed vintage styles, or modern bezel mounts that protect the girdle while allowing color change to be appreciated from many angles. For collectors it offers a Brazilian origin and a natural state without treatment, which preserves provenance and investment appeal. At The Natural Gemstone Company we make it easy to envision this stone in your jewelry, and we are happy to discuss setting options that will maximize the color shift and protect the gem for daily wear. When you want a piece that closes the search and becomes the focal point of an engagement story or a curated collection, this alexandrite stands ready to take that role, offering authentic natural color change, skilled cutting, and the kind of durability and charm that turns a purchase into an heirloom.