Opportunities to acquire fine Montebrasite are uncommon. Opportunities to acquire a parcel such as this are considerably rarer.
As one of the most elusive collector gemstones in the market, Montebrasite is seldom available in quantity, and assembling a group displaying this level of quality across multiple colors requires years of careful sourcing.
This mixed lot consists of 45 untreated Montebrasite gemstones from Brazil with a combined weight of 82.79 carats. The parcel includes a remarkable range of naturally occurring colors, including White, Baby Yellow, Blue Green, Vanadian Green, and Yellowish Green, represented across a variety of shapes and sizes. Rather than a matched set, this is a collector's assortment that showcases the diversity and beauty of one of the rarest gem species available.
Material of this quality is exceptionally difficult to obtain, and parcels of this scale are encountered only occasionally. For collectors of rare gemstones, the appeal lies not only in the individual stones, but in the opportunity to own a representative collection of fine Montebrasite in a single acquisition.
It is rare in a way that matters, not in a way that is marketed.
Montebrasite belongs to the phosphate mineral class, amblygonite group, and forms a complete solid-solution series with amblygonite through continuous substitution of OH⁻ (hydroxyl) and F⁻ (fluorine) in the same structural site within the crystal lattice. Learn more about Montebrasite.
Discover more natural Montebrasite gemstones in our collection.
Frequently Asked Questions
Is this montebrasite natural?
Yes, this montebrasite is a 100% natural gemstone that has been carefully sourced and verified for authenticity. At Gempiece, we never sell lab-created or man-made substitutes — all our gemstones are earth-mined natural stones.
Do you provide certification?
Yes, many of our gemstones come with certification. For others, certification can be arranged upon request at the buyer’s cost. You can select your preferred laboratory from the product information section. We offer certification from standard labs in Bangkok to premium labs such as GIA, GRS, AIGS, and Lotus, with costs typically ranging from $20 to $400 depending on the lab.
Does it retain value?
High-quality gemstones can retain value over time depending on rarity, demand, and overall quality.
Does this montebrasite have any zoning or color variation?
Some natural gemstones may show slight zoning or color variation, which is a natural characteristic of their formation. Any such features can be clearly observed in the images and videos of the exact stone.
Do you take custom orders such as matched pairs or calibrated sizes?
Yes, we take custom orders, including matched pairs, calibrated sizes, and other specific requirements. Since we work directly with rough material and handle cutting in-house, we can accommodate custom requests depending on availability and feasibility. You can contact us with your requirements, and we will guide you through the available options and timelines.
