DESCRIPTION: Like a fragment of polished bronze crystallised by nature, this natural rough diamond immediately captivates through its exceptional crystalline lustre. Even in its completely unpolished state, the surface produces remarkably bright and sharp reflections, giving the brown crystal an almost polished visual intensity and revealing the unmistakable adamantine character of high quality natural diamond. Across several natural faces, clearly defined trigons remain preserved as important crystallographic signatures. These triangular dissolution features record part of the crystal’s natural evolution, creating small geometric depressions and growth markings that contrast beautifully with the extraordinary brilliance of the surrounding surfaces. The colour ranges through rich brown and cognac tones, accompanied by warmer amber nuances under stronger illumination. Light moving across the crystal produces subtle tonal transitions, with some areas appearing deeper and more concentrated while others become warmer and more luminous. Its morphology is compact and naturally rounded, forming a balanced three dimensional rough crystal. Rather than relying on sharp external geometry, the specimen combines softly developed natural contours with numerous minute reflective planes, producing an unusually lively surface for a diamond preserved entirely in its rough state. One of its most striking qualities is the interaction between texture and lustre. Fine crystalline growth relief, trigons and microscopic natural faces behave almost like innumerable tiny mirrors, creating concentrated flashes of adamantine brilliance across the specimen. This exceptional reflective character gives the diamond a remarkably crystalline and energetic appearance from multiple viewing angles. Originating from the Marange Diamond Fields, Manicaland Province, Zimbabwe, this untreated natural rough diamond combines warm cognac brown colour, highly visible crystallographic features and exceptional natural lustre. Its combination of trigons, compact morphology and unusually brilliant crystalline surfaces gives the specimen a particularly strong identity as both a collector’s diamond and a preserved natural crystal. SPECIFICATIONS: • Weight: 0.05 g • Weight in carats: 0.25 ct • Dimensions: 3 × 3 × 3 mm • Origin: Marange Diamond Fields, Manicaland Province, Zimbabwe • Gem material: Natural Diamond • Crystal system: Cubic • Form: Natural rough diamond • Morphology: Compact rounded irregular crystal • Colour: Brown to cognac with warm amber undertones • Colour distribution: Naturally variable with subtle tonal concentration • Transparency: Translucent • Lustre: Exceptional crystalline adamantine lustre • Surface features: Well defined trigons, fine crystalline growth relief and multiple reflective natural micro faces • Internal features: Natural inclusions and structural irregularities • Treatment: None • Condition: Natural, unpolished and untreated NOTABLE POINTS: • Exceptional Crystalline Lustre The natural rough surface produces remarkably bright adamantine reflections, giving the specimen an unusually brilliant appearance without polishing. • Clearly Defined Trigons Natural triangular dissolution features remain preserved across several surfaces and record part of the diamond’s crystallographic evolution. • Rich Cognac Brown Colour Warm brown tones are enhanced by subtle amber nuances that become particularly expressive under directed illumination. • Highly Reflective Natural Surface Numerous microscopic faces interact with the light and generate concentrated flashes across the crystal. • Compact Three Dimensional Morphology The naturally rounded form gives the diamond a balanced and visually cohesive appearance from multiple orientations. • Natural Crystalline Texture Fine growth relief remains beautifully preserved and contributes significantly to the stone’s exceptional surface character. • Strong Adamantine Character The intensity and sharpness of the reflections immediately reveal the characteristic optical personality associated with diamond. • Preserved Natural Growth History Trigons, surface relief and irregularities remain untouched by cutting or polishing. • Completely Natural Rough State The specimen has undergone no polishing, cutting or treatment, preserving its original crystalline architecture. • Marange Provenance Originates from the internationally recognised Marange Diamond Fields of Manicaland Province, Zimbabwe. COLLECTOR’S INTEREST: This specimen is particularly appealing because its visual strength does not depend solely on colour or morphology. Its exceptional natural crystalline lustre gives the rough diamond an unusually bright and refined presence, while the preserved trigons provide direct mineralogical interest and a visible record of natural dissolution processes. The combination of rich cognac brown colour, highly reflective natural surfaces and preserved crystallographic features gives the diamond a distinctive character. For collectors of natural rough diamonds, it offers both strong visual impact and genuine geological information within a compact, completely unaltered crystal. LAPIDARY POTENTIAL: Although technically suitable for consideration as lapidary material, cutting or polishing would permanently remove the trigons and much of the exceptional natural surface architecture that define this specimen. Its strongest value lies in preservation as a complete natural rough diamond, where its crystalline lustre, colour and crystallographic features can all be appreciated together. ——————- Shipping and Handling: All orders are shipped by Portuguese National Post and UPS • Dispatch time: within 1 to 3 business days after payment confirmation to Catawiki • Transit time service: between 2 to 5 business days within europe and worldwide, depending on destination national post. • A tracking number is always provided Photography and transparency: All photographs are taken under controlled lighting conditions using a macro lens, carefully selected to present each specimen as accurately as possible. No filters, colour enhancement, or artificial saturation are applied. The lighting setup uses a calibrated 5500K light source, replicating neutral daylight to reveal natural tones, surface features, and internal characteristics. Under warmer or weaker indoor lighting, colours may appear slightly different, which is normal. The purpose of this photographic process is documentation and representation, not visual enhancement. Images are intended to reflect the specimen faithfully as it appears under balanced natural light conditions. Identification and ethics: All specimens offered are natural and described to the best of our knowledge, based on direct sourcing, professional experience, and information provided by trusted suppliers working at the origin. Every effort is made to ensure transparency and accuracy regarding identification, locality, and general characteristics, avoiding misleading statements about treatment, provenance, or nature. Customs and import taxes: Any customs duties, import fees, or local taxes applied by the destination country are entirely the responsibility of the winning bidder. These charges are not included in the auction price or shipping cost and are determined by the buyer’s local authorities. Guarantee and resolution: Customer satisfaction is important. In the unlikely event of an issue such as loss, damage, or discrepancy, please contact us promptly through Catawiki’s messaging system. Each case is handled individually and fairly, with appropriate solutions offered when justified. Appreciation and commitment: We sincerely thank you for your trust. Our work focuses on careful selection, accurate representation, and respectful presentation of mineral specimens with character and interest. Each piece is chosen for its individual qualities rather than speculative or financial considerations. We aim to provide a transparent, reliable, and consistent experience for collectors at all levels. With gratitude, GemPulse Minerals