**Complimentary Specimens** As a gesture of appreciation, every winning lot above €50 will include one extra mineral, added entirely free of charge. —————— Description: As if crystallised from molten saffron at the very heart of the Earth, this natural Fancy Vivid Yellow diamond radiates with a concentrated warmth that feels organic rather than metallic. Its colour evokes the richness of ripe golden pollen suspended in summer air — dense, luminous and saturated with life. There is nothing pale or hesitant in its tone. The yellow is direct, vivid and unwavering, carrying a chromatic intensity that immediately commands attention. The stone displays a unique natural rounded shape, formed entirely through geological forces. Its silhouette is softly sculpted, with subtly curved contours and an overall balanced mass that feels harmonious from every angle. The external surface is richly textured, revealing natural growth relief that resembles flowing mineral currents frozen in time. Rather than sharp planar faces, the diamond presents a cohesive, gently domed architecture with layered micro structures that wrap around the body in organic continuity. Light interacts dynamically with this textured surface. Across the natural relief, countless micro reflective points generate crisp flashes, producing an unmistakable adamantine response even without polishing. The reflections are lively yet controlled, travelling across the rounded elevations and recessed areas in a way that enhances depth rather than flattening it. Under neutral lighting, the diamond maintains a strong vivid yellow identity with excellent saturation. When exposed to more direct or focused illumination, the body ignites internally, amplifying brightness and revealing a deeper chromatic density. The translucency allows light to enter and diffuse through the interior, creating a soft internal glow that reinforces the vivid classification while preserving structural integrity. Recovered from the alluvial deposits of Lunda Norte, Angola, this diamond carries the geological heritage of one of the world’s most important coloured diamond regions. Over immense geological timescales, ancient river systems naturally selected and preserved crystals capable of maintaining stable and intense colour expression. This specimen remains entirely natural and untreated, with its rounded growth form intact and undisturbed. Its rarity lies not only in its Fancy Vivid Yellow colour but in its authentic natural architecture. The combination of saturated chromatic presence, organic rounded morphology and strong adamantine lustre gives this diamond a distinctive personality that feels both powerful and refined. Specifications: • Weight: 0.05 g • Weight in carats: 0.25 ct • Dimensions: 3 × 3 × 3 mm • Origin: Lunda Norte, Angola • Gem material: Natural diamond • Crystal form: Natural rounded rough crystal • Shape character: Unique natural rounded growth • Colour: Fancy Vivid Yellow • Colour distribution: Even and highly saturated • Transparency: Translucent • Lustre: Adamantine • Surface features: Natural growth texture with layered micro relief • Condition: Natural, unpolished, untreated Notable Points: • Fancy Vivid Yellow classification with strong chromatic authority The body colour exhibits high saturation and intensity, consistent with vivid grading standards. The yellow is neither diluted nor brownish, maintaining clarity and visual strength across all observed angles. • Exceptionally even colour distribution throughout the crystal mass The chromatic concentration remains cohesive from surface to core, without abrupt zoning, patchiness or tonal fragmentation, reinforcing visual stability and classification credibility. • Unique natural rounded morphology shaped entirely by geological forces The crystal presents a softly contoured silhouette with balanced mass distribution, free from angular dominance, preserving an organic architectural identity formed deep within the Earth. • Rich natural surface texture with layered micro-relief growth patterns The external structure displays tightly packed micro-elevations and subtle undulating growth features, creating a continuous, cohesive surface rather than fragmented granulation. • Strong adamantine lustre expressed across natural micro-reflective planes Despite the absence of polishing, the diamond produces crisp, high-intensity flashes across elevated ridges and subtle relief points, confirming the inherent optical power of the material. • Dynamic internal glow under directional illumination The translucency allows controlled light penetration, generating a luminous internal response that enhances depth and reinforces the vivid yellow intensity without creating opacity. • Compact yet visually commanding presence At 0.25 ct, the specimen projects a chromatic and structural presence that feels proportionally larger due to colour concentration and surface activity. • Stable chromatic behaviour across lighting conditions The yellow remains expressive under neutral, diffused and direct light, demonstrating consistent saturation rather than reactive colour fluctuation. • Authentic Angolan alluvial provenance from Lunda Norte Originating from one of the most historically important coloured diamond regions, the specimen carries geological credibility and regional significance within the global diamond landscape. • Untreated and fully natural rough state No cutting, enhancement or artificial intervention has altered its morphology, preserving both structural integrity and scientific value. • Balanced structural cohesion without surface degradation The surface relief is textured yet intact, with no disruptive fractures compromising overall form stability. • High specimen value as a morphological study piece Beyond its colour category, the stone offers educational and geological relevance due to its preserved natural growth character and surface architecture Collector’s Interest: Fancy Vivid Yellow diamonds represent one of the most desirable natural colour categories. Specimens that preserve a distinctive rounded natural morphology add an additional layer of collecting appeal, particularly for those focused on authentic crystal growth expressions rather than symmetry driven forms. This diamond offers a compelling balance between chromatic strength, organic architecture and geological credibility, making it a refined addition to advanced coloured diamond collections. Lapidary Potential: The vivid saturation suggests that colour strength would remain expressive even in a very small finished stone. However, the preserved natural rounded morphology and textured surface provide intrinsic specimen value in their untouched state. Any intervention would alter the unique growth architecture that currently defines its identity, making preservation a strong consideration for collectors who prioritise natural formation over transformation. ——————- Shipping and Handling: All orders are shipped by Portuguese National Post. • Dispatch time: within 1 to 3 business days after payment confirmation to Catawiki • Transit time with CTT service: between 5 to 7 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