Description: Like a fragment of deep polar ice suspended in crystalline form, this natural fancy blue diamond displays a colour of remarkable purity and intensity. The blue is clean, cold, and saturated, recalling the inner mass of an iceberg where light penetrates dense glacial ice, revealing an almost electric blue tone untouched by green or secondary hues. It is a colour that feels geological and elemental, evoking frozen depths rather than surface waters. When illuminated from behind with direct light, the stone undergoes a striking transformation. The blue intensifies dramatically, becoming brighter and more concentrated, as if the crystal were lit from within. This backlighting effect reveals a vivid internal glow, amplifying transparency and depth while preserving the clarity of the hue. The result is a luminous, icy blue radiance that strongly recalls polar ice and submerged glacial formations, where colour deepens rather than fades under light. Recovered from the alluvial deposits of Lunda Norte, Angola, this diamond carries the legacy of one of the most important diamond producing regions in Africa. Transported and shaped by ancient river systems, alluvial diamonds from this area are known for preserving natural colour expression and structural authenticity. Their geological journey often results in stones whose chromatic behaviour remains expressive even in small, untreated crystals. The crystal remains entirely natural, presenting a compact rough morphology with irregular planes and softly rounded contours formed solely by geological forces. Natural growth textures and crystalline relief scatter light across raw surfaces, producing subtle flashes rather than polished brilliance. Even without any cutting or treatment, the adamantine lustre is clearly visible, reinforcing the noble character of diamond in its most honest state. This piece stands as a quiet but powerful expression of colour and origin. Untreated and unaltered, it communicates value through purity of hue, behaviour under light, and geological authenticity. It is a diamond where colour speaks first, shaped not by design, but by pressure, time, and the frozen language of the Earth itself. Specifications: • Weight: 0.11 g • Weight in carats: 0.55 ct • Dimensions: 4 x 6 x 4.5 mm • Origin: Lunda Norte, Angola • Gem material: Natural diamond • Crystal form: Natural rough crystal with compact, irregular morphology • Colour: Fancy blue • Colour distribution: Even and well concentrated • Transparency: Translucent • Lustre: Adamantine • Surface features: Natural growth textures and raw crystalline relief • Condition: Natural, unpolished Notable Points: • Intense fancy blue colour with intense saturation • Colour evokes deep polar ice and the interior of icebergs • Strong chromatic response under direct backlighting • Blue intensifies noticeably when illuminated from behind • Clean and concentrated hue • Natural alluvial character typical of Lunda Norte diamonds • Untouched crystal morphology shaped solely by geological processes • Authentic surface textures with no artificial alteration • Adamantine lustre visible in raw state • Rare blue colour preserved in original rough form Collector’s Interest: Natural fancy blue diamonds are among the most sought after coloured diamonds, particularly when the colour is pure and free from secondary hues. This piece offers collectors a genuine example of Angolan alluvial diamond heritage, combining intense colour, natural form, and expressive behaviour under light. Its untouched state and polar blue tonality make it especially desirable for collectors focused on rare natural blues with strong visual and geological identity. Lapidary Potential: The strong blue saturation and its pronounced intensification under backlighting suggest excellent colour retention potential if carefully cut. The crystal’s natural form allows observation of growth orientation, offering valuable insight for colour focused lapidary planning. Whether preserved as a natural specimen or considered for selective cutting, this diamond presents outstanding lapidary potential driven by colour purity, light behaviour, and authenticity rather than size alone. ——————- 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