Description: Emerging from the mineral rich veins of Pakistan, this Herkimer Diamond stands as a luminous expression of nature’s precision. Its crystal architecture reveals bright clarity windows intersected by delicate internal channels, each one capturing the journey of light through its structure. Under neutral light the specimen shows the elegance characteristic of true Herkimer formations, with sharp faces and a powerful internal lustre. Yet it is under ultraviolet light that the crystal unveils its most extraordinary secret: rare golden hydrocarbon fluorescence, glowing in warm tones of orange and amber, a phenomenon far less common than the classic petroleum blue associated with this material. This radiant behaviour transforms the specimen into a piece of natural artistry, one capable of shifting personality with the simple touch of UV illumination. Collectors of reactive minerals will immediately recognise the rarity and aesthetic appeal of such tones, and the substantial weight of 6.75 carats amplifies its presence even further. A singular opportunity to acquire a crystal that bridges clarity, architecture and the quiet alchemy of hidden hydrocarbon inclusions.. Specifications: • Weight: 1.35 g • Weight in carats: 6.75 ct • Dimensions: 19 × 17 × 8 mm • Origin: Waziristan, Pakistan • Mineral: • Variety: Biterminated Herkimer diamond • Formation: Hydrothermal growth • Terminations: Fully double terminated • Transparency: High with internal inclusions • Lustre: Vitreous • UV reaction: Golden internal filaments under UV light • Colours: Colourless in daylight; golden orange glow under UV • Treatment: None • Number of pieces: 1 Notable Points: • 6.75 ct hydrocarbon bearing Herkimer with strong presence • Double terminated crystal with sharp natural geometry • Clear to slightly smoky body with attractive light reflections • Rare golden UV fluorescence from internal hydrocarbon films • Very good transparency for a rough Herkimer of this size • Excellent display piece that stands out immediately in a tray • Authentic Herkimer type quartz from Waziristan, Pakistan Collector’s Interest: A remarkable Herkimer Diamond of substantial size and rare optical behaviour. Golden hydrocarbon fluorescence is considerably less common than the classic petroleum blue, making this crystal a desirable acquisition for collectors who seek the most unusual UV reactive quartzes. Its internal structure, clarity windows and natural terminations enhance its overall presence. Lapidary Interest: Although primarily suited for a collector’s cabinet, the crystal offers interesting possibilities for lapidary work, particularly for those who specialise in preserving natural terminations and internal optical traits. The golden UV reaction adds a unique layer for creative jewellers. ————— Photography and transparency: All photos were taken under controlled light conditions, carefully selected to reproduce the most accurate natural colour of each specimen. No filters, colour enhancement, or artificial saturation were applied. The lighting setup uses a calibrated 5500K light source, which replicates neutral daylight and reveals the true tones and clarity of the mineral. Under weaker or more yellow indoor lighting, colours may appear slightly different, which is normal and expected. The purpose of this setup is to present each specimen exactly as it appears in balanced natural daylight, allowing buyers to appreciate its authentic colour and lustre without distortion. Identification and ethics: All specimens offered are guaranteed natural and as described. Their origin and mineral identification are provided with the most accurate and reliable information available. Every effort is made to ensure that each piece is presented with full transparency, avoiding any misleading details regarding its nature, treatment, or provenance. Shipping and handling: Orders are carefully prepared, with each stone individually protected and placed in a secure rigid box to ensure safe delivery. Shipments are made within 1 to 3 business days after payment confirmation, always with a tracking number provided to the buyer. Each order is handled with professional care from selection to dispatch, ensuring a smooth and trustworthy process. 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 a priority. In the event of any issue, such as loss, damage, or discrepancy, please contact us immediately through Catawiki’s messaging system. We will always find a fair and suitable solution, including refund, replacement, or other commercial arrangements whenever justified. Appreciation and commitment: We sincerely thank you for your trust and preference. Our goal is to continuously bring you some of the most beautiful, unique, and exceptional mineral specimens from around the world. Each piece is carefully selected for its quality and character, ensuring that every purchase meets the highest standards. Your satisfaction and confidence are our top priorities, and we will always strive to exceed your expectations with every order. With gratitude, GemPulse Minerals