Description: Like a drop of wild raspberry nectar suspended in glass at the exact moment of crystallisation, this refined Watermelon Tourmaline slice reveals a luminous central core embraced by a delicately structured halo of evolving colour. Unlike more compact or opaque examples, this specimen displays a remarkable sense of internal openness, allowing light to travel through its structure with exceptional clarity. At its centre lies a vivid reddish pink core, radiant and expressive, with a chromatic intensity that shifts between deep raspberry and bright pink depending on illumination. The nucleus is clearly defined yet slightly more open in texture, giving it a glowing, almost liquid appearance rather than a dense, closed form. This subtle internal diffusion enhances its visual energy, particularly under transmitted light. Encircling the core is a distinctly visible pale halo, soft and milky, acting as a natural boundary between the intense interior and the outer zones. This transitional layer is clean, continuous and highly legible, creating a strong visual contrast that immediately draws the eye toward the centre. It reflects a momentary change in growth conditions, forming a natural separation that enhances both depth and structural clarity. Beyond this halo, the crystal transitions into a broader external zone characterised by translucent pink tones with gentle greyish to slightly smoky undertones. Unlike heavier or more saturated outer zones, this region remains relatively light and open, allowing illumination to pass through and interact with the inner structure. This gives the entire slice a softer, more luminous presence, rather than a compact or shadowed appearance. Under transmitted light, the transformation is immediate and striking. The central core ignites into a vivid, almost electric pink, while the surrounding halo becomes more ethereal and the outer zones recede, enhancing the perception of depth and dimensional layering. This dynamic optical response gives the specimen a dual identity, calm and refined under ambient light, yet vibrant and energetic when backlit. The slice preserves natural lateral features from the original crystal, including fine longitudinal striations along the sides, confirming its prismatic origin. Internally, natural inclusions and growth features are present, subtle yet visible, reinforcing its authenticity without disrupting the overall visual balance. Material from Minas Gerais is renowned for producing some of the most desirable watermelon tourmalines, yet pieces displaying this combination of luminous core, clean transitional halo and open translucent structure remain distinctly uncommon. This is not simply a colour zoned crystal. It is a refined interplay between light, structure and chemistry, preserved with clarity and elegance. Specifications: • Weight: 0.65 g • Weight in carats: 3.25 ct • Dimensions: 10 x 9 x 3 mm • Origin: Minas Gerais, Brazil • Mineral species: Tourmaline • Variety: Watermelon Tourmaline • Crystal system: Trigonal • Form: Natural crystal slice • Core structure: Single reddish pink core • Colour zoning: Multistage concentric zoning • Colour sequence: Reddish pink core, pale translucent halo, light translucent pink outer zone with subtle smoky undertones • Transparency: Translucent to locally transparent • Lustre: Vitreous • Treatment: None • Condition: Natural, intact slice Notable Points: • Luminous reddish pink core with strong chromatic presence • Slightly open internal structure enhancing light interaction • Clean and continuous pale transitional halo • High contrast zoning with excellent visual readability • Translucent outer zone allowing light penetration • Softer external tones creating a refined overall balance • Strong optical response under transmitted light • Natural internal inclusions consistent with unaltered formation • Preserved lateral striations confirming original crystal habit • Balanced proportions with strong visual symmetry • Minas Gerais origin, classic locality for high quality tourmaline • Highly photogenic with dynamic light behaviour Collector’s Interest: This specimen stands out through its balance between intensity and transparency. While many watermelon tourmalines rely on dense saturation, this piece distinguishes itself through its luminous core and open structure, allowing light to become an active component of its visual expression. The clearly defined halo combined with the softer outer zone creates a refined and elegant zoning sequence, appealing to collectors who value both aesthetic clarity and mineralogical structure. Lapidary Potential: Although the material presents attractive internal colour, any cutting would irreversibly destroy the zoning structure and the delicate balance between core, halo and outer zone. Its highest value lies in its preservation as a natural slice, where its full optical and structural character remains intact ——————— 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 photos were taken under controlled light conditions, carefully selected to reproduce the most accurate natural color of each specimen. No filters, color enhancement, or artificial saturation were applied. The lighting setup is used exclusively to represent the piece as it appears under neutral daylight, ensuring that buyers can appreciate its true tones and luster 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. 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