*Radiance Level Disclaimer* At GeoPulse Minerals, we use our own internal classification system to evaluate the light performance of Mexican Fire Opals. This system is based exclusively on the intensity, stability and chromatic strength of the fire, play of colour, displayed by each specimen, as follows: Radiance Level I – Soft Glow Gentle internal light with delicate colour movement. Radiance Level II – Bright Glow Noticeable radiance with stable brightness and defined flashes. Radiance Level III – Intense Radiance Strong, vivid fire with powerful colour response from multiple angles. Radiance Level IV – Flame Radiance Top tier. Maximum intensity, highly saturated flame like play of colour and exceptional optical behaviour. This scale allows collectors to immediately understand the visual strength and rarity category of each opal we present. —————— Radiance Level I - *SOFT GLOW* Description: Emerging from the volcanic soils of Jalisco, this Mexican Cantera Fire Opal reveals an inner world illuminated by pure amber light. Unlike high radiance fire opals, this specimen carries no internal play of colour and makes no attempt to mimic the traditional flame patterns. Instead, its beauty lies in the quiet brilliance of its internal clarity, the warm chromatic glow that intensifies when backlit, and the fascinating landscape enclosed within its natural cavity. The host matrix embraces the opal gently, framing the translucent body with subtle earth toned textures that amplify the contrast of the vivid interior. When illuminated from behind, the opal transforms into a glowing lantern of orange gold, exposing delicate internal structures that appear suspended within the stone. This is a piece that speaks not through fire but through depth, transparency and the serene warmth that collectors of Mexican cantera material deeply appreciate. Specifications: Pattern and Colours: No radiance. Uniform translucent orange under light Weight: 1.24 g Weight in carats: 6.23 ct Dimensions: 16 mm × 12 mm Origin: Jalisco, Mexico Mineral: Fire Opal in Cantera Matrix Treatment: None Transparency: Translucent to semi transparent Matrix Presence: Yes Backlit Effect: Strong warm glow with illuminated internal structures Overall Character: Collector grade cantera opal with defined internal contrast Notable Points: • Warm inner glow that intensifies beautifully when illuminated from behind • Distinct internal shapes that create a natural landscape inside the opal • Strong contrast between vivid orange body and soft earth toned matrix • Highly aesthetic transparency that enhances the depth of the interior • Smooth polished window offering a clear view into the opal core • Elegant teardrop contour that displays perfectly in any direction • Exceptional backlit performance creating a golden lantern effect Collector’s Interest: Collectors of Mexican cantera opals will appreciate the clarity of the internal window, the strong backlit transformation and the pronounced contrast between matrix and opal body which together create a specimen that is visually expressive without relying on traditional fire patterns. Lapidary Interest: This opal offers potential for a refined cabochon window or for maintaining its current natural artistry, as the internal structures and backlit behaviour make it particularly suitable for a display piece rather than aggressive recutting. ————— 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