Pave Multi Color Boulder Opal (Ironstone Opal) Pendant 10.50 Ct., Platinum 950

This pendant centers on a single, opaque marquise cabochon, a 10.50 carat Australian boulder opal ironstone opal, precisely shaped to 34.30 by 8.80 by 4.80 millimeters. The decision to present the opal as a cabochon is deliberate, the convex table and gently domed profile optimized to maximize broad flash and play of color rather than faceted brilliance, preserving the stone s natural opal character and allowing intense color saturation to read uniformly across the surface. The marquise outline elongates the color bands, enabling dominant blue and green flashes to travel along the length of the gem when tilted, while occasional flashes of warmer tones reveal the multi color complexity inherent to quality boulder opal. Clarity is not applicable at magnification because the gem is evaluated at eye level, and this specimen displays an excellent polish free of surface abrasion, which is especially important for opal given its lower hardness relative to traditional faceting gems. The 4.80 millimeter thickness was selected to provide internal stability and to preserve the ironstone backing that contributes to body tone, while the overall proportions maintain a low profile to reduce catch and to protect the edges in everyday wear.

Surrounding the opal, the mounting uses approximately 1.71 carats of white natural round diamonds, all selected for uniformity and balance, with VS clarity and color graded in the F to G range to achieve a bright, near colorless halo that complements the cool tones of the opal without overpowering them. The diamonds are calibrated to tight tolerances, each measured and matched for diameter, table, and crown proportions to create an even scintillation band. The setting is executed in 18K white gold, chosen for its alloy stability and warm malleability, and finished with a high polish and rhodium plate to enhance whiteness and to provide a reflective contrast to the opal s play of color. Craftsmanship combines CAD driven modeling with detailed hand finishing. The opal saddle is milled to close tolerances to cradle the cabochon, and the diamonds are micro set with controlled bead work to minimize metal visibility while maximizing light return. Laser welding is used for joins to avoid excessive heat in the working area, and final assembly includes ultrasonic cleaning, steam polishing, and a multi point inspection to verify stone security, symmetry, and surface condition.

The Natural Gemstone Company integrates environmentally responsible sourcing and manufacturing practices into every step of this pendant s production. The boulder opal is sourced from licensed Australian operations that practice progressive land rehabilitation and responsible water management, and our procurement prioritizes miners and suppliers who commit to reclaiming overburden and restoring vegetation after extraction. Where practical, the 18K white gold used in the mounting is recycled material, reducing the need for new mining, and our diamond supply chain is restricted to suppliers who comply with the Kimberley Process and who provide chain of custody documentation. Cutting and polishing are performed at regional facilities that employ closed loop water filtration for slurry recovery, low VOC polishing compounds, and energy efficient equipment, reducing both chemical discharge and energy consumption. We also ensure fair labor practices by working with workshops that provide safe working conditions and pay living wages, and we document provenance and treatment histories so that each pendant is accompanied by a clear gem report and an eco sourcing statement. For buyers who require further verification, The Natural Gemstone Company can provide detailed sourcing documentation and laboratory reports, reflecting our commitment to transparency, technical integrity, and sustainable craftsmanship.