9.90 Ct. Yellow Quartz from Madagascar

This transparent yellow quartz, presented by The Natural Gemstone Company, is a finely balanced specimen that complements a high end gemstone collection. Weighing 9.90 carats, the gem has been fashioned into a cushion shape that preserves substantial visual mass while offering versatile design potential for bespoke settings. The stone originates from Madagascar, a source known for producing quartz with notable clarity and color stability, and it has not undergone any enhancement, which underscores its natural character. The combination of meaningful carat weight, classic cushion proportions, and natural provenance makes this piece appropriate for collectors who prioritize documented origin and untreated material.

The gem measures 13.56 x 13.00 x 8.23 mm, and it has been cut with a mixed brilliant arrangement, an approach that combines step and brilliant faceting to balance internal light return and table brightness. The polish is graded excellent, which contributes to crisp facet junctions and minimal surface diffusion of light, enhancing the perceived transparency. Clarity has been evaluated at eye level as eye clean, indicating that no inclusions are apparent without magnification, a quality that is particularly desirable in quartz of this size. The stone is transparent throughout, permitting strong light penetration and a lively visual response across the crown and pavilion facets.

The color presents as an intense yellow, with saturation that reads as vivid without crossing into artificial or overly dark territory. Under standard viewing conditions the hue is uniform across the table and pavilion facets, and the mixed brilliant cut preserves color distribution while introducing scintillation. This balance of hue, saturation, and cut allows the gem to perform well in ring or pendant applications where both surface brilliance and body color are important. Design-wise the cushion outline and modest depth facilitate protective bezel or prong settings, and the eye clean clarity permits open profile designs that showcase the table and crown faceting to full effect.

From a collection perspective the combination of natural origin, untreated status, and professional cutting makes this yellow quartz a sound addition for connoisseurs who value natural material and clean presentation. The Madagascar provenance provides a geologic context that is routinely documented for high quality quartz, and the absence of enhancement simplifies conservation and valuation considerations. For handling we recommend routine cleaning with a soft brush and mild detergent followed by gentle drying, and avoidance of prolonged exposure to extreme heat or harsh chemicals to preserve polish and color. The Natural Gemstone Company supports transparent disclosure of gem specifications, and this yellow quartz is accompanied by our detailed description of weight, dimensions, cut, clarity grade, color intensity, polish, enhancement status, and origin, suitable for inclusion in a curated high end collection.