1.63 Ct. Ruby from Mozambique

This GIA certified Mozambique ruby from The Natural Ruby Company is a technically refined example of classic corundum craftsmanship, weighing 1.63 carat and measuring 7.05 by 6.78 by 3.98 millimeters. The gem is transparent, with a cushion outline executed in a mixed brilliant faceting style, combining a brilliant crown geometry with a modified pavilion to balance color saturation and light return. The proportions yield a depth of approximately 57.6 percent, a dimension that promotes strong face up color without sacrificing scintillation. The table to overall spread relationship has been optimized by the cutter to present a vivid red face up at normal viewing distances, while the mixed brilliant facets create a lattice of bright flashes and controlled dark contrast zones, enhancing the perception of both volume and color intensity. The polish is graded excellent, ensuring unobstructed light transmission across facet junctions, and the clarity is eye clean under typical loupe free viewing, supporting unimpeded brilliance and a clean, velvety red appearance when the stone is set.

From a material science perspective this ruby exhibits the hallmark optical properties of gem quality corundum, including a refractive index in the range expected for ruby and a subtle pleochroism that gives varying red to slightly purplish red tones depending on orientation. The stone is heat treated, a stable and well established enhancement, applied to intensify hue and reduce the visibility of fine inclusions, without altering the structural integrity of the crystal. Heat treatment in Mozambique material commonly redistributes trace elements to produce a more uniform vivid color, and in this specimen the result is a saturated, pure red with minimal brown or orange modifiers. The balance between tone and saturation in this piece places it in a vivid color intensity class, delivering the type of visual impact historically sought after for court jewels and high jewelry, while the heat treatment is fully disclosed and documented on the GIA report for provenance and valuation clarity.

Comparatively, this 1.63 carat Mozambique ruby can be contrasted with some of the most storied rubies in history, such as the famed pigeon blood Burmese examples that have set auction records. While those historic stones often achieve fame through exceptional size, provenance, or unique color zoning, this ruby deserves consideration for its face up equivalence in color intensity and optical performance. The cushion mixed brilliant cut is a modern interpretation of the cuts used on classical Mughal era cabochons and table cuts, adapted to maximize scintillation and color in a faceted format. Where historic royal rubies were prized for their impassioned hue and associative lineage, this stone offers a contemporary advantage through technical precision, documented certification, and predictable performance in jewelry applications. For collectors who value historical reference points, the vivid, clean appearance of this gem evokes the visual characteristics of many famous rubies, while its certified origin and treatment disclosure place it squarely in the transparent market of modern high quality rubies.

For practical use and investment considerations this ruby is exceptionally well suited to a variety of settings, including prong mounted solitaire rings, halo settings that complement the vivid red with white brilliance, or bespoke commissions where the cutter optimized proportions will sit attractively in a bezel that protects the girdle while allowing the crown facets to disperse light. The eye clean clarity level means minimal masking is required when mounted, and the excellent polish ensures a sharp table and crisp facet junctions for maximum return of light. The Natural Ruby Company supplies this piece with GIA documentation, and the combination of Mozambique origin, certified grading, and a purpose driven mixed brilliant cut makes this ruby a compelling choice for connoisseurs who appreciate technical gemology and historical parallels in a modern, trade transparent package.