5.01 Ct. Ruby from Mozambique

This GRS certified Vivid Red 5.01 carat cushion shape red ruby from The Natural Ruby Company represents a rare combination of size, color and clarity that educated buyers seek, and serves as a textbook example of why origin, grading and treatment matter. This stone measures 12.57 by 8.74 by 4.24 mm, and it has been fashioned with a mixed brilliant cut to balance a strong table face with scintillating pavilion facets. The gem is transparent, evaluated as eye clean at normal viewing distance, and displays vivid color intensity with an excellent polish that maximizes light return. The GRS certificate confirms the ruby as natural in origin from Mozambique, and it notes a standard heat treatment enhancement, a widely accepted and stable treatment that improves color saturation and removes microscopic silk to enhance apparent clarity. For collectors and fine jewelry buyers, the combination of over 5 carats, vivid red saturation, eye clean clarity and GRS certification places this ruby in a high tier of market desirability, and The Natural Ruby Company stands behind its provenance and grading to ensure confidence in both aesthetic and investment value.

The narrative of how this ruby came to be begins millions of years ago deep within the crust beneath what is now Mozambique, where aluminum rich host rocks experienced intense heat and pressure during regional metamorphism. Trace amounts of chromium substituted into the crystal lattice of corundum as it crystallized, producing the signature red hue that defines ruby. Over geological time frames, slow cooling allowed well formed crystals to grow, and later tectonic uplift and erosion liberated these crystals from their parent rocks, concentrating some in alluvial deposits and exposing others in situ for modern discovery. Natural heat treatment, whether occurring in situ or applied in a controlled fashion by gem professionals, can diminish microscopic rutile inclusions and enhance transparency and color, which is the recorded treatment for this gem. When set, this cushion shaped mixed brilliant cut ruby will reflect its geological journey through a depth of color and resilience, making it a compelling choice for collectors, connoisseurs and those seeking a meaningful heirloom from The Natural Ruby Company.