3.88 Ct. Greenish Blue Paraiba Tourmaline from Brazil

This paraiba tourmaline presents as a transparent, oval shaped gemstone weighing 3.88 carat, with precise dimensions of 12.60 by 8.66 by 5.53 millimeters. The body color is a greenish blue exhibiting a vivid, electric, neon intensity that is characteristic of fine Brazilian paraiba material. The cutting style is a mixed brilliant cut, and the piece shows excellent polish across all facets. Clarity has been evaluated as slightly included at eye level, with internal features that do not compromise the gem's overall visual appeal. The stone has undergone controlled heat treatment as an enhancement, and its origin is Brazil. These core attributes define the gem as a notable example of exotic tourmaline material, suitable for jewelry settings that emphasize both color saturation and optical performance.

The mixed brilliant cut has been executed to optimize the paraiba tourmaline's response to light, combining the light concentrating properties of brilliant faceting on the crown with carefully proportioned pavilion facets that manage internal reflection and return. The crown facets collect incident light and split it into multiple paths, while the pavilion planes act to redirect that light back through the table and upper facets, producing sustained brightness and lively scintillation. The oval outline further enhances the light dynamics by elongating the visual field of color, encouraging a ribbon of saturated hue across the length of the gem that shifts subtly as the stone or the observer moves. Facet junctions and angles have been refined to limit light leakage, and the excellent polish reduces surface scatter so that more photons are captured and reharmonized into perceivable brilliance. In practice this means the mixed brilliant execution reinforces both the neon color and the apparent depth of the stone, creating an effect where vivid color and internal sparkle coexist without one overwhelming the other.

From a clarity and practical perspective, the slightly included grade assessed at eye level indicates the presence of internal characteristics that are visible under close inspection, yet positioned and balanced in a manner that preserves the gem's overall performance. The mixed brilliant pattern helps to diffuse and integrate these features into the play of light, often rendering them less conspicuous to casual viewing, especially when the gem is set with a bezel or partial bezel that can mask edge inclusions. The dimensions provide a comfortable size for center stone settings, while the 3.88 carat weight retains substantial presence without becoming unwieldy. The heat treatment applied is consistent with standard enhancement practices for paraiba tourmaline, producing stable color improvement when performed under controlled conditions. The excellent polish ensures that the surface mirrors incoming light efficiently, and contributes to clean facet reflections that emphasize the electric color. The Natural Gemstone Company offers this specimen with full disclosure of its characteristics, and the combination of cut, color, clarity, and finish makes it a technically refined example for collectors and designers seeking a vivid Brazilian paraiba tourmaline with optimized optical performance.