5.81 Ct. Cabochon Tourmaline from Mozambique

One beautiful translucent green tourmaline offered by The Natural Gemstone Company weighs 5.81 carats, with an oval outline and precise dimensions of 11.99 x 9.93 x 5.48 mm, presented as a classic cabochon cut. The cabochon finish emphasizes the stone's internal glow and smooth domed face, and it exhibits intense color intensity with a lively green saturation. Clarity is assessed as very slightly included when evaluated at eye level, indicating minor internal features that do not significantly detract from the gem's overall appearance but do provide natural character. The polish is excellent, producing a high surface luster that complements the stone's translucency, and importantly this tourmaline has undergone no enhancement, offering a fully natural gem from Mozambique. These objective attributes, compiled to industry standards, underpin the gemological profile for collectors and professionals seeking a natural, untreated specimen.

From a gemological perspective, this tourmaline's combination of intense color and very slight inclusions is highly desirable, particularly in a cabochon where color and body tone are prized over faceted brilliance. Tourmaline colors arise from trace element chemistry, with green hues commonly influenced by iron and in some localities by chromium or vanadium, and Mozambique is a recognized source for vibrant tourmalines that display excellent saturation and clean tone. The very slightly included grade indicates that inclusions are present but minor at normal viewing distances, and these internal features are often telling of natural growth and origin, which many educated buyers value as evidence of authenticity. Tourmaline is also a durable gem for jewelry, with a hardness of approximately 7 to 7.5 on the Mohs scale, and the cabochon form reduces vulnerability to chipping by eliminating sharp pavilion edges, making this piece suitable for rings or pendants with appropriate protective settings.

For the informed buyer, this 5.81 carat oval cabochon is attractive for several reasons that affect both aesthetic enjoyment and long term value. Size in green tourmaline at nearly six carats is significant, and when paired with intense, evenly distributed color and an excellent polish, it commands a premium over smaller or less saturated material. The absence of any enhancement elevates the gem to a different category in the market, as untreated stones are sought after for their natural state and collectible appeal. The Mozambique origin further enhances provenance, since stones from established pegmatite sources are often associated with consistent quality and supply reliability. Practical considerations for setting include a bezel or partial bezel to secure the domed cabochon and to protect the girdle and base, and the measurements given will allow precise planning for mounting. Care is straightforward, involving avoidance of hard knocks and exposure to extreme heat or chemicals, and regular cleaning with mild soap, warm water, and a soft brush will maintain the polish and translucency. At The Natural Gemstone Company we document these attributes to support appraisal and design decisions, and we are available to discuss custom mounting options, certification pathways, or additional imaging to assist jewelers and collectors in making an informed acquisition.