4.43 Ct. Green Tourmaline from Mozambique

This transparent 4.43 carat green tourmaline presents an asscher cut in an octagon shape, with precise dimensions of 9.24 x 9.12 x 7.40 mm. The cutter has executed classic step faceting, producing concentric square facets on the crown and a stepped pavilion with cropped corners that emphasize the hall of mirrors effect typical of an asscher style. Clarity is graded as very very slightly included when evaluated at eye level, meaning the stone is effectively eye clean with only minor pinpoint inclusions visible under magnification, allowing for unimpeded light return and strong face up transparency. Color intensity is vivid, exhibiting saturated green tones that remain consistent across the table and facets, a result further enhanced by professional heat treatment. The proportions indicate an average diameter of approximately 9.18 mm and a depth of 7.40 mm, yielding a depth ratio of approximately 80.6 percent, a deliberate cutting decision that favors color saturation and carat retention over maximum spread, producing a deep, richly colored face up appearance. The polish is excellent, with crisp facet junctions and tight symmetry that maximize contrast between broad step flashes and deeper color zones, and the stone originates from Mozambique, a source noted for producing richly colored verdelite tourmaline.

On the Mohs scale the mineral tourmaline rates between 7 and 7.5, offering good resistance to everyday abrasion while remaining softer than corundum at 9 and diamond at 10, and slightly harder than quartz at 7. This hardness range makes the gem well suited for most jewelry applications, provided appropriate protective setting choices are made, such as a bezel or low profile prongs that shield the crown and the cropped corners of the asscher octagon from sharp impacts. Although heat treated and stable for normal wear, tourmaline can be sensitive to sudden temperature changes and aggressive mechanical shocks, so ultrasonic and steam cleaning should be avoided if internal features are present. For mounting advice, setting options, and secure shipment please consult The Natural Gemstone Company, where our lapidary specialists can recommend exact setting profiles that preserve the stone integrity while showcasing the vivid green color and superior step cut craftsmanship.