15.07 Ct. Emerald from Colombia

This exceptional 15.07 carat Colombian emerald, cut in an asscher octagon with precise dimensions of 16.73 by 15.55 by 9.96 millimeters, presents a rare combination of size, color, and workmanship that will appeal to the informed collector. The faceted asscher cut emphasizes broad, stepped facets and a square octagonal outline, a cutting style that preserves weight while showcasing the gem’s depth and saturation. With a vivid color intensity and an excellent polish, this stone displays the classic, highly sought after Colombian green that ranges from pure emerald to slightly bluish green depending on light and background. The almost square outline lends itself to both dramatic solitaire settings and refined vintage inspired designs, and the generous 9.96 millimeter depth contributes to strong color return and brilliance when placed in a ring or pendant. The Natural Emerald Company is proud to offer a stone with these exact proportions, which make it large enough to serve as a museum quality centerpiece, while the asscher cut gives the gem a clean, architectural presence that appeals to both traditional and modern tastes.

The clarity grade is slightly included, evaluated at eye level, a designation that in emeralds typically indicates inclusions that are observable to a practiced eye but do not overwhelm the stone or significantly impair its transparency. Inclusions in emeralds are not flaws in the same way they are in some other gem species, they are natural fingerprints of formation and offer verifiable evidence of natural origin. In Colombian emeralds these internal features often present as three phase inclusions, tiny mineral crystals, delicate feathering, and fluid filled cavities, each formation telling part of the stone’s geological history. For the educated buyer these features are assets rather than liabilities, they provide a unique identity for the gem and can be referenced if documentation, matching, or provenance work is ever required. Slight inclusions in this piece create internal character and depth, they interact with the step facets of the asscher cut to produce subtle flashes and internal texture that add to the stone’s personality, rather than detracting from its vivid hue and overall presence.

Enhancement is standard, a widely accepted practice in the trade for emeralds, and refers to minor clarity enhancement used to stabilize and improve the apparent clarity of the gem. Standard enhancement treatments, commonly used for Colombian emeralds, are applied with care to maintain the stone’s integrity and to enhance its visual appeal without altering the natural color balance that makes this origin desirable. For buyers who prioritize responsible purchasing, this emerald comes from Colombia, a historic and primary source for the world’s finest emeralds, and the treatment is consistent with industry norms, transparent and disclosed. From a value perspective, the combination of 15.07 carats, vivid color, an asscher octagon faceted cut with excellent polish, and Colombian origin creates a compelling proposition. This is a stone that functions both as an aesthetic statement and as an object of connoisseurship, where the slightly included clarity and natural inclusions serve as enduring markers of authenticity and natural formation. The Natural Emerald Company stands behind the gemological details provided, and we welcome inquiries from collectors and jewelers seeking additional documentation, imaging, or guidance on settings that will best showcase the color and structural beauty of this magnificent emerald.