1.59 Ct. Emerald from Zambia

This transparent oval shaped emerald weighs 1.59 carat and measures 9.14 x 6.85 x 4.53 mm, presenting a balanced face up size and proportion for a classic gem forward setting. The cutting style is faceted with a mixed brilliant cut, combining step cut pavilion facets with a brilliant cut crown to enhance light return and color saturation. The clarity grade is included when evaluated at eye level, consistent with natural emeralds from primary sources, and the surface shows an excellent polish that refines the facet junctions and maximizes visual appeal. Color intensity is described as intense, yielding a vivid green that reads strongly even under standard viewing conditions, and the gemstone has received standard enhancement consistent with trade practice. The origin is Zambia, a source known for producing green emeralds with distinct bluish to pure green tones and good crystalline structure. This description is offered by The Natural Emerald Company.

The carat weight of 1.59 places this emerald in a category that materially influences both rarity and market value. In the trade, emeralds near and above the one and a half carat threshold are markedly less common than smaller sizes, and buyers frequently value the additional weight not only for visual presence but for the scarcity of intact crystals large enough to cut desirable proportions. Price per carat does not increase linearly as weight grows, it typically escalates more steeply for larger sizes with strong color and acceptable clarity. For this reason, a 1.59 carat emerald of intense color commands a premium relative to numerous smaller stones that may share similar color or cut characteristics. The combination of weight and intense color in this specimen contributes to its classification as a more collectible natural emerald, and the retained carat weight reflects careful cutting decisions that prioritized both color retention and overall yield from the rough.

Beyond weight, the measured dimensions and cutting approach contribute to the perceived size and optical performance of the gem. The oval outline offers a generous face up area relative to many round or deep cut alternatives of similar carat weight, and the mixed brilliant cutting style helps to break up and distribute light across the pavilion and crown, enhancing the sense of life and scintillation. The depth of 4.53 mm falls within a range that balances durability with face up spread, supporting stable mounting while avoiding overly deep proportions that would reduce apparent size. Included clarity at eye level is typical for emeralds, and those internal features can act as identifying characteristics that confirm the natural origin and history of the stone. The excellent polish improves facet transparency and edge crispness, allowing the intense color to read more evenly and the internal features to appear with clarity rather than surface distraction.

The origin and enhancement status are important factors for both valuation and care. Zambian emeralds are valued for their stable crystalline habit and often intense, slightly bluish green hues, and this gem exemplifies those attributes while exhibiting the expected internal characteristics of a natural emerald. The stated enhancement is standard, commonly involving oiling or similar accepted treatments to reduce visibility of surface reaching fissures and to improve overall appearance, a practice that conforms with industry norms and is fully disclosed here. For setting and care, designers and owners should account for the included nature and treat polishing, cleaning, and routine maintenance with appropriate gentleness to preserve the oil treatment and surface condition. The Natural Emerald Company documents provenance and treatment disclosure, and this 1.59 carat oval offers a rare combination of size, color intensity, and cut quality that reflects considered cutting choices and the distinguishing qualities of Zambian material.