5.30 Ct. Emerald from Colombia

This emerald presents as a technically accomplished specimen, weighing 5.30 carats, with dimensions of 12.15 by 9.34 by 6.71 millimeters, an emerald cut with truncated corners, and transparent body color. The stone displays vivid color intensity, with a saturated pure green tone typical of high quality Colombian material, and a clarity grade assessed as slightly included at eye level. The measured depth proportion is approximately 62.5 percent, a depth consistent with optimal face up color in step cut gems, and the overall proportions indicate an efficient translation of rough material to polished weight. The polish is excellent, producing crisp facet junctions and minimal surface hazing, and the enhancement is standard, performed to stabilize clarity pathways without materially altering the intrinsic color chemistry. The origin of this gem is Colombia, and that provenance is evident in the chromophore balance and the type of inclusion habits present.

From a faceting perspective, the emerald cut exhibited here is executed with an emphasis on classic step cutting geometry, using broad, flat crown steps to yield even color distribution, and a well formed pavilion with tiered steps to manage light return while minimizing faceted sparkle that would otherwise dilute the perceived body color. The cutter oriented the rough so that the longest axis of crystallographic zoning paralleled the table, a decision that preserves color saturation across the crown and reduces the appearance of banding when viewed face up. Edge bevels at the truncated corners were proportioned to protect stress points during setting, without unduly increasing the apparent table size. Facet junctions were maintained to tight tolerances, and the girdle thickness is consistent, supporting stable bezel or prong mounting. The slight inclusions are typical three dimensional internal features and silk like veils, and they were strategically positioned and masked by facet placement to remain non distracting at normal viewing distance.

Geologically and mechanically, this emerald began its life within Colombian pegmatitic and hydrothermal systems, in a hydrothermal environment enriched in beryllium and chromium, with minor vanadium contributions shaping the vivid green hue. The rough was recovered by artisanal and mechanized working teams who executed primary extraction and preliminary sorting, isolating material with clean crystallographic faces suitable for step cutting. The cutting sequence began with a careful study of the rough, identifying the planar cleavage and inclusion planes, and proceeded to preforming with diamond saws and laps to establish the major axes. The lapidary then executed the step cutting sequence, beginning with large crown steps, then establishing pavilion steps, and finishing with careful polishing using successively finer diamond pastes to achieve the excellent polish grade. Throughout this process the cutter employed optical assessment under controlled light, adjusting facet angles and table size to optimize color saturation and depth perception, and to mitigate the visibility of linear inclusions without resorting to excessive removal of carat weight.

As presented by The Natural Emerald Company this 5.30 carat Colombian emerald is configured and described for the knowledgeable buyer who values provenance, cut logic, and stable treatment practices. At the scale of 12.15 by 9.34 millimeters the gem is ideally suited to a prominent solitaire ring, a statement pendant, or a bespoke three stone composition, and the emerald cut lends itself to settings that protect the corners, such as bezel or V prong configurations, while exposing the broad table to maximize perceived color. Standard enhancement has been applied to improve visual clarity, and clients should note that routine care for oiled or similarly treated emeralds excludes aggressive ultrasonic cleaning and prolonged exposure to thermal shocks, and periodic maintenance including reapplication of clarity enhancing agents may be advisable to preserve face up appearance. For those seeking certification, detailed documentation of the stone attributes including weight, measurements, proportions, clarity observations, color grade, enhancement history, and Colombian origin will accompany the sale, and our gemological specialists are available to discuss mounting options, appraisal considerations, and long term care recommendations.