2.89 Ct. Blue Aquamarine from Madagascar

This specimen from The Natural Gemstone Company is a transparent blue aquamarine weighing 2.89 carat, with exact dimensions of 10.17 by 7.78 by 5.67 millimeters, presented in a classical emerald cut. The cutting architecture follows a step cut paradigm, with a large rectangular table, truncated corners, and parallel linear facets on both the crown and pavilion, producing the hallmark hall of mirrors effect that collectors and connoisseurs value. Clarity is graded as very slightly included, evaluated at eye level, which translates to an essentially eye clean appearance under normal viewing conditions. Color intensity is light, exhibiting a cool pure blue hue with minimal green component, and the stone is confirmed as natural with no enhancement, originating from Madagascar, a source noted for producing clear, cold sea blue aquamarines. The polish is excellent, and the facet junctions and girdle finish are executed with precision, contributing to both optical performance and durability.

At the heart of this gem is a proportion set that optimizes the emerald cut geometry for maximum internal reflection, with a length to width ratio of approximately 1.31 and a depth of 5.67 millimeters that yields an overall depth ratio around 63 percent, a proportion that sits comfortably within the preferred range for step cut aquamarines. The long rectangular facets on the crown are calibrated to reflect broad flashes of light rather than scintillation specks, producing even planes of brightness that reinforce the stone surface and the ice like transparency aquamarine is prized for. The pavilion steps are executed to preserve light return and avoid leakage through the culet area, and the table facet is sized to balance color transmission with light return, allowing the light blue tone to read consistently from multiple viewing angles. Symmetry is strict, with facet planes precisely aligned so that reflections remain coherent across the table, and the excellent polish ensures that facet boundaries remain crisp, reducing micro diffusion and optimizing luster.

Color performance in this crystal is subtle and technically interesting, the light color intensity means the stone reads as pale sea blue rather than saturated ocean blue, and the cut is intentionally proportioned to concentrate the available color without introducing darkness or windowing. Aquamarine typically shows only weak pleochroism, and this piece conforms to that expectation, showing a stable blue hue in both the lengthwise and transverse orientations, which is advantageous for jewelry settings that may rotate in normal wear. The absence of heat treatment or other enhancement preserves the native chromophore distribution, so color is uniform and natural, and the step cut enhances the perception of depth through parallel facet planes rather than through dispersion. This restrained color profile yields high versatility for design, pairing well with warmer metals to add contrast, or with cool white metals to accentuate the stone straight tone.

Clarity characteristics are minimal and described accurately as very slightly included at eye level, meaning that inclusions are present but do not detract from the gem optical transparency or from its visual appeal when mounted. Under magnification, inclusions appear as fine needle or fingerprint features that are typical of beryl family minerals, and they have been oriented and positioned by the cutter to avoid interrupting major light paths across the table. The practical result is a stone that behaves as if essentially flawless to the naked eye, which amplifies the crystalline purity and enhances the crispness of facet reflections. From a material science perspective, the internal features do not compromise structural integrity, and the excellent lapidary finish further mitigates any stress concentrations, making the gem well suited to everyday jewelry use. The Madagascar provenance contributes geochemical context, as pegmatitic growth in that region commonly yields clean aquamarine crystals with cool blue hues, and the fact that this piece is offered untreated by The Natural Gemstone Company underscores its appeal to collectors and to buyers who prioritize natural state specimens.

For practical deployment in jewelry, the stone dimensions and the emerald cut silhouette make it an ideal candidate for a solitary ring setting, a tasteful pendant, or a refined pair of earrings when matched with a complementary mate. The 10.17 by 7.78 millimeter table provides a commanding face up presentation while the 63 percent depth preserves internal light play, making this aquamarine particularly effective in prong or semi bezel settings that allow light to enter from the pavilion and crown. The stable light blue color performs well against both white gold and platinum when a crisp modern look is desired, and it also offers an elegant contrast with rose gold when a warmer presentation is preferred. At The Natural Gemstone Company we document exact proportions and cutting notes for each stone, enabling designers and jewelers to plan mounting strategies that maintain optical balance. Overall the combination of measured proportions, precise step cut faceting, excellent polish, eye level clarity, and natural provenance produces a gem whose apparent flawlessness enhances its beauty from every angle, translating technical excellence into aesthetic presence.