0.81 Ct. Blue Aquamarine from Mozambique

This listing presents a single, transparent 0.81 carat aquamarine, cut in a classical emerald cut shape, supplied by The Natural Gemstone Company. The stone measures 10.10 x 3.55 x 2.80 mm, dimensions that create an elongated, elegant profile well suited to a variety of bespoke settings. The emerald cut emphasizes clean geometric lines and large, open facets that convey a refined aesthetic, enabling the stone to read larger than its carat weight might suggest when set. Clarity is graded as very slightly included, evaluated at eye level, a level of clarity that offers visual purity with only minimal, unobtrusive internal characteristics. Color intensity is described as light, typical of aquamarine, presenting a cool, pale blue that maintains a serene and versatile appearance. The gem has received heat treatment enhancement, a standard and stable treatment used to refine color, and it exhibits excellent polish, which optimizes surface smoothness and light return.

From a design and fabrication standpoint, the combination of the emerald cut and the 10.10 mm length offers clear advantages for custom jewelry. The linear silhouette makes this aquamarine an excellent candidate for solitaire rings where the elongated shape follows the finger naturally, creating an impression of elongation and grace. For pendant designs, the length and shallow depth of 2.80 mm produce a low profile that sits comfortably against the body, allowing for a streamlined aesthetic that works well with both contemporary and vintage inspired mounts. The proportional width of 3.55 mm supports narrow collet or bezel settings that secure the stone while preserving its geometric outline. The measured depth relative to table dimensions is conducive to designs that balance brilliance with a flat, architectural presence, making it a versatile focal stone for minimalist, Art Deco, and modernist commissions.

Practical considerations for jewelers and clients include the clarity, polish, and treatment status of this aquamarine. Very slightly included clarity evaluated at eye level indicates that the stone will appear clean in most everyday viewing conditions, reducing the need for elaborate concealment techniques and allowing for relatively open settings that showcase the emerald cut facets. The excellent polish contributes to crisp facet junctions and a clean table reflection, attributes that support designs relying on optical clarity such as halo settings with delicate pavé surrounding or stepped bezel edges. Heat treatment, disclosed here as the enhancement, is an industry standard for aquamarine and is stable under customary wear conditions, but it should be noted when considering repolishing or exposure to high heat during setting. The origin, Mozambique, is noted for producing aquamarines with attractive light blue tones and consistent crystallographic quality, a provenance detail that may be relevant to clients seeking traceable sourcing or regional characteristics.

When planning custom jewelry around this 0.81 carat emerald cut aquamarine, several setting options maximize both aesthetic potential and wearability. A low profile bezel or semi bezel will protect the shallow girdle and maintain the slim silhouette created by the 2.80 mm depth, while prong settings, particularly four prong configurations aligned with the corners of the rectangular cut, will emphasize the open table and allow more light interaction. East west ring orientations can exploit the 10.10 mm length to produce a contemporary look on the hand, and three stone designs allow flanking accents to visually broaden the piece without overpowering the central aquamarine. Matching accent stones such as small brilliant cut diamonds or white sapphires will highlight the pale blue hue without conflicting with its light color intensity. For bespoke projects, considerations such as metal choice, shoulder taper, and finger size should be coordinated with the stone dimensions to ensure proportional balance, secure mounting, and an overall harmony between the gemstone and the finished setting. The Natural Gemstone Company can provide additional measurements and imagery to assist in design planning and to confirm how this particular aquamarine will integrate into a custom piece.