7.91 Ct. Blue Aquamarine from Brazil

One beautiful transparent 7.91 carat emerald cut blue aquamarine, measuring 18.75 x 8.61 x 6.63 millimeters, presents a textbook example of step cut craftsmanship. The elongated emerald cut exhibits broad parallel facets on both the crown and pavilion, creating the classic hall of mirrors effect that emphasizes color and clarity rather than scintillation. The table is proportioned to maximize the stone face up area while preserving depth to maintain saturation, and the trimmed corners and precise facet junctions reflect an excellent polish produced by experienced lapidary work. Clarity has been graded as very very slightly included at eye level, with only minor needle and feather characteristics that remain undetectable in typical wear and that do not interfere with light transmission. Color intensity is described as intense, yielding a vivid blue that benefits from controlled heat treatment, a standard enhancement for aquamarine sourced from Brazil, employed to reduce greenish overtones and stabilize tone. The combination of superb cut geometry, well controlled heat enhancement, and Brazilian origin results in a gem with transparent clarity, crisp facet definition, and sustained color under varied lighting, suitable for high quality custom settings.

When designing a bespoke piece around this aquamarine, complementary gemstones and metal choices should reinforce the stone geometry and cool color palette. A double halo of precision matched brilliant cut diamonds in a near colorless grade will enhance perceived brightness without competing with the core blue, while tapered baguette diamonds aligned to the long axis will echo the step cut lines and extend visual length. For stronger chromatic contrast, small round or oval Ceylon sapphires in a slightly deeper cornflower blue will anchor the composition and create layered blue depth, whereas mint green tsavorites set as accent points can introduce a fresh counterpoint to the intense blue. Metal choice is decisive, white platinum or 18 karat white gold will maintain cool tonality and crisp facet reflections, while a thin bezel in warm 18 karat rose gold can provide a modern contrast without softening the aquamarine color, if a more fashion forward piece is desired. The Natural Gemstone Company can provide precision matched melee, calibrated tapered baguettes, and CAD assisted design studies to ensure prong placement and facet alignment preserve the gem symmetry and protect the girdle, resulting in a custom ring or pendant that highlights the aquamarine technical virtues and visual presence.