1.01 Ct. Bluish Green Sapphire from Madagascar

This sapphire is a transparent, emerald cut, bluish green gem, weighing 1.01 carats, with precise dimensions of 6.28 x 4.62 x 3.39 mm. The stone displays an intense color intensity, a clarity grade of very slightly included as evaluated at eye level, and an excellent polish. The emerald cut is executed as a classical step cut, with broad rectangular table and concentric step facets on the crown and pavilion that emphasize color depth and internal clarity rather than scintillation. The measured depth of 3.39 mm yields a depth proportion of approximately 62 percent relative to the mean of the length and width, a proportion that favors strong color saturation in the pavilion while maintaining pleasing face up spread for most fine jewelry settings. This sapphire has been heat treated, a stable and common enhancement used to optimize hue and reduce silk and microscopic inclusions, and it is responsibly sourced from Madagascar.

From a lapidary perspective, the cut proportions and facet geometry are the defining technical attributes of this stone. The emerald cut employs parallel step facets creating a hall of mirrors effect, where large facet planes allow precise observation of color zoning and inclusions, and where facet junction quality directly affects the perceived brightness. In this example the facet junctions are sharp and the polish is excellent, producing crisp light return across the table and controlled windowing through the pavilion steps. The very slightly included clarity grade indicates the presence of small natural features, likely pinpoint crystals or faint needle silk, that are observable under close inspection at eye level but do not materially interrupt the gem’s transparency or the clean display of its intense bluish green. Optical behavior includes subtle pleochroism, with dominant bluish tones shifting to greener flashes as the orientation changes, a characteristic well matched to the step cut which allows collectors and designers to orient the stone to favor either hue. The heat treatment is consistent with standard gemological practice for corundum, it is permanent under normal wear conditions, and it has been applied with care to preserve the stone’s inherent zoning and to enhance the attractive teal to bluish green balance for which Madagascan sapphires are prized.

As a precision cut, natural sapphire from Madagascar, this gemstone is an exceptional candidate for a high end collection or for a bespoke jewelry commission. Its size and proportions make it suitable as a refined solitaire center in a fine ring design, particularly in settings that protect the corners and emphasize the long axis of the emerald cut, or as a central element in a three stone design paired with calibrated accent diamonds to enhance brilliance and contrast. For collectors who value technical attributes, this stone offers a noteworthy combination of intense color saturation, controlled depth proportion, and step cut craftsmanship that highlights clarity and color rather than flash alone. The Natural Sapphire Company presents this sapphire with full disclosure of treatment and origin, and we recommend gemological documentation for acquisition records and insurance. For connoisseurs assembling a portfolio of museum quality gemstones, this 1.01 carat emerald cut bluish green sapphire represents a durable and visually compelling addition, offering both lapidary precision and the distinctive Madagascar color profile that complements advanced collections and bespoke design projects.