1.51 Ct. Green Sapphire from Ceylon (Sri Lanka)

This listing presents a single transparent green sapphire, precisely weighed at 1.51 carats, cut in an emerald shape, with dimensions of 7.19 x 5.33 x 3.58 mm. The stone displays an intense green hue, evaluated as intense color intensity, and carries a clarity grade described as very very slightly included when viewed at eye level. The cut is an emerald step cut, and the surface exhibits an excellent polish. The sapphire originates from Ceylon Sri Lanka, and it has undergone standard heat treatment to enhance color and stability. These objective attributes define the gem at hand, and The Natural Sapphire Company offers this information so that the gem may be assessed on its measured merit.

Optically this sapphire conveys the hallmark reflective qualities of corundum, with crisp facet reflections and a strong vitreous lustre. Corundum typically has a refractive index in the range associated with pronounced light return, and the emerald cut applied here emphasizes broad, parallel flashes of light rather than the dispersed pinpoint scintillation produced by brilliant cuts. The step faceting of the emerald shape creates a hall of mirrors effect, producing large, even flashes that give the green a deep, consistent appearance across the table, and allowing the intense color to read strongly from multiple viewing angles. Compared with a brilliant cut sapphire of the same weight and color, this emerald cut will appear more controlled in its sparkle, offering bold flashes and an elegant, architectural visual character rather than a high frequency of small scintillating points.

When compared to other gemstones in the green category, the reflective and optical behavior of this Ceylon sapphire differs in predictable ways. Relative to emeralds which are beryl family stones, this sapphire offers greater transparency and a cleaner light return in equivalent clarity grades, because emeralds commonly contain more inclusions that diffuse light and create a softer, more velvety appearance. Compared to green tourmaline, which typically has a lower refractive index, the sapphire will display stronger facet brightness and a firmer, more reflective surface. Against green garnets such as tsavorite, which can exhibit higher dispersion and therefore slightly more fire, the sapphire offers steadier color saturation and more distinct facet flashes, while the garnet may display greater fire but often less depth of tone. Green spinel and certain green sapphires from different localities may show similar vitreous lustre however the origin from Ceylon in this case contributes to a particular combination of clarity, tone, and saturation that is often described as elegant and well balanced.

From a practical standpoint the emerald cut green sapphire is well suited to settings that emphasize both the geometry of the stone and its saturated color, such as solitaire settings with a broad open gallery or bezel settings that protect the corners while allowing the depth of color to be seen. The hardness and durability of sapphire make it appropriate for everyday wear, and the excellent polish on this stone will retain strong light performance when properly mounted. Heat treatment is a widely accepted enhancement in sapphire grading and is stable under normal wear conditions, and the clear disclosure of origin and treatment by The Natural Sapphire Company supports an informed selection. For those comparing reflective qualities in order to select a stone that emphasizes color depth and controlled, architectural flashes rather than maximal scintillation, this emerald cut Ceylon green sapphire presents a conclusive example, combining transparency, intense color, and refined step cut reflections.