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2.94 Ct. Blue Spinel from Tanzania
This loose stone ships by Dec 1
Item ID: | K18878 |
|---|---|
Dimensions (MM): help | Length: 10.05 Width: 7.64 Height: 6.03 |
Weight: | 2.94 Ct. |
Color: help | Blue |
Color intensity: help | Intense |
Clarity: help | Very Slightly Included |
Shape: help | Pear |
Cut: | Mixed Brilliant Cut |
Cutting style: | Faceted |
Enhancements: help | No Enhancement |
Origin: help | Tanzania |
Per carat price: help | $4,626 |
This pear shape spinel weighs 2.94 carats, and measures 10.05 x 7.64 x 6.03 mm, presenting a balanced silhouette that favors a slightly stout pear outline that suits both solitaire and halo treatments in jewelry. The cutting style is faceted, executed as a mixed brilliant cut, with a brilliant facet arrangement on the crown to maximize scintillation, and structured pavilion facets that control light return and color saturation. Facet junctions are precise and symmetry is well controlled, which is evident in the uniformity of flash across the table and shoulders. The excellent polish enhances facet contrast and allows clean transmission of light through the stone, yielding crisp facet reflections without surface haze or polishing lines.
Color and clarity are primary contributors to this gem performance. The color intensity is classified as intense blue, with a pure blue hue that sits away from strong secondary tones, allowing the stone to read as a classic blue spinel under varied light sources. The mixed brilliant faceting was selected to balance brilliance with color depth, using shallower crown facets and proportioned pavilion facets to avoid windowing while preserving saturation. Clarity is graded as very slightly included at eye level, with inclusions that are minimal in size and predominantly internal crystals and fine needles that do not form cleavage planes. Those inclusions are mostly confined to the pavilion, they do not interfere with the path of light through the crown, and they do not act as stress concentrators. Under magnification the stone reveals its internal character, but face up it maintains strong visual integrity and a lively face up appearance.
Durability characteristics make this spinel an excellent candidate for daily wear, spinel being a mineral with a Mohs hardness of 8 and with toughness that resists chipping better than many stones of comparable hardness. The absence of enhancement further preserves the natural lattice and surface condition of the material, which improves long term stability to daily environmental factors such as household chemicals and perspiration. The mixed brilliant cutting approach contributes to durability by providing well proportioned girdle thickness to protect the edge, and by avoiding extreme thin points that can be vulnerable in sharp tip areas of a pear shape. For ring use, a well executed bezel or protective prong setting that supports the tip and tail is recommended, while pendant and earring settings can capitalize on the gem literal durability with minimal protective elements. Routine care with a soft brush, mild detergent, and warm water is sufficient to maintain brilliance, and ultrasonics can be used when inclusions are closed and free of fracture planes, though visual inspection prior to ultrasonic cleaning is advised.
This spinel is of Tanzanian origin, a source known for producing clean material with saturated hues and stable crystallography, and it is offered by The Natural Gemstone Company with full disclosure of its no enhancement status. The craftsmanship reflects a controlled cutting strategy that prioritizes optical performance and structural soundness, delivering a stone with precise facet symmetry, excellent polish, and an intense blue that is consistent across viewing angles. For the informed buyer seeking a durable, wearable gem for daily use, this 2.94 carat pear shape blue spinel presents a technically sound choice, combining robust physical properties, thoughtful faceting, and natural color, making it suitable for a lifetime of wear when set and cared for according to standard gemological practice.























