Bluish Gray Spinel, Octagon Cut, 1.78 ct – Unheated Sri Lankan Gemstone

Natural octagon-cut spinel from Sri Lanka with a subtle bluish-gray tone and beautiful brilliance. Unheated and perfect for custom engagement rings.

  • Product label: Sold out
Sale price $279.00Regular price
Regular price $279.00
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Birthstone
Spinel is the birthstone for August and a symbol of renewal and energy. Officially recognized by the American Gem Trade Association in 2016, it is cherished for its durability, natural brilliance, and historical charm.
Gemstone Description
This 1.78 ct bluish gray spinel displays a captivating balance between elegance and character. Its color—very slightly greenish blue with a soft grayish modifier—shifts beautifully under different lighting conditions, offering versatility for any design.

The octagon cut enhances both brilliance and symmetry, while the natural clarity and lack of treatment confirm its quality and authenticity. Whether for an engagement ring or a bespoke piece of jewelry, this Sri Lankan spinel stands out for its modern sophistication.

Its chromatic depth and delicate color behavior make it an exceptional choice for collectors and designers alike.
Gemstone Specifications
WEIGHT : 1.78 ct
SIZE : 7.78 * 6.11 * 4.36 mm
SHAPE : Octagon
COLOR : 21. (vslgB) very slightly greenish Blue
TONE : 5. Medium
SATURATION : 3. Very Slightly Brownish / Grayish
CLARITY GRADE : Slight
CUT GRADE : Very Good
TREATMENT : Not evidence of heat
HARDNESS : 8
Inclusions type : Negative Crystals.
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