Natural Spinel 6.42 ct – Cushion Cut, Untreated, Pinkish - Orange, GRS Certified

Natural spinel, 6.42 carats, cushion cut, untreated, pinkish-orange color, GRS certified

Natural Spinel 6.42 ct – Cushion Cut, Untreated, Pinkish-Orange, GRS Certified

Name: Natural Spinel 6.42 ct – Cushion Cut, Untreated, Pinkish-Orange, GRS Certified
Brand: SOSNA Gems & Jewellery
SKU: 2545411
Price: 482654.00 CZK
Availability: InStock

482.654,00 CZK

This natural spinel weighs 6.42 carats and is cut in a sophisticated cushion shape with a brilliant/step cut, measuring 13.56 × 8.83 × 6.07 mm. The gemstone displays a unique and highly desirable pinkish-orange hue, combining warmth and brilliance. Tested by GRS (GemResearch Swisslab), it is certified with no indication of thermal treatment, confirming its natural, untreated status. Such clarity and untreated condition in spinels of this size are exceptionally rare, placing this stone in the upper tier of collectible gemstones. Its combination of vibrant color, impressive size, prestigious certification, and untreated origin make it a standout investment-grade gem, ideal for both discerning collectors and bespoke high jewelry.

482.654,00 CZK

From gemstone to jewelry

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Gemological overview

Technical and gemological information about this gemstone variety.

Gemological profile

Spinel is a natural magnesium aluminum oxide mineral valued for its excellent transparency, vibrant color range, and clean crystal structure. In gem-quality material, spinel is appreciated for its clarity and lively appearance, with colors ranging from red, pink, and purple to blue, gray, and black, depending on trace elements present during formation.
Chemically composed of magnesium aluminum oxide (MgAl₂O₄), spinel crystallizes in the cubic crystal system and belongs to the oxide mineral group. In transparent gem-quality specimens, it typically displays a vitreous luster with high clarity.
The refractive index of spinel generally ranges from approximately 1.718 to 1.738, producing a bright, balanced brilliance without excessive dispersion. Spinel is found in several regions worldwide, with notable sources including Myanmar, Sri Lanka, Vietnam, Tanzania, and parts of Afghanistan, each associated with slightly different color characteristics.

Durability & suitability

With a hardness of 8 on the Mohs scale, spinel offers very good durability suitable for everyday jewelry when properly set and worn with standard care. Its lack of cleavage contributes to excellent resistance against impact and abrasion compared to many other colored gemstones.
Spinel performs reliably in rings, pendants, earrings, and bracelets, including designs intended for frequent wear. Its combination of durability, stable color, and refined brilliance makes spinel a practical and versatile choice for both everyday jewelry and elegant, statement-oriented designs.

Treatments & authenticity

Spinel is most commonly found in nature without the need for enhancement. Treatments are generally uncommon, and gem-quality spinel is typically valued for its natural color and clarity.
Any treatments or enhancements, if present, are always clearly stated for each individual gemstone. Every stone is professionally examined, and transparent disclosure is regarded as a fundamental part of responsible gemological practice, allowing clients to make informed and confident decisions.

Our approach to gemstones

We focus primarily on natural, untreated gemstones, valued for their authenticity and inherent beauty.
Any treatments or enhancements are always clearly disclosed, allowing our clients to make informed decisions based on transparent gemological standards.

Sosna Gems is not a licensed financial advisor. Gemstones are collectibles, not securities. Past performance is not indicative of future results. Legal & risk disclosure .