Natural Aquamarine 11.42 ct – Oval Cut, Untreated

Natural aquamarine, 11.42 carats, oval cut, untreated, vivid blue

Natural Aquamarine 11.42 ct – Oval Cut, Untreated

Name: Natural Aquamarine 11.42 ct – Oval Cut, Untreated
Brand: SOSNA Gems & Jewellery
SKU: AQ006PK
Price: 23513.00 CZK
Availability: InStock

23.513,00 CZK

Gemstone Specification

Carat Weight 11.42

Dimensions 16.53 x 12.92 x 9.30 mm

Color Light Blue

Clarity Slightly Included

Shape Oval

Treatment No Treatment

Certification Basic Seller's Certificate

This 11.42 carat natural aquamarine presents a refined blue hue, shaped into a classic oval cut measuring 16.53 × 12.92 × 9.30 mm. With its impressive size and harmonious proportions, the gemstone radiates brilliance and elegance, making it a striking centerpiece for bespoke jewelry such as rings or pendants. Being untreated, it preserves its natural authenticity and purity, which enhances its appeal among collectors. Large aquamarines of this caliber are admired for their beauty and rarity, making this gemstone a distinguished choice for fine jewelry creations or as a unique addition to a curated gem collection.

Natural Aquamarine 11.42 ct – Oval Cut, Untreated

23.513,00 CZK

From gemstone to jewelry

This example illustrates one possible way a gemstone may be developed into a bespoke piece. Final design is always defined individually, based on the stone and its natural character.

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Bespoke jewelry

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Each design is developed individually, guided by the stone, its proportions and natural character.

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Gemological Disclosure

Each gemstone is professionally examined and accompanied by clear gemological information regarding its characteristics, treatments, and origin.

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Gemological overview

Technical and gemological information about this gemstone variety.

Gemological profile

Aquamarine is a blue to blue-green variety of beryl, appreciated for its clear, fresh coloration and natural transparency. Within the beryl family, it is valued for its calm visual character and refined appearance, particularly in well-cut stones with even color distribution.
Chemically composed of beryllium aluminum silicate (Be₃Al₂Si₆O₁₈), aquamarine crystallizes in the hexagonal crystal system and belongs to the silicate mineral group. In gem-quality specimens, it typically displays a vitreous luster and high transparency.
The refractive index of aquamarine generally ranges from 1.577 to 1.583, contributing to a subtle, elegant brilliance rather than strong dispersion. Aquamarine is found in several regions worldwide, with typical sources including Brazil, Madagascar, Mozambique, Nigeria, and Pakistan, each known for slightly different tonal qualities.

Durability & suitability

Aquamarine is a blue to blue-green variety of beryl, appreciated for its clear, fresh coloration and natural transparency. Within the beryl family, it is valued for its calm visual character and refined appearance, particularly in well-cut stones with even color distribution.
Chemically composed of beryllium aluminum silicate (Be₃Al₂Si₆O₁₈), aquamarine crystallizes in the hexagonal crystal system and belongs to the silicate mineral group. In gem-quality specimens, it typically displays a vitreous luster and high transparency.
The refractive index of aquamarine generally ranges from 1.577 to 1.583, contributing to a subtle, elegant brilliance rather than strong dispersion. Aquamarine is found in several regions worldwide, with typical sources including Brazil, Madagascar, Mozambique, Nigeria, and Pakistan, each known for slightly different tonal qualities.

Treatments & authenticity

With a hardness of 7.5 to 8 on the Mohs scale, aquamarine offers good durability suitable for everyday jewelry when properly set and worn with standard care. It performs reliably across a wide range of jewelry designs, including rings, pendants, earrings, and bracelets.
While aquamarine is generally resistant to everyday wear, larger stones or more exposed settings benefit from protective designs to reduce the risk of impact. Its combination of durability, clarity, and naturally soothing color makes aquamarine a versatile choice for both everyday jewelry and elegant, understated statement pieces.

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 .