Natural aquamarine, 4.72 carats, cut-cornered rectangular cut, IF clarity, untreated, slightly bluish green, ČGL certified

Natural Aquamarine 4.72 ct – Cut-Cornered Rectangular, Untreated, ČGL Certified

Name: Natural Aquamarine 4.72 ct – Cut-Cornered Rectangular, Untreated, ČGL Certified
Brand: SOSNA Gems & Jewellery
SKU: 22-01-028
Price: 14170.00 CZK
Availability: InStock

14.170,00 CZK

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Gemstone Specification

Carat Weight 4.72

Dimensions 15.50 × 7.45 × 5.83 mm

Color Light Blue

Clarity Eye Clean

Shape Oval

Treatment No Treatment

Certification Sosna Gems Colored Stone Report

This natural Aquamarine weighs 4.72 carats and is expertly fashioned in a classic emerald cut (cut-cornered rectangular shape), measuring 15.50 × 7.45 × 5.83 mm. The gemstone displays a delicate very light, slightly greenish blue color, characteristic of natural aquamarine from the beryl family. With exceptional IF (Internally Flawless) clarity, the stone exhibits outstanding transparency and purity, allowing light to pass through the gemstone with remarkable brilliance.

Its elegant step-cut faceting highlights the gemstone's exceptional clarity and creates the sophisticated hall-of-mirrors effect for which emerald-cut gemstones are highly prized. The elongated proportions further enhance the visual size of the stone, making it appear even larger and more impressive when set in jewelry.

Certified by the Czech Gemological Laboratory (ČGL), this gemstone has been independently verified as natural beryl of the aquamarine variety. The combination of IF clarity, elegant emerald cut, attractive proportions, and laboratory certification makes this gemstone an excellent choice for collectors and bespoke jewelry creations. A refined aquamarine ideal for rings, pendants, and sophisticated custom jewelry designs where clarity and elegance are the primary focus.

Natural Aquamarine 4.72 ct – Cut-Cornered Rectangular, Untreated, ČGL Certified

14.170,00 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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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 .