Natural Ruby - 2.16 ct, Untreated, GIA Certified

Name: Natural Ruby - 2.16 ct, Untreated, GIA Certified
Brand: SOSNA Gems
Price: 986622.00 CZK
Availability: InStock

986.622,00 CZK

Gemstone Specification

Carat Weight 2.16

Dimensions 7.34 x 7.17 x 5.07 mm

Color Red

Clarity Slightly Included

Shape Round

Treatment No Treatment

Origin Africa

Certification GIA

This 2.16 carat natural red ruby is an untreated gemstone selected for its vivid color and classic round cut. Measuring 7.34 × 7.17 × 5.07 mm, the stone offers strong face-up presence and balanced proportions, making it well suited for elegant fine jewelry designs.

The ruby displays SI clarity, with natural internal features visible under magnification and partially perceptible depending on lighting conditions. These inclusions are consistent with natural, untreated corundum and confirm the stone’s earth-mined origin.

According to the Gemological Institute of America (GIA), the stone shows no indications of treatment. This untreated status is an important quality factor for buyers seeking natural gemstones without artificial enhancement. The color is described in the trade as pigeon blood red; this term should be understood as a visual descriptor of saturation rather than a formal origin classification.

The stated African origin reflects the stone’s geological provenance without assigning it to a specific mining location. In this context, the ruby is positioned as a certified, untreated gemstone for fine jewelry, rather than as an investment-oriented asset.

This ruby is ideal for clients who prioritize natural integrity, certification, and strong color, and who are seeking a refined stone for bespoke jewelry or personal enjoyment.

Gemological Disclosure

This ruby contains natural inclusions typical of untreated corundum. These features are inherent to its formation and do not affect durability or suitability for jewelry use.

Natural Ruby - 2.16 ct, Untreated, GIA Certified

986.622,00 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.

Loose gemstone

Bespoke jewelry

Selected gemstones may also serve as the starting point for a bespoke piece.
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

Ruby is the red variety of the mineral corundum, valued for its rich color, durability, and long-standing historical significance. Its color ranges from pinkish red to deep red, with hue, tone, and saturation playing a key role in its visual character and overall appeal.
Chemically composed of aluminum oxide (Al₂O₃), ruby crystallizes in the trigonal crystal system and belongs to the oxide mineral group. In gem-quality material, ruby typically displays a vitreous luster with transparent to translucent clarity.
The refractive index of ruby generally ranges from approximately 1.76 to 1.77, producing a restrained brilliance that emphasizes depth of color rather than strong sparkle. Rubies are found in several regions worldwide, with notable sources including Myanmar, Mozambique, Thailand, Sri Lanka, and Madagascar, each associated with distinct visual characteristics.

Durability & suitability

With a hardness of 9 on the Mohs scale, ruby offers excellent durability suitable for everyday jewelry when properly set and worn with standard care. Its high resistance to scratching and lack of cleavage make it one of the most robust colored gemstones used in jewelry.
Ruby performs exceptionally well in rings, pendants, earrings, and bracelets, including designs intended for frequent wear. While natural inclusions are common and expected in ruby, thoughtful setting design can help protect the stone and preserve its appearance over time.

Treatments & authenticity

With a hardness of 9 on the Mohs scale, ruby offers excellent durability suitable for everyday jewelry when properly set and worn with standard care. Its high resistance to scratching and lack of cleavage make it one of the most robust colored gemstones used in jewelry.
Ruby performs exceptionally well in rings, pendants, earrings, and bracelets, including designs intended for frequent wear. While natural inclusions are common and expected in ruby, thoughtful setting design can help protect the stone and preserve its appearance over time.

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 .