Natural Black Agate Disc Round Cut Black Gemstones

? Gemstones ?

Black onyx is a striking and versatile gemstone known for its deep, lustrous black color and smooth, shiny surface. As a variety of chalcedony, it has fascinated people for centuries??not only for its beauty but also for its believed metaphysical properties.

Composed primarily of silica like other quartz varieties, black onyx forms through the slow crystallization of silica-rich solutions in the gas cavities of molten lava. Moreover, its signature black color typically results from trace amounts of iron and other minerals present during formation.

One of the most notable features of black onyx is its consistent color and smooth texture. While most specimens are pure black, some may display subtle bands or layers of white, gray, or brown, adding depth and uniqueness.

Thanks to its Mohs hardness rating of 6.5 to 7, black onyx stands up well to daily wear, making it ideal for various applications such as rings, pendants, and ornamental carvings.

Historically, many cultures revered black onyx for both decorative and symbolic reasons. For instance, the ancient Egyptians carved it into scarabs and amulets, believing it offered spiritual protection. Meanwhile, the Greeks and Romans favored black onyx for cameos and intaglios because of its smooth texture and ability to hold intricate carvings.

We pride ourselves as a premier jewelry manufacturer with state-of-the-art manufacturing facilities.

We specialize in high-end custom services, offering OEM/ODM customization services to create beautiful gemstones and jewelry to your exact specifications.

All gemstones are guaranteed to be 100% natural, providing you with unparalleled quality and authenticity.

Our gemstones come in standardized calibrated sizes in millimeters. If you have any questions or need assistance, our team is here to help.

Custom Semi-Precious Stones

At Qinfa Jewelry, we bring your unique vision to life with stunning precision. By combining cutting-edge CNC technology and expert craftsmanship, we create custom jewelry that truly reflects your style and elevates your brand.Whether you??re based in China or anywhere else in the world, our innovative designs help you stand out through originality and timeless elegance.

Since customization lies at the heart of our work, we focus on celebrating each wearer??s individuality. Therefore, we offer a wide range of options ?? from exclusive, one-of-a-kind pieces to fully tailored collections ?? all carefully crafted to meet your exact needs.

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