Black Agate - Oval

This bold Black Agate cabochon is cut into a classic 30mm by 22.5mm oval with a smooth, low-profile 5mm high dome. While predominantly a deep, obsidian black, this particular stone features a striking natural contrast of creamy brown mottling. This organic patterning softens the intensity of the black, giving the stone a sophisticated, marbled appearance that ensures no two pieces are exactly alike.

The substantial surface area makes it an excellent choice for a large-scale statement ring or a classic bezel-set pendant. Its neutral yet complex color palette allows it to pair beautifully with both silver and gold metals.

Key Properties & Care

As a variety of Chalcedony, Black Agate is a tough and reliable gemstone, making it perfect for pieces intended for frequent wear:

• Mohs Hardness: Black Agate has a hardness of 6.5 to 7 on the Mohs scale. It is quite durable and resistant to the scratches and scuffs of everyday activity.

• Cleaning: Gently clean using lukewarm water and a soft cloth. A mild soap solution is safe to use for maintaining its polished luster. Ensure the stone is rinsed thoroughly and dried immediately.

• Maintenance:

  • Avoid Chemicals: Do not expose the stone to harsh household chemicals, bleach, or acidic solutions, which may affect the surface finish.

  • Avoid Extreme Temperatures: To prevent any potential internal stress, keep the stone away from sudden, extreme heat or cold.

  • Avoid Impact: While durable, agate can chip if subjected to sharp, strong impacts against hard surfaces like stone or metal.

  • Storage: Store your agate jewelry separately from other pieces to prevent the metal or harder stones from coming into contact with the polished dome.

All photos are for indication only. We cannot guarantee that your screen is displaying the actual colour or refraction of the gemstone.