How to Identify Genuine Black Onyx

Q: How to clean silver jewelry?

Use a soft cloth and silver polish. For a natural method, mix baking soda and water to create a paste.

Q: How to choose the right ring size?

Measure your finger using a ring sizer or compare with an existing ring. Ensure a comfortable but secure fit.

Q: What is Bali silver jewelry?

Bali silver is handcrafted jewelry made in Bali, Indonesia, often featuring intricate designs and oxidized finishes.

Q: Why is Bali silver unique?

Bali silver is known for its high-quality craftsmanship, traditional patterns, and 92.5% sterling silver composition.

Q: How to prevent silver jewelry from tarnishing?

Store in an airtight container, avoid exposure to chemicals, and wear it regularly to keep it polished.

Q: Is Bali silver real silver?

Yes, Bali silver is typically sterling silver (92.5% pure silver) and handcrafted by Balinese artisans.

Q: How to tell if silver is real or fake?

Check for 925 markings, use a magnet test (silver is non-magnetic), or perform a nitric acid test.

Q: Can you wear silver jewelry in water?

Yes, but prolonged exposure to water and chemicals (e.g., chlorine) can cause tarnishing.

Q: Why does silver jewelry turn black?

Silver reacts with sulfur in the air, causing oxidation that results in a blackened surface.

Q: What are the benefits of wearing silver jewelry?

Silver has antimicrobial properties, can help with energy balance, and is believed to promote emotional well-being.

Why It’s Important to Verify Onyx Authenticity

Black onyx is a striking and versatile gemstone often used in jewelry, prized for its deep, uniform color and elegant appearance. However, due to its popularity, imitations and treated stones are common in the market. Knowing how to determine the authenticity of black onyx ensures you invest in a genuine piece rather than a cheap substitute. Whether purchasing a ring, bracelet, or pendant, verifying the stone’s authenticity protects both your budget and the value of your jewelry.

Key Characteristics of Natural Black Onyx

Authentic black onyx has distinct features that set it apart from fakes or dyed alternatives:

Color: True black onyx is solid black or very dark brown, without unnatural shades like green or gray.
Texture: It has a smooth, polished surface with a slight waxy luster.
Banding: While some onyx stones display faint stripes, high-quality black onyx is usually uniform.
Hardness: Onyx ranks 6.5-7 on the Mohs scale, making it resistant to light scratches.

If the stone appears too perfect or has an unnatural sheen, it may be synthetic or dyed.

5 Easy Ways to Test Black Onyx at Home

The Scratch Test
Gently drag a sharp object (like a needle) across an inconspicuous area. Real onyx will not scratch easily, while plastic or glass imitations will show marks.
The Light Test
Hold the stone under bright light. Natural onyx is opaque, while dyed agate or resin may appear translucent at the edges.
The Temperature Check
Genuine onyx feels cool to the touch and warms slowly. Plastic or glass fakes heat up quickly.
The Water Test
Submerge the stone briefly. If the color bleeds, it’s likely dyed.
Examine the Surface
Look for air bubbles or uneven coloring—signs of artificial materials.

Professional Verification: When to Consult an Expert

While home tests help, some cases require professional assessment:

If purchasing a high-value piece, a gemologist can confirm the mineral’s authenticity.
Advanced tools like UV light or magnification reveal treatments not visible to the naked eye.
Certification from a reputable lab ensures the stone is natural and untreated.

Common Onyx Imitations and How to Spot Them

Dyed Agate: Often sold as black onyx but shows green or gray undertones under light.
Resin or Plastic: Lightweight, scratches easily, and lacks the cool feel of real stone.
Glass: Has a glossy finish and may contain bubbles.

Choosing High-Quality Black Onyx Jewelry

When shopping for onyx jewelry:

Buy from trusted sellers like Island Soul, known for authentic gemstones.
Check for consistent color and a smooth, polished surface.
Avoid pieces with an unnaturally low price—genuine onyx has moderate value.

Caring for Natural Onyx: Preserving Its Beauty

Clean with a soft cloth and mild soap—avoid harsh chemicals.
Store separately to prevent scratches from harder gems.
Keep away from prolonged sunlight to prevent fading.

Conclusion: What to Look for When Buying Onyx

To determine if black onyx is real, examine its color, weight, and texture. Simple tests like the scratch or light check can help, but for certainty, professional verification is best. Whether you seek a bold statement piece or a subtle accent, choosing genuine onyx ensures lasting beauty and value.

Explore exquisite black onyx jewelry at Island Soul—where authenticity meets craftsmanship.