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Natural Black Onyx Gemstone Cabochons | Polished Black Stone for Rings & Pendants
Natural Black Onyx Gemstone Cabochons | Polished Black Stone for Rings & Pendants
Shipping Policy
Envío a todo el mundo por solo 5 USD (añadir piedras ilimitadas). Ahora ofrecemos envío DDP (pago de impuestos) a EE. UU. Garantizamos cero aranceles adicionales. Sin cargos sorpresa en la entrega.
Tiempo de procesamiento:
Todos los pedidos se procesan en un plazo aproximado de 1 a 3 días hábiles. No se envían ni entregan pedidos los fines de semana ni festivos. Si tenemos un gran volumen de pedidos, los envíos podrían retrasarse algunos días. Por favor, espere días adicionales de tránsito para la entrega. Si se produce un retraso significativo en el envío de su pedido, nos pondremos en contacto con usted por correo electrónico.
Tarifas de envío y estimaciones de entrega:
Los gastos de envío de tu pedido se calcularán y mostrarán al finalizar la compra. Los plazos de entrega varían según el método de envío elegido y el destino.
Envío estándar: 10 a 14 días hábiles aproximadamente (postales, xpressbees)
Envío Express : 5 a 9 días hábiles aprox.
Tenga en cuenta que ocasionalmente pueden producirse retrasos en la entrega, especialmente durante temporadas altas.
El PRECIO es fijo de 5 USD para envío regular (agregue tantas piedras como desee en el pedido)
El precio es fijo 25 USD (express)
Envío regular (10 a 14 días hábiles aprox., totalmente rastreable)
Número de seguimiento proporcionado
Envío exprés (5 a 9 días hábiles aprox., totalmente rastreable) Número de seguimiento proporcionado
Confirmación de envío y seguimiento del pedido:
Recibirá un correo electrónico de confirmación de envío una vez que se haya enviado su pedido, con su(s) número(s) de seguimiento. El número de seguimiento se activará en 24 horas.
Aduanas, aranceles e impuestos:
Cabochons4sale no se responsabiliza de los aranceles ni impuestos aplicados a su pedido. Todos los cargos aplicados durante o después del envío son responsabilidad del cliente (aranceles, impuestos, etc.).
Política de envíos internacionales:
Actualmente realizamos envíos a la mayoría de los países. Si su país no aparece en la lista al finalizar la compra, contáctenos para consultar las opciones de envío.
Size & Weight
- All gemstones are measured in millimeters (mm).
- Dimensions are listed as length × width × depth, except for round stones which are measured as diameter × depth.
- Always choose gemstones by size, not by weight!
- Different gem varieties have different densities, so carat weight isn’t a reliable indicator of size.
- Note: 1 ct = 0.2 g
| Treatment | Description |
|---|---|
| Natural | This gemstone has zero treatments—no heat, no irradiation, no filling, no stabilisation. It’s simply mined, cut, and polished. |
| Heated | Heating enhances or develops colour and clarity, commonly seen in Sapphire, Ruby, Tanzanite, Topaz, and Zircon. |
| Dyed | This process adds colouring agents to create a richer, more even colour. Traditionally associated with Agate and still used today for certain Onyx and Agate stones. |
| Irradiated | Radiation treatment modifies light absorption, transforming clear stones like Topaz into blue varieties. |
| Coated | A thin metallic film is added to produce the iridescent look found in Mystic or Azotic quartz. |
| Smoked | Foil-wrapping and gentle heating allow smoke to enter the opal, darkening its body colour and boosting play-of-colour. Common in some Ethiopian Black Opals. |
| Stabilised | Resin or polymer is infused into porous gems to improve hardness, density, and colour—essential for fragile stones like Turquoise. |
| Cultured | Human-assisted pearls grown in freshwater or saltwater molluscs. They grow faster and are more reliable, which keeps them affordable. |
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0% arancel
Zero Tariffs, & Zero Surprises.
Perforación libre
Free Drilling, No Extra Cost. Click to see chart.
Piedra igual a la imagen
What You See Is Exactly What You Get.
Detalles verdaderos
Real Stones. Real Trust.
Envíos a todo el mundo
Fast Shipping with Tracking
Natural Black Onyx Gemstone Cabochons
About Black Onyx
Discover the timeless elegance of natural Black Onyx gemstones, admired for their rich jet-black color, smooth texture, and sophisticated appearance. Known as one of the most popular gemstones in jewelry design, Black Onyx offers a bold and luxurious look that complements both modern and classic styles.
Each Black Onyx cabochon showcases a deep, uniform black color with a beautiful polish that enhances its natural beauty. Its versatility and striking appearance make it a favorite among jewelry designers, artisans, and gemstone collectors worldwide.
Perfect for Jewelry Making
Black Onyx gemstones are ideal for creating stunning handmade jewelry pieces, including:
- Rings
- Pendants
- Earrings
- Bracelets
- Necklaces
- Wire Wrapped Jewelry
- Men's Jewelry
- Artisan Jewelry Designs
- Designer Jewelry Collections
Their classic black color pairs beautifully with silver, gold, copper, and other gemstones.
Premium Quality Gemstones
Each Black Onyx gemstone is carefully selected for its color consistency, polish, durability, shape, and overall appearance. Our cabochons feature a smooth finish and premium craftsmanship, making them ideal for professional jewelry making.
Authenticity Guaranteed
Every gemstone is tested by an authentic gemological laboratory to ensure it is natural and genuine. We are committed to providing authentic gemstones that meet professional quality standards.
Expert Gemologists & Skilled Artisans
Our team of expert gemologists and skilled artisans has over 20 years of experience in gemstone grading, selection, cutting, and finishing. Their expertise helps ensure premium quality in every gemstone.
Strict Quality Control
Each gemstone undergoes a detailed inspection process before shipping. Our quality control team carefully evaluates color, polish, finish, shape, and overall appearance to ensure only premium-grade gemstones reach our customers.
Available in Multiple Options
Choose from:
- Various Sizes
- Different Shapes
- Matching Pairs
- Single Stones
- Jewelry Making Cabochons
Every gemstone is selected to provide beauty, consistency, and quality.
Worldwide Shipping
We provide secure worldwide shipping and reliable delivery service.
✅ Flat Shipping Charge: $5 Only
✅ Add Unlimited Stones
✅ No Extra Shipping Charges
✅ Secure Packaging
✅ Smooth Worldwide Delivery
Why Choose Our Gemstones?
✔ Natural & Genuine Gemstones
✔ Lab Tested Quality
✔ Expert Gemologist Team
✔ 20+ Years of Experience
✔ Strict Quality Control
✔ Premium Polish & Finish
✔ Wide Variety of Sizes & Shapes
✔ Fast Worldwide Shipping
✔ Top Notch Customer Service
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What is Black Onyx gemstone?
Black Onyx is a striking variety of chalcedony known for its deep black appearance, smooth texture, and elegant polished finish. It is widely used in jewelry, carvings, and decorative gemstone designs. -
What makes Black Onyx popular for jewelry making?
Its dark, sophisticated color provides a strong contrast with metals and other gemstones. Black Onyx works beautifully in rings, pendants, bracelets, earrings, and statement jewelry. -
Is Black Onyx naturally black?
Black Onyx available in the gemstone market is commonly enhanced to achieve a consistent deep-black color. Natural chalcedony can occur in dark shades, but uniform black material is often treated. -
What shapes can Black Onyx gemstones be cut into?
Black Onyx can be shaped into ovals, rounds, cushions, pears, squares, rectangles, freeforms, and custom shapes. Its versatility makes it suitable for both classic and contemporary jewelry designs. -
Can Black Onyx be used as a cabochon?
Yes, Black Onyx is particularly well suited to cabochon cutting. Its smooth surface and rich color create a clean, refined appearance that works well for jewelry settings. -
How should Black Onyx gemstones be cared for?
Clean Black Onyx gently with a soft cloth and mild soapy water. Avoid harsh chemicals, ultrasonic cleaners, and sudden temperature changes to help preserve its polished surface. -
Where can I buy Black Onyx gemstones online?
You can explore Black Onyx gemstones online at Cabochons4sale, a trusted manufacturer and supplier offering gemstone options for jewelry designers, collectors, and wholesale buyers. -
How can I find quality Black Onyx for jewelry projects online?
Look for consistent color, smooth polishing, accurate measurements, and clearly presented gemstone photographs. Cabochons4sale offers Black Onyx suitable for designers looking for professionally cut gemstone pieces. -
Can Black Onyx be customized for jewelry designs?
Yes, Black Onyx can be produced in different sizes, shapes, and cutting styles to suit custom jewelry requirements. This makes it useful for both individual artisan projects and larger production orders. -
Why do jewelry designers choose Black Onyx?
Black Onyx offers a timeless appearance that pairs easily with gold, silver, platinum, and other gemstones. Its bold yet minimal look makes it suitable for men's jewelry, women's jewelry, and modern statement pieces.
Envío a todo el mundo por solo 5 USD (añadir piedras ilimitadas). Ahora ofrecemos envío DDP (pago de impuestos) a EE. UU. Garantizamos cero aranceles adicionales. Sin cargos sorpresa en la entrega.
Tiempo de procesamiento:
Todos los pedidos se procesan en un plazo aproximado de 1 a 3 días hábiles. No se envían ni entregan pedidos los fines de semana ni festivos. Si tenemos un gran volumen de pedidos, los envíos podrían retrasarse algunos días. Por favor, espere días adicionales de tránsito para la entrega. Si se produce un retraso significativo en el envío de su pedido, nos pondremos en contacto con usted por correo electrónico.
Tarifas de envío y estimaciones de entrega:
Los gastos de envío de tu pedido se calcularán y mostrarán al finalizar la compra. Los plazos de entrega varían según el método de envío elegido y el destino.
Envío estándar: 10 a 14 días hábiles aproximadamente (postales, xpressbees)
Envío Express : 5 a 9 días hábiles aprox.
Tenga en cuenta que ocasionalmente pueden producirse retrasos en la entrega, especialmente durante temporadas altas.
El PRECIO es fijo de 5 USD para envío regular (agregue tantas piedras como desee en el pedido)
El precio es fijo 25 USD (express)
Envío regular (10 a 14 días hábiles aprox., totalmente rastreable)
Número de seguimiento proporcionado
Envío exprés (5 a 9 días hábiles aprox., totalmente rastreable) Número de seguimiento proporcionado
Confirmación de envío y seguimiento del pedido:
Recibirá un correo electrónico de confirmación de envío una vez que se haya enviado su pedido, con su(s) número(s) de seguimiento. El número de seguimiento se activará en 24 horas.
Aduanas, aranceles e impuestos:
Cabochons4sale no se responsabiliza de los aranceles ni impuestos aplicados a su pedido. Todos los cargos aplicados durante o después del envío son responsabilidad del cliente (aranceles, impuestos, etc.).
Política de envíos internacionales:
Actualmente realizamos envíos a la mayoría de los países. Si su país no aparece en la lista al finalizar la compra, contáctenos para consultar las opciones de envío.
Let customers speak for us
MÁS DE 26 AÑOS EN EL NEGOCIO
LA EXCELENCIA ESTÁ EN NUESTRO CORTE
Desde cabujones atemporales hasta cortes brillantes, hemos dedicado décadas a dominar el arte de la artesanía de las piedras preciosas, guiados por la integridad, la precisión y un profundo amor por el mundo natural.
