PHOTOS ARE OF ACTUAL PRODUCT FOR SALE
Natural Petroleum Quartz Gemstone Cabochon | Rare Fluorescent Loose Quartz for Jewelry Making | Collector Stone
Natural Petroleum Quartz Gemstone Cabochon | Rare Fluorescent Loose Quartz for Jewelry Making | Collector Stone
Shipping Policy
Flat 5 usd shipping worldwide (add unlimited stones). We now offer DDP(Duty Paid) shipping to the USA. Ensuring zero extra tariffs. NO surprise charges on delivery.
Processing Time:
All orders are processed within 1-3 business days approx. Orders are not shipped or delivered on weekends or holidays. If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in the shipment of your order, we will contact you via email.
Shipping Rates & Delivery Estimates:
Shipping charges for your order will be calculated and displayed at checkout. Delivery times vary based on the shipping method chosen and the destination.
Standard Shipping: 10 to 14 business days approx (postals, xpressbees)
Express Shipping: 5 to 9 business days approx
Please note that delivery delays can occasionally occur, especially during peak seasons.
PRICE is flat 5 USD for regular shipping (add as many stones as you want in the order)
PRICE is flat 25 USD (express)
Regular Shipping ( 10 to 14 working days approx, Fully Trackable)
Tracking number provided
Express Shipping ( 5 to 9 working days approx., Fully Trackable) Tracking number provided
Shipment Confirmation & Order Tracking:
You will receive a Shipment Confirmation email once your order has shipped, containing your tracking number(s). The tracking number will be active within 24 hours.
Customs, Duties, and Taxes:
Cabochons4sale is not responsible for any customs and taxes applied to your order. All fees imposed during or after shipping are the responsibility of the customer (tariffs, taxes, etc.).
International Shipping Policy:
We currently ship to most of the countries. If your country is not listed at checkout, please contact us to discuss possible shipping options
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. |
Couldn't load pickup availability
0% Tariff
Zero Tariffs, & Zero Surprises.
Free Drilling
Free Drilling, No Extra Cost. Click to see chart.
Stone Same As Picture
What You See Is Exactly What You Get.
True Details
Real Stones. Real Trust.
Worldwide Shipping
Fast Shipping with Tracking
Bring an unusual piece of mineral beauty to your collection with our Natural Petroleum Quartz Gemstones. Known for their fascinating internal character and distinctive appearance, Petroleum Quartz is especially appreciated by collectors, jewelry artists, and designers looking for quartz with something genuinely different about it.
Depending on the individual specimen, natural Petroleum Quartz can reveal intriguing inclusions and visual effects that create depth beneath the polished surface. Each stone is naturally unique, with variations in transparency, internal features, color, and overall character.
A Unique Choice for Jewelry & Collections
Petroleum Quartz can be used for:
- Statement Pendants
- Custom Rings
- Earrings
- Artistic Jewelry
- Wire-Wrapped Designs
- Collector Jewelry
- Mineral Collections
- Designer Gemstone Projects
- One-of-a-Kind Creations
- Display Pieces
Carefully Crafted in Our Own Manufacturing Unit
We don't simply source finished stones. Our experienced team works with gemstone material in our own manufacturing unit, where each selected piece is carefully shaped and polished to reveal its natural visual character.
Our skilled artisans understand how to work with individual pieces rather than treating every gemstone identically. This helps us preserve the distinctive inclusions and internal features that make Petroleum Quartz so appealing.
✓ Carefully selected natural gemstone material
✓ Distinctive internal inclusions and character
✓ Expertly cut and polished in our own facility
✓ Smooth professional finish
✓ Tested through an authentic gemological laboratory
✓ Inspected by our dedicated quality-control team
✓ Individually checked before dispatch
✓ Multiple options available for different projects
20+ Years of Gemstone Experience
Our team includes expert gemologists and experienced artisans with more than 20 years in the gemstone industry. Their knowledge covers gemstone selection, cutting, shaping, polishing, inspection, and finishing.
Every stage is handled with care because we believe a quality gemstone should be supported by quality workmanship and dependable service.
Why Petroleum Quartz?
If you're searching for something beyond ordinary quartz, Petroleum Quartz offers an intriguing combination of natural inclusions, depth, character, and collector appeal. Its unusual appearance makes it especially interesting for artists creating jewelry that feels different from conventional gemstone designs.
Shipping Made Easy
Only $5 delivery — add as many stones as you want to your order with no additional shipping charge for extra gemstones.
• Secure protective packaging
• Smooth worldwide delivery
• Careful handling during dispatch
• Quality inspection before shipment
• Professional customer support
• Multiple stones can ship together
From a distinctive jewelry centerpiece to a mineral collection, our Petroleum Quartz gemstones are prepared with experienced craftsmanship and attention to detail.
Flat 5 usd shipping worldwide (add unlimited stones). We now offer DDP(Duty Paid) shipping to the USA. Ensuring zero extra tariffs. NO surprise charges on delivery.
Processing Time:
All orders are processed within 1-3 business days approx. Orders are not shipped or delivered on weekends or holidays. If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in the shipment of your order, we will contact you via email.
Shipping Rates & Delivery Estimates:
Shipping charges for your order will be calculated and displayed at checkout. Delivery times vary based on the shipping method chosen and the destination.
Standard Shipping: 10 to 14 business days approx (postals, xpressbees)
Express Shipping: 5 to 9 business days approx
Please note that delivery delays can occasionally occur, especially during peak seasons.
PRICE is flat 5 USD for regular shipping (add as many stones as you want in the order)
PRICE is flat 25 USD (express)
Regular Shipping ( 10 to 14 working days approx, Fully Trackable)
Tracking number provided
Express Shipping ( 5 to 9 working days approx., Fully Trackable) Tracking number provided
Shipment Confirmation & Order Tracking:
You will receive a Shipment Confirmation email once your order has shipped, containing your tracking number(s). The tracking number will be active within 24 hours.
Customs, Duties, and Taxes:
Cabochons4sale is not responsible for any customs and taxes applied to your order. All fees imposed during or after shipping are the responsibility of the customer (tariffs, taxes, etc.).
International Shipping Policy:
We currently ship to most of the countries. If your country is not listed at checkout, please contact us to discuss possible shipping options
Let customers speak for us
OVER 26 YEARS IN BUSINESS
THE EXCELLENCE IS IN OUR CUTTING
From timeless cabochons to brilliant cuts, we’ve dedicated decades to mastering the art of gemstone craftsmanship — guided by integrity, precision, and a deep love for the natural world.
