Obsidian Crossfire Heart onyx necklace
Handcrafted with natural black onyx gemstones, glossy resin, and stainless-steel chains, it features a striking heart centerpiece wrapped in industrial ball chains and armed with metallic spikes — symbolizing strength, rebellion, and protection.
Black onyx is known for its grounding energy and power to absorb negative emotions, making this piece not only visually bold but spiritually empowering.
Its layered structure and heavy chain give it a sculptural edge — perfect for those who thrive in the contrast between elegance and danger.
Available Sizes:
- Size S: approx. 30cm + 5cm extension
- Size M: approx. 35cm + 5cm extension
- Size L: approx. 40cm + 5cm extension
- Size XL: approx. 45cm + 5cm extension
About 666999
About 666999
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Charmskool FAQs
Find our most commonly asked questions, or if you have more see our full FAQs here
What if I don’t see my size offered?
What if I don’t see my size offered?
The beauty of everything on Charmskool is that each piece is crafted to order just for you- which means designers can not only advise you on which size is best, usually offer tailor made sizing and design alterations to accommodate your unique shape- just reach out using the ‘Message The Designer’ button, they’ll be happy to help!
When will my item be delivered?
When will my item be delivered?
As a handmade marketplace, each of our designers have their own production schedule, so processing times can vary from item to item.
You'll find the estimated production time on each product page. If you need an item by a specific date, you can also filter products by processing time while browsing. Alternatively, use the "Message The Designer" button on the product page to contact the designer directly. In some cases, they may be able to complete your order sooner than the estimated timeframe.
Do you accept returns?
Do you accept returns?
Generally, due to the handmade-to-order nature of the products, returns are not accepted. However, please do check the designer’s specific return policy in their bio. If an item is faulty, not as described or you are unhappy please reach out to the designer using the ‘Message The Designer’ button, or drop us an email on info@charmskoolshop.com
Do you offer custom styles and designs?
Do you offer custom styles and designs?
Yes! Most designers are happy to create something bespoke, and make your dreams come true. Just reach out using the ‘Message The Designer’ button to start a conversation about a special piece.

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