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Stoney Bracelets
Since 2019 we have been making handmade gemstone bracelets for more than 20,000 customers. Every stone is hand selected in our own atelier.

Obsidian is in the top 10 of our most ordered bracelets, and that is no accident. It is not a classic gemstone but pure volcanic glass: deep black, smooth and quieter than any other dark stone. If you are wearing black for the first time, this is where you start. In our obsidian bracelet collection it is the base most stacks get built around.

Obsidian stone bracelet with hematite on the wrist, deep black volcanic glass in daylight
Obsidian next to hematite. The black glass swallows light, the hematite throws it back.
Obsidian in numbers
Colour Deep black, glossy or matte
Hardness (Mohs) 5 to 5.5
Type Volcanic glass

What makes obsidian different from other black stones

Strictly speaking obsidian is not a mineral but a natural glass. It forms when silica rich lava cools so fast that there is no time for crystals to grow. What is left is an amorphous, glassy mass with no crystal structure. That sets it apart from almost every other stone we use: hematite, tiger eye and larvikite all have a crystal lattice, obsidian does not.

You can see that glass character in the way it breaks. Obsidian fractures in shell-like curves with razor sharp edges, which is exactly why it was prized for blades and arrowheads in antiquity. On a bracelet that translates into a smooth, flowing shine no crystal stone can copy. If you want to see how it sits next to the other dark options, read our guide to the black stack for men.

01
Volcanic glass
Formed from rapidly cooled lava with no crystal growth. An amorphous stone, unique in a collection that otherwise consists of crystal stones.
02
Mohs 5 to 5.5
Softer than quartz. Fine for daily wear, but more scratch prone than tiger eye or hematite. Store it separately and take it off for rough work.
03
Glassy shine
A smooth, flowing reflection no crystal stone matches. In the matte version that same stone swallows light instead.
04
Works for anyone
Deep black reads serious and clean rather than decorative. That is why obsidian sits as well on men as on women.

Glossy versus matte obsidian

The biggest decision with obsidian is not the stone but the finish. Glossy obsidian is polished to a mirror surface that throws light back and gives the black extra depth. Matte obsidian is the same stone, finished to a velvet matte surface that absorbs light instead. That difference decides entirely how the bracelet reads.

Glossy obsidian draws the eye and works as a quiet statement, especially in 8mm. Matte obsidian is the choice if you want black with no shine at all, and it disappears more easily under a cuff or a watch. In practice many customers take both: glossy and matte obsidian side by side is one of the ten pairings most often ordered together with us.

Matte obsidian bracelet with gold tiger eye on the wrist, velvet matte black finish
Matte obsidian next to gold tiger eye. The matte finish swallows light and keeps the black calm.

The four strongest combinations with obsidian

Because obsidian is a neutral, deep base, it combines with almost anything. Four stacks still stand out in practice.

Obsidian and hematite
The classic Silver accent
Deep black glass next to a sharp mirror shine. The obsidian brings calm, the hematite adds a metallic accent that reads like silver without you actually wearing silver. Works with a steel watch and with a smartwatch.
View hematite
Obsidian and gold tiger eye
Black and warm For dark clothing
The warm golden brown glow of tiger eye jumps out against deep black. This is the stack that works hardest over black knitwear, dark denim and a gold or bronze watch.
View tiger eye
Matte obsidian and larvikite
Matte on schiller For a clean look
Matte obsidian swallows light completely, larvikite sends its blue silver schiller back. This is the stack for wearing black without it looking like a uniform. Strong with grey, navy and off white.
View larvikite
Obsidian and matte obsidian
Shine and matte Often ordered together
The same stone in two finishes. The glossy bracelet catches light, the matte one swallows it, and together they give depth without needing a second colour. One of our ten most frequent pairings.
View obsidian
Obsidian and gold tiger eye bracelets stacked, editorial studio photography
Obsidian and tiger eye stacked: warm gold against deep black volcanic glass.

Obsidian is the stone you start with and the one you keep coming back to.

Stoney atelier

Which size and beads work best

With obsidian the bead size decides how much the shine shows. In 8mm glossy obsidian reflects more clearly and reads as a quiet statement. In 6mm it calms down and stacks more easily in a trio. People who wear obsidian on its own tend to pick 8mm, while 6mm works better in a stack of three. Our bracelets come in the fixed sizes Small, Medium, Large and X-Large. If you are unsure, our guide to 6mm or 8mm takes you through it.

Combination Recommended size Watch match
Obsidian on its own 8mm for deep shine Steel, black leather, smartwatch
Obsidian and hematite 8mm for both, for balance Silver or steel
Obsidian and gold tiger eye 8mm tiger eye, 6mm obsidian Gold or bronze
Matte obsidian and larvikite 6mm or 8mm, the same for both Matte black, gunmetal
Obsidian in a three stack 6mm for proportion Slim or classic

Obsidian meaning: protection and grounding

Obsidian has long been treated as a shield stone. Wearing it is said to keep outside negativity at a distance and to settle you down faster, and in many traditions it is used for letting go of old patterns. That is folklore, not a proven effect. What is certain: the stone is deep black, cool against the skin and heavy enough that you notice you are wearing it. For a lot of people that alone makes it a quiet point on the wrist. For the symbolism of other stones, read our guides to tiger eye and amethyst.

How to spot real obsidian

Black glass is easy to imitate, so watch for a few things. Real obsidian feels cool and warms up slowly in your hand. Held against a lamp you often see a thin, greyish translucence at the edges, and no two beads are exactly alike. Perfectly identical, completely opaque beads with small air bubbles are the suspicious ones and may be dyed glass. At Stoney we select the beads ourselves on colour and finish. To see how it differs from the other black stones, read our comparison of black gemstones and our guide to onyx.

Care: what obsidian is sensitive to

Obsidian is structurally stable but softer than most stones hanging next to it. At 5 to 5.5 on the Mohs scale it scratches sooner than quartz, tiger eye or hematite. And because it is glass, a hard knock against stone or concrete can chip it. A few simple habits keep it sharp for years.

  • Take the bracelet off before you shower, swim or use a sauna
  • Spray perfume first, put the bracelet on afterwards
  • Store it apart from harder stones such as tiger eye and quartz to avoid scratches
  • Avoid hard knocks against stone, concrete or metal: glass can chip
  • Polish with a soft, dry microfibre cloth, never an ultrasonic bath
Verdict

Obsidian is the best starting stone there is: neutral, deep and endlessly combinable. Pick glossy for quiet attention, matte for maximum calm. Pair it with hematite for a silver accent, or with its matte counterpart for depth. Treat it like glass, avoid hard knocks and store it separately, and it stays good for years.

Obsidian collection

The foundation of every stack

Deep black volcanic glass, hand selected and strung in our own atelier. The stone you keep coming back to.

Shop obsidian 20,000+ customers · 1,800+ reviews · 4.8 average

Frequently asked questions

What kind of stone is obsidian?+
Obsidian is not a classic mineral but natural volcanic glass. It forms when silica rich lava cools so fast that no crystals can grow. As a result the stone has no crystal structure, just a smooth, glassy mass with a flowing shine.
Is obsidian hard enough for daily wear?+
Yes, with a little care. Obsidian sits at 5 to 5.5 on the Mohs scale, softer than quartz or hematite. It is fine for everyday use, but it scratches sooner and can chip on a hard knock. Take it off for sport or rough work and store it separately.
What is the difference between glossy and matte obsidian?+
The same stone with a different finish. Glossy obsidian is polished to a mirror surface that throws light back and gives the black depth. Matte obsidian is finished velvet matte and absorbs light instead. Glossy stands out more, matte is the quieter choice.
Which stones go best with obsidian?+
Obsidian with hematite is strong, because the mirror shine of hematite reads as a silver accent. For a warm contrast gold tiger eye works well, and matte obsidian with larvikite gives a restrained matte on schiller stack for anyone who wants to keep it clean.
Can obsidian go in the shower?+
No. The stone itself is water resistant, but the elastic cord does not like hot water and soap. Shower gel and shampoo can also dull the shine over time. Take the bracelet off before you shower, swim or train.
What does obsidian mean?+
Obsidian has long been treated as a shield stone: a stone for protection, grounding and letting go of old patterns. That is folklore, not a proven effect. Most people wear it for its calm, deep black look.
How do you know if obsidian is real?+
Real obsidian feels cool and warms up slowly. Held against light it often shows a greyish translucence at the edges, and no two beads are identical. Perfectly matched, opaque beads with air bubbles may be dyed glass.
Is an obsidian bracelet for men or for women?+
Both. Deep black reads clean and serious, so obsidian suits men and women alike. In 8mm it stands out more, in 6mm it is finer and stacks more easily.
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