Onyx Tennis Bracelet 4mm Black
Onyx Tennis Bracelet 4mm Black
The Onyx Tennis Bracelet 4mm Black is an all black tennis bracelet for men: one unbroken line of onyx-black cubic zirconia, round brilliant-cut and set stone by stone in black-plated prongs, on a black-plated band that closes with a box clasp and a double safety latch. Black stones on black metal give the black diamond look in its most stealthy form, for $69.
This is jewelry for men who do not wear jewelry. From across a room it reads as one dark line on the wrist, a silhouette rather than a sparkle. Up close the stones show their facets as hard, glossy points against the gunmetal black band, and only then does it reveal itself as a tennis bracelet. It follows the same logic as a blacked-out watch or a matte-black car: remove the color, and the shape does all the talking.
No guessing on size. Many shops sell tennis bracelets by chain length and leave the math to you; Caligio sizes are wrist sizes with the fit already built in. Small fits wrists up to 6.8 inches, Medium up to 7.2, Large up to 8. Medium fits most men, which also makes it an easy gift.
Care for it like fine jewelry: off before the shower, the pool, and the gym, on after perfume and lotion, and the black finish stays deep. Nickel-free and lead-free, gift-boxed, designed in Los Angeles. The same stones framed in bright metal are the Onyx Tennis Bracelet 4mm and the Onyx Tennis Bracelet 4mm Gold, and the full line lives in the Tennis Bracelet collection.
The Onyx Tennis Bracelet 4mm Black is an all black tennis bracelet for men: one unbroken line of onyx-black cubic zirconia, round brilliant-cut and set stone by stone in black-plated prongs, on a black-plated band that closes with a box clasp and a double safety latch. Black stones on black metal give the black diamond look in its most stealthy form, for $69.
This is jewelry for men who do not wear jewelry. From across a room it reads as one dark line on the wrist, a silhouette rather than a sparkle. Up close the stones show their facets as hard, glossy points against the gunmetal black band, and only then does it reveal itself as a tennis bracelet. It follows the same logic as a blacked-out watch or a matte-black car: remove the color, and the shape does all the talking.
No guessing on size. Many shops sell tennis bracelets by chain length and leave the math to you; Caligio sizes are wrist sizes with the fit already built in. Small fits wrists up to 6.8 inches, Medium up to 7.2, Large up to 8. Medium fits most men, which also makes it an easy gift.
Care for it like fine jewelry: off before the shower, the pool, and the gym, on after perfume and lotion, and the black finish stays deep. Nickel-free and lead-free, gift-boxed, designed in Los Angeles. The same stones framed in bright metal are the Onyx Tennis Bracelet 4mm and the Onyx Tennis Bracelet 4mm Gold, and the full line lives in the Tennis Bracelet collection.
Silhouette instead of sparkle
Every other tennis bracelet in the line is built on contrast: clear or colored stones framed by bright metal. This one removes the contrast entirely. With black stones set in black metal, the eye stops separating stone from setting and starts reading the line as one continuous shape. From a distance it is a dark band on the wrist. Close up, the facets catch light as small glossy points against the darker metal, a texture more than a shine. It is the tennis bracelet for a man who wants the piece without the attention.
The black diamond look, stated honestly
The stones are black cubic zirconia, lab-created and cut with round brilliant facets, not black diamonds and not onyx. The band is brass with a black plating. A men's black diamond tennis bracelet in solid metal costs hundreds to thousands; this one carries the same all-black line for $69, and it says so on the page.
The clasp is the security
A tennis bracelet has nothing to catch it if the closure fails: no safety chain, no elastic, no cord. This one closes with a black box clasp and a double safety latch. The tongue clicks into the box, then two side levers fold down over the join and lock it a second time. It opens only with a deliberate press on the levers, and closed it disappears into the line.
Where it sits in your rotation
Black metal belongs beside black metal: a black-cased watch, a black leather or rubber strap, a matte black ring. It also sits cleanly with a white T-shirt, where it reads as one sharp line. For an all-black stack in a second texture, the Anchor Chain Black & Black runs the same idea in chain and cord. For the same stones framed in bright metal, the Onyx Tennis Bracelet 4mm or the Onyx Tennis Bracelet 4mm Gold. The full line lives in the Tennis Bracelet collection.
Designed in Los Angeles since 2020. Ships gift-boxed.
| Product | Onyx Tennis Bracelet 4mm Black - all black tennis bracelet for men |
| Type | Tennis bracelet, one continuous line of stones with no centerpiece |
| Stones | Onyx-black round brilliant-cut cubic zirconia, one per setting |
| Not a gemstone | The black diamond look in lab-created CZ, not black diamond or onyx |
| Setting | Black-plated prong setting, each stone in its own link so the line flexes and lies flat |
| Metal | Brass base with gunmetal black plating |
| Skin-friendly | Nickel-free and lead-free |
| Width | 4mm, the classic men's tennis bracelet width |
| Clasp | Black box clasp with a double safety latch. Two side levers lock over the join |
| Sizes | Small, wrists up to 6.8 in. Medium, up to 7.2 in. Large, up to 8 in |
| No guessing | Sizes are by wrist, not bracelet length. Measure the wrist and choose, nothing to add |
| Best-fitting size | Medium fits most men. Small fits most women |
| Everyday care | Take it off before the shower, the pool, and the gym to keep the black finish deep |
| Wears with | Black-cased watch, black leather or rubber strap, matte black rings, white T-shirt |
| Also in | Rhodium and gold |
| Collection | Tennis Bracelets |
| Designed in | Los Angeles, California |
| Packaging | Gift box with Caligio pouch bag |
Care for it like fine jewelry
The band is brass finished with black plating, and plating keeps its depth longest when it stays dry. So the one habit worth building is simple: take the bracelet off before the shower, the pool, and the gym, and put it on after perfume, lotion, and sunscreen. Two seconds a day keep the black deep and even.
Keeping the black even
On an all-black piece the enemy is not dirt but friction. The edges that rub against a desk, a watch case, or another bracelet are where any plating shows wear first. Wearing it on the wrist opposite your watch, or stacking it only with softer pieces like leather and cord, keeps the finish uniform. Fingerprints on the glossy stones wipe away with a dry, lint-free cloth.
The clasp
The box clasp and its two side levers are the only moving parts. Press the tongue in until you feel the click, then fold both levers down flat. To open, lift the levers and release the tongue instead of pulling on the stone line.
Care
- Take it off before the shower, the pool, the gym, and the beach.
- Put it on last, after perfume, lotion, and sunscreen.
- Wipe with a dry, soft, lint-free cloth. No polishing pastes, jewelry dips, or abrasive cloths, which can wear through the black plating.
- If it gets wet, pat it dry right away.
- Avoid ultrasonic cleaners, which can loosen a prong.
- Close the clasp before storing, and keep it in the Caligio pouch bag, away from harder pieces that could scuff it.
Skin
The bracelet is nickel-free and lead-free, the two metals most often behind jewelry reactions. Keeping it dry also keeps the black plating intact over the brass base, which is what keeps it comfortable on the skin.
What is an all black tennis bracelet?
A tennis bracelet where both the stones and the metal are black. This one sets round brilliant-cut black cubic zirconia in black-plated prongs on a 4mm band, so the whole piece reads as one dark line, the black diamond look in its most understated form, at $69.
Are these black diamonds?
No. The stones are lab-created black cubic zirconia with the black diamond look. Natural black diamond tennis bracelets start in the hundreds and run into the thousands; this gives the same all-black line for $69, and the page says so.
Is an all black bracelet good for a man who does not wear jewelry?
It is the best first piece for exactly that man. With no bright metal and no colored stones, it reads as a dark band rather than as jewelry, the same way a blacked-out watch reads as a tool rather than an ornament. It adds something to the wrist without drawing attention to it.
Does an all black tennis bracelet sparkle?
Quietly. Black stones shine from their surface rather than throwing rainbow fire, and against black metal that shine becomes a texture: small glossy points you notice up close, not from across the room. If you want more sparkle, the silver or gold Onyx sets the same stones in bright metal.
What goes with an all black tennis bracelet?
Black metal and dark clothes: a black-cased watch, a black leather or rubber strap, black knitwear, charcoal, and black denim. Against a white T-shirt it becomes one sharp line. Avoid a polished steel or gold watch on the same wrist, which turns a stealth piece into a contrast piece.
Silver, gold, or all black?
All black is the stealth version, one dark line with no contrast. Silver sets the same black stones in bright rhodium plating for the highest contrast, and gold frames them in warm metal for the evening. Same 4mm width, same clasp.
What size tennis bracelet should I get?
Choose by wrist, not by bracelet length. Caligio sizes already include the fit: Small is for wrists up to 6.8 inches, Medium up to 7.2, Large up to 8. There is nothing to add or guess. Medium fits most men, Small fits most women.
Will a tennis bracelet fall off?
A tennis bracelet has no safety chain, so the clasp does all the work, and this one locks twice. The tongue clicks into a black box clasp, then two side levers fold over the join as a double safety latch. It opens only with a deliberate press.
Can I shower with it on?
Better not. Like most fine plated jewelry, it keeps its finish longest when it stays dry, so take it off before the shower, the pool, and the gym. It is a two-second habit that keeps the black deep and even for years.
Will the black finish wear off?
It holds up well with normal care. Any plating wears first where it rubs, so keep the bracelet dry, off lotion, and away from harder metal: wear it on the wrist opposite your watch, or stack it with leather and cord. The bracelet is nickel-free and lead-free, and intact plating keeps the brass base away from the skin.
What watch goes with an all black bracelet?
A black-cased watch, or any watch on a black leather or rubber strap. Black metal belongs beside black metal. On the opposite wrist from a steel or gold watch it also works, because the two pieces never touch and never compete.
Why is it called a tennis bracelet?
From the 1987 US Open, where American player Chris Evert's diamond line bracelet came off mid-match and play was paused while she recovered it. Until then the style was called an eternity or line bracelet, and the press renamed it for good.
Is it a good gift?
The safest tennis bracelet to give a man who rarely wears jewelry, because it never looks like too much. The sizes are by wrist, Medium fits most men, and it arrives in a Caligio gift box ready to hand over.
To define the correct sizing of your wrist, we highly recommend using a tape measure and measuring the circumference of your wrist just above the hand. However, if you do not have a special measure, use a small piece of tape or a cord. Wrap it around your wrist and measure the length against a ruler.
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Wrist size inch / cm |
| SMALL |
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6.7 - 7.1 inch / 17-18 cm |
| LARGE |
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Need XL? Check our XL Collection
Plenty of Caligio’s Cuff bracelets are adjustable and comfortably fit most of the standard wrist sizes. Slip-on cuff bracelets sizes are easily increased and decreased with bare hands. Keep in mind that the wrist size is not the same as the length of a bracelet. Still, need help? Email us at: support@caligio.com.
Calligio provides a FREE Standard Shipping delivery for all US orders above $50. International customers from countries/regions including Canada, United Kingdom, Europe and Australia get a free delivery starting from $150 orders.
Your orders are picked, packed, and shipped the same day from Los Angeles, California. The products ordered after 2PM PST are shipped the very next working day. The shipping department is on duty Monday through Saturday, excluding holidays.
Once your order has been processed, you will receive an email with your tracking number that allows you to check the order’s location. You have up to 2 hours after placing an order to request editing or canceling the order by writing to email support@caligio.com
Make sure to pick up your order in time to avoid any negative carry-outs after the product is delivered, as Caligio doesn’t take any responsibilities for orders after the status changes to Delivered. However, if you are worried about your orders getting wrongly delivered or stolen - opt for Standard Delivery + Priority Processing & Shipping Insurance for just $9.99 US only to secure a free replacement for all unreceived products.
Please note that the below-mentioned delivery timings are taken from the official websites of the delivery providers and may vary depending on the carriers delivery speed. International orders may be applicable for local taxes on top of the delivery costs.
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$5.99 | 3-5 Business Days |
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$9.99 | 1-3 Business Days |
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US -USPS Standard Delivery + Priority Processing & Shipping Insurance. |
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3-5 Business Days |
| Canada - Standard Delivery | $19.99 | 7-18 Business Days |
| Europe - Standard Delivery | $19.99 | 7-18 Business Days |
| UK & Ireland - Standard Delivery | $19.99 | 7-18 Business Days |
| Australia - Standard Delivery | $19.99 | 7-18 Business Days |
Please note, sometimes delivery providers may come up with a shipment delay due to the restrictions issued by countries' governments in these challenging times. Therefore, there may be cases when the package arrives several days after you receive a delivery notification.
If you ordered the wrong size, color, or simply would like to return the product, you can do so within 30 days from the delivery date. To be eligible, the item must be unworn and in its original packaging, free from any odors (deodorant, perfume), stains, or signs of wear. The original gift box and velvet pouch must be included - returns without original packaging will not be accepted. Please note that a $9.99 shipping and handling fee applies to all domestic returns and will be deducted from the amount refunded.
Once your return is approved, please send the item(s) back within 7 days.
For exchanges within the US, your first exchange is completely free and will be dispatched within 5 business days after we receive and inspect the item. Subsequent exchanges are at the customer's expense.
For international customers, returns and exchanges are handled on a case-by-case basis. Due to the complexity of international shipping, please contact us at support@caligio.com and our team will guide you through the process and find the best solution for you.
We do not process returns or refunds for final sale(special price) items, bundles, Buy 2 Get 1 Free offers, or promotional deals with discounts of 20% or more.
For any questions, contact us at support@caligio.com.

