Tessa Vaughn
★★★★★
Matte enough for the office
Polished but not mirror shiny. Nobody at work even mentions it, which is exactly what I wanted. Love this thing.
Verified purchase · 3 weeks ago
MERENUS
The Rail — Black Onyx Bracelet (4mm)
Your wrist size (in or cm)
Size & fit
- Wrap a soft tape around your wrist — just above the wrist bone, the spot a bracelet sits on. No soft tape? A strip of paper works the same way.
- Keep it snug — touching the skin, not pulled tight.
- Read the number where the tape meets. In the picture above that reads 7.25 in (18.4 cm) — that number is your wrist size. Inches or centimeters, either is fine.
Measure your wrist, not a bracelet you already own.
One size fits wrists 6.5–8 in (16.5–20 cm) — 97% of people. Not sure? Leave the box blank and we'll send the standard fit. Add a measurement only if you want it made to yours.
No measuring needed
You can't measure someone else's wrist — and with these bracelets you don't have to. Every piece is strung by hand on durable elastic, made to one size that fits wrists from 6.5 in to 8 in (16.5–20 cm): 97% of people. It slips over the hand and settles comfortably, so the gift fits even when you are guessing.
Leave the wrist size box blank and we send the standard fit, in a matte-black gift box with a suede pouch. No size to pick, nothing to get wrong.
If it somehow isn’t right, returns and exchanges are free within 30 days — email us and we’ll send a prepaid label.
Made to order by hand — ships in 1–2 business days, then 5–9 business days in transit.
Description
Solid, even black with no variation from bead to bead. Cut to 4mm beads, strung on elastic and finished with Natural Stone, Glass, Stainless Steel. Natural stone, so expect small differences in color and marking between beads.
- Gemstone Black Onyx
- Bead size 4mm
- Metal material Natural Stone, Glass, Stainless Steel
- Bracelet type Elastic
- Stone meaning Strength · Focus · Self-command
- Chakra & sign Root · Leo
Shipping & returns
Each piece is made to order by hand in 1–2 business days, then spends 5–9 business days in transit. Shipping is free, always, with no minimum. Not quite right? Returns are free within 30 days — email support@merenus.com and we'll send a prepaid return label. No restocking fees.
$50.00
The Rail — Black Onyx Bracelet (4mm)
The Rail — Black Onyx Bracelet (4mm)
About Black Onyx
Customer reviews
4.828 reviews
Marisol Vega
★★★★★
Genuinely slim
Disappears under a shirt cuff, zero bunching. Exactly what I wanted for work. Nothing bad to say.
Verified purchase · Jun 2026
Andre T.
★★★★☆
Took a day or two to get used to
Felt foreign at first, completely normal by day three. Worth knowing going in. Ordering another for sure.
Verified purchase · Apr 2026
Peter N.
★★★★★
My wife changed her mind
She thought it looked too plain online, then I put it on and she took it back.
Verified purchase · 6 weeks ago
SHOP WITH CONFIDENCE
Read the full policy
30-day returns, guaranteed
If it isn't right, send it back within 30 days for a full refund. Keep the piece unworn, with the seal and the original packaging intact, and we'll email you a prepaid return label. No restocking fee, no back-and-forth.
Frequently asked questions
A few things people ask before they buy. For the full list, see our FAQ page.
Are the stones genuine?
Yes. Every bracelet is cut from natural stone — obsidian, black tourmaline, tiger's eye, aventurine, lapis lazuli, dumortierite and garnet. Nothing is dyed, reconstituted or synthetic. Because the material is natural, color and veining shift from bead to bead; that variation is the point, not a flaw.
What is your return policy?
30 days from delivery, unworn and in the original packaging. Email us for a prepaid label, send it back, and we refund your original payment method the day it reaches us. From there it's your bank's move — refunds usually post within 5–10 business days, depending on who you bank with. Full policy here.
Will mine look exactly like the photo?
Close, but not identical — and that's the better outcome. Natural stone has no two identical beads: the banding in tiger's eye, the flecks in lapis, the depth of black in obsidian all shift from piece to piece. The strand you get is the only one like it, and nobody else will have it. We photograph real stock, not renders, so what arrives lands inside the range you see.
Is it gift-ready?
Yes. Every bracelet arrives in a matte-black gift box with a suede pouch, ready to hand over as-is — no extra wrapping needed.
