Name: 316L Onyx Ring [B&C]
Brand: Black Claw
SKU: C20
Price: 96.0 USD
Availability: InStock

$96.00

Tax included. Shipping calculated at checkout.

Flat rate shipping ¥500 (Free for orders over ¥20,000)

Low stock - 1 item left
Backordered, shipping soon

Medical 316L Surgical Stainless Steel | Hypoallergenic

Sauna, ocean, and weight training OK｜Wear it 24/7

Black Onyx brings a quiet depth to your fingertips.

The jet black onyx at the center creates an elegant presence.

Available in 5 sizes, from USA6 to USA10. From formal to daily wear.

◆

316L Surgical Stainless Steel

Also used for medical instruments

◆

Hypoallergenic

Safe for sensitive skin

◆

Water and Sweat Resistant

No need to take off in sauna or at the beach

◆

Black Onyx

Deep, jet-black luster

Product Story＋

A jet-black stone, giving your fingertips a quiet presence.

A ring with a refined silhouette, featuring a black onyx at its center. The deep, jet-black stone brings a quiet presence to your fingertips.

Onyx has long been considered a stone symbolizing "protection from evil," "determination," and "confidence," and is said to bring calm strength to its wearer. This ring, simple yet exuding definite elegance, is perfect for a man's finger.

The base is made of 316L surgical stainless steel, a material excellent in corrosion resistance and low in metal allergy risk. You can wear it without worry in the sea, bath, or sauna.

Available in 5 sizes, from USA6 (approx. Japanese size 11) to USA10 (approx. Japanese size 20). The model is wearing USA8. This ring is versatile, suitable for formal occasions to daily wear.

Product Specs＋

Material316L Surgical Stainless Steel
Center StoneBlack Onyx
SizeUSA6 / 7 / 8 / 9 / 10
Approx. Japanese Size11 / 13 / 16 / 18 / 20
ColorSilver
Model WearingUSA8

Materials & Care＋

Care instructions to ensure long-lasting use

Wipe gently with a soft cloth
If dirty, wash with lukewarm water diluted with mild detergent and wipe thoroughly dry
Recommended to store individually to avoid scratching other accessories

Things to Avoid
Prolonged wear in hot springs/chlorinated pools / Direct contact with cosmetics/perfumes / Strong impacts/drops / As onyx is a natural stone, it may crack from strong impacts

Size & Fit＋

Available in 5 sizes: USA6 (approx. Japanese size 11), USA7 (approx. Japanese size 13), USA8 (approx. Japanese size 16 / model wearing), USA9 (approx. Japanese size 18), USA10 (approx. Japanese size 20). This wide range of sizes allows it to be worn on the middle, ring, or index finger.

View Size Guide View FAQ

Shipping & Returns＋

Shipping Cost: ¥500 nationwide (Click Post) / Free shipping for purchases over ¥20,000
Shipping: Within 3 business days after order confirmation
Delivery: Approximately 2-4 days after mailing
Tracking: A tracking number will be sent via email upon shipment

Returns & Exchanges
・Defective/Incorrect Delivery: Covered by us (within 7 days of arrival)
・Customer Convenience: Only for unused items with all accessories (return shipping cost borne by customer)
・Metal Allergy: Returns accepted within 14 days of wear

Please feel free to contact us with any questions.

Official LINE / Store inquiry form
Email: blackclawjp@gmail.com
Business Hours: Weekdays 10:00〜18:00

The deep black brings tranquility to your fingertips.
BLACK CLAW, 316L Onyx Ring【B&C】.

◆ Made exclusively from 316L surgical stainless steel and S925 silver, also used in medical devices.
◆ Highly resistant to rust, tarnish, and scratches, making it safe to wear in saunas, at the beach, or during workouts.
◆ Relatively safe for those with metal allergies to wear.
◆ All products are inspected and delivered in a BLACK CLAW original box.

◆ We will accept returns and exchanges for defective products or incorrect deliveries at our expense.
◆ If you experience a metal allergy, we will accept returns within 14 days of wear.
◆ Returns due to customer preference are accepted only if the item is unused and all accessories and packaging are included (return shipping costs are borne by the customer).
◆ For size consultations, please feel free to contact us via our official LINE account or inquiry form.

◆ Ships within 3 business days.
◆ Nationwide flat rate shipping of ¥500 / Free for purchases over ¥20,000 (Click Post, with tracking number)
◆ Delivered 2-4 days after mailing

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医療用316Lサージカルステンレスサウナ・海・筋トレOK ¥20,000以上送料無料刻印サービス対応

BLACK CLAW

You can use it as is, even in the sea or bath.

Since these are items you wear every day, we've focused on materials that are gentle on your skin and comfortable to wear.

They are also used in medical devices, so
those with metal allergies
can use them with relative peace of mind.

Necklace

Materials

Commitment to materials

Enjoy the overwhelming sense of weight.
Rust-resistant and scratch-resistant!

It's allergy-friendly, so you can wear it all the time!
It will definitely create a striking look for your wrist.

In detail

Customer Testimonials

★★★★
It's noticeable but understated. It doesn't tarnish at all, even when worn every day, and the best part is I don't have to take it off while working out.

K.T.
Fukuoka Prefecture, 30s

★★★★
I bought this as a gift for my boyfriend. I was surprised by the luxurious feel of the original box. He was incredibly happy with it, and I'm very satisfied.

Master of Science
Tokyo - 20s

★★★
I like the simple yet not cheap-looking design that works for both business and private occasions.

Y.H.
Osaka Prefecture - 30s

★★★★
I have a metal allergy, but since this is surgical stainless steel, there's no rash. I even wear it in the ocean and there's no discoloration, it's the best.

R.N.
Okinawa Prefecture, 20s

★★★★
This is my third repeat purchase. People sometimes ask me what brand it is.

D.K.
Kanagawa Prefecture, 30s

Gift

Delivered in carefully considered packaging

We will ship the item in an original box with the BLACK CLAW logo. Wrapping bags are also available upon request. Please feel free to use this for gifts to your loved ones.

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