Nut
Round Ruby Piercing
Nut is an 18k gold stud piercing, available in three elegant tones: yellow, white, or rose. Equipped with a secure screw-back and flat disc, this piercing ensures comfort throughout the day. Adorned with a natural Ruby of round shape, handpicked for their AAA quality, it combines sparkle and elegance. It is ideal for various ear piercings including lobe, helix, anti-helix, conch, contraconch, and tragus.
Choose from 5 mm, 6.5 mm, or 8 mm lengths. Our size guide will help you select the ideal fit.
Compatible with our MADAJ chain charms.
Estimated delivery: July 04
Every MADAJ Piercing comes with a Certificate of Authenticity mentioning all the characteristics.
Each piercing is distinctively engraved with the MADAJ logo and stamped with '750' to guarantee its 18-karat gold composition.
All diamonds above 0.30ct will be delivered with a lab certificate (IGI, HRD or GIA).
Estimated delivery is within 2-3 weeks, as each piece is custom-made to order. Therefore, please note that delivery time may vary by a few days.
- Shipping: Enjoy free worldwide shipping from 200$/200 euros.
- Returns: If your piece isn’t quite right, return it unworn, unaltered and in its original packaging within 30 days for a refund to your original payment method. Refunds are processed within 7-10 days.
Please Note:
- Custom orders, items purchased with discounts (excluding welcome offers), and exchanged items are final sales and cannot be refunded.
- Any returned items that are worn, damaged, or altered will not be accepted.
- Changes to an order make it final.
- Return shipping costs are your responsibility.
Over time, jewelry can accumulate body oils and residue from skin products, which may affect the appearance of the mounting and the stones. To maintain the brightness and freshness of your jewelry, follow these simple steps:
- Take a soft-bristled toothbrush with a mild soap and gently brush both the front and back of the stones and metal.
- Rinse the jewelry thoroughly with lukewarm water to remove any soap residue.
- Avoid using ultrasonic cleaners, as they are not recommended for jewelry cleaning depending on the stones.
- Steam cleaning is an effective method, but exercise caution with emeralds or opals, as high heat can potentially damage these stones.
By regularly caring for your jewelry in this manner, you can help preserve its beauty and extend its lifespan.
Choose options
Nut
Round Ruby Piercing
Estimated delivery: July 04
Our Rubies
All MADAJ rubies are 100% natural — never lab-grown, never synthetic. Sourced from trusted partners in Mozambique and Thailand, each ruby is hand-selected by our expert gemologists for its rich red hue, exceptional clarity, and ethical provenance.
We embrace the subtle inclusions that make each ruby unique, enhancing its natural beauty rather than masking it. Every stone is precisely set and comes certified with your jewelry, detailing its specific qualities.
Fiery. Precious. Authentic. The ruby your piercing was made for.
Only 18k Hypoallergenic Gold
Every MADAJ piece is crafted in solid 18k gold — always nickel-free and hypoallergenic, for maximum comfort and long-term wear.
Available in Yellow, White, and Rose Gold, 18k is the gold standard in fine jewelry — unlike 14k, which carries only 58% gold and often includes irritating base metals.
Enduring quality. Skin-safe by nature. Made to stay with you.
Made to Order, Crafted to Fit
Every MADAJ piercing is made just for you — crafted to order in our own atelier, combining traditional goldsmithing with cutting-edge technology. From 3D precision to hand-finishing, our team oversees every step under one roof to ensure exceptional fit, comfort, and quality.
Nothing is mass-produced. We work from raw materials — gold, gemstones, and your specifications — to create a piece that's uniquely yours. That’s how we guarantee a perfect fit, and zero waste.