Raw Black Diamond - Turquoise Necklace 20 carat (4-5mm)

✦ Order Fulfillment Made for you.

Every piece is crafted to order. Allow 2–4 business days for us to perfect it before it ships.

📦 Free UPS Express Shipping On us. Always.

Every order ships via UPS Express, delivered internationally. Once your piece is ready:

• 🇺🇸 U.S. delivery: 1–4 business days
• 🌍 International delivery: 1–5 business days
  

All applicable taxes are included for U.S. and EU orders. No surprises at the door. 

↩ 30-Day Satisfaction Guarantee We've got your back.

Not happy? Return it for free within 30 days of delivery. Items must be unused, undamaged, and in original packaging.

Simply drop us an email and our customer service team will take care of the rest.

✦ Free Resizing For New Customers Your perfect fit, guaranteed.

Not sure about your size? Use the measure & sizing guide next to the wrist size field to get your exact fit before ordering. And if it still doesn't fit after delivery, we've got you covered. Every new customer gets one free resize, including return shipping, within 30 days of delivery..

◈ 1-Year Warranty Built to last.

Every piece comes with a 1-year warranty covering one complimentary repair. Because each design uses unique stones and materials, every repair is assessed individually. 

Something off but not sure if it's covered? Just contact us with a photo and we'll figure it out together.

✦ The Story Behind. Gemstone and Us.

Hi, we're Scott, Max — the founders of Aurum Brothers.

It started with a shared passion. Gemstones form underground over millions of years, entirely without human interference. No two come out the same. No two ever will. We found that remarkable, a true marvel of the natural world.

We couldn't understand why so few products on the market gave the stone the credit it deserved. Most brands treat it as decoration. We saw it differently. The stone isn't detail, it's the whole point.

So in 2015, even knowing nothing about business, we decided to figure it out anyway.

We spent days and nights working on our designs, our craft, our quality, the details, our customer experience. All in service of one goal: to let the stone speak for itself.

Eleven years later, there are fifteen of us in a workshop in Brabant, in the south of the Netherlands. Every piece on the site is made here, by hand, after you order it. Nothing sits on a shelf. The stone you receive is the only one of its kind, shaped by nature over millions of years, long before we ever touched it.

✦ Over 10,000+ Verified Reviews A decade of happy customers.

Over 10 years, we've had the privilege of crafting pieces for customers around the world. Here's what some of them had to say.

☆☆☆☆☆"Pictures do not do justice to this excellent jewelry piece. Outstanding gem & stone combination." — John G.

☆☆☆☆☆ "It's been 7 years since my last purchase — only because the first bracelet I wear every day is still in perfect condition. Now I wear two." — D.B.

☆☆☆☆☆"You can tell every single piece was hand picked to look the best all together. Can't stop buying their bracelets for myself and my family." — Mert C.

☆☆☆☆☆"Beautifully made and very comfortable — a great piece to wear solo or stacked. It certainly gets some nice compliments." — David C.

☆☆☆☆☆"They made the purchase feel special. The quality was excellent and I look forward to future purchases." — Anonymous

☆☆☆☆☆"Top quality. Will buy again." — Jon N.

☆☆☆☆☆"Team Aurum Brothers repaired my bracelet perfectly. Super fast return — thank you for this service." — Eelco