VERIFIED & TRUSTWORTHY

A Secure Marketplace To
Buy and Sell Luxury
Diamond Jewelry Online

Diamocycle Is The Secure, Fair, And Environmentally-Conscious Marketplace For Loose Diamonds
And Diamond Jewelry. We offer globally competitive pricing and a low-stress process that is easy, efficient, and confidential and works for both the buyer and seller.

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SELL NOW

Most Popular

The Diamocycle Reserve

A curated selection of pre‑inspected vintage and estate jewelry, ready for immediate purchase. Fixed pricing. Fully reviewed. Limited availability.

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Natural & Lab-Grown

Variety of Jewelry Styles

Regardless of the occasion, diamonds beautifully enhance any look and elevate your style.

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Elegant macro shot of a diamond engagement ring set with a blurred background.

List Your Item for Sale!

Showcase your exquisite jewelry to an entirely new market and reach a broader audience.

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Newest Products​

★★★★★

“A Luxurious Diamond Experience from the First Click!”

I was blown away the moment I landed on Diamocycle’s new homepage. The elegant gold accents against the deep green really scream premium—it feels like I’m browsing a high-end jewelry boutique, not just another online marketplace. The hero video of sparkling diamonds instantly pulled me in, and the “Secure Escrow” and “Vouched ID” badges gave me total confidence to sell my ring.The product grid is clean and mobile-friendly—perfect for browsing on my phone—and the “Make Offer” buttons are impossible to miss. I submitted a listing in under 2 minutes, and the direct payout promise (no checks!) is a game-changer.Finally, a diamond broker that looks as trustworthy as it claims to be. 10/10—already recommended to my jeweler friends!

— Sophia R., Los Angeles, CA
Verified Seller, November 2025

Secure Payments​

Shop with confidence knowing that your transactions are safeguarded.

Free Shipping

Shopping with no extra charges – savor the liberty of complimentary shipping on every order.

Order Tracking

Stay in the loop with our Order Tracking feature – from checkout to your doorstep.

DISCOVER OUR STORY

About Us

With over 160 years of experience in the diamond industry, we have and always will center our clients’ needs by prioritizing integrity, transparency, and, most importantly, your peace of mind.

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