18K gold-plated necklace with black agate stone

This 18K gold-plated necklace features a striking black agate stone, combining timeless elegance with natural beauty. The gold plating ensures lasting shine and durability, while the black agate adds a sophisticated contrast, making it a versatile accessory for both formal and casual occasions.

Expertly crafted, this necklace offers a refined statement piece that enhances any jewelry collection.

Key Features:

• Material: 18K gold plated over brass
• Hypoallergenic: nickel-free
• Gemstone: ethically mined and sourced from Brazil

We accept returns of unused jewelry within 30 days for a refund.

Free shipping on all U.S. orders.

Please allow 1–2 business days for processing.

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Use our Care Guide for keeping your gemstones jewelry shining beautifully, just as they did the day you received them.

Explore our Gemstone Guide to learn about each stone’s origins, unique qualities, and fascinating facts—uncovering the beauty and meaning behind every gem.