18K White Gold 20 Carat Diamond Collar Necklace

Orders & Shipping

Most in‑stock orders ship the same day; some may take up to 48 hours, excluding weekends and holidays.

All orders ship free, fully insured, via FedEx Priority Overnight where available, and require an authorized signature (no PO Boxes).

Returns & Exchanges
You have 7 days from delivery to request a return; items must be unworn, in original packaging, with proof of purchase. To start a return, email support@thebackvault.com and ship to:
15 W 47th Street, New York, NY 10036, United States.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You'll also need the receipt or proof of purchase.

Please note that items that have been resized, altered, or modified in any way are considered final sale and are not eligible for return or refund. Once a ring has been resized, it is considered a customized item and cannot be returned.

For full details, please review our complete policy here.

We do design our own jewelry, but only within a special collection labeled In House Design. These pieces are created by our team and shaped by decades of expertise with exceptional diamonds.

Within the In House Design collection, you’ll find bold statement rings, sculptural earrings, and effortless diamonds-by-the-yard necklaces that showcase our instinctive feel for color, proportion, and presence. Each piece is crafted to endure rather than follow trends, reflecting our legacy of timeless materials, a discerning eye, and luxury that is immediately felt and long remembered.