New York-based Divorce Your Jewels pays cash for your unwanted jewelry, no matter if it's a five-carat engagement ring, a wedding ring, a jewelry gift you no longer like or want, or jewelry that just sits in a drawer. What makes this service different from something like Cash4Gold is that you set up a personal appointment at your home or the company's office, and the company caters to the high-end clientele. Read more here.
Teeny type at the bottom of the home page indicates that the company has expanded its business to "discreet" departures of museum-quality art, valuable fashion items (e.g., Birkin bags and vintage clothing), or unworn clothes with tags. You also can buy from the company.
No word on whether this service extends beyond New York, but it's worth a call or e-mail: call 917-846-9999/8444 or e-mail Melissa "Missy" Schorr: firstname.lastname@example.org.