Sell Your Engagement Ring on Madison Avenue in Midtown Manhattan

We are Madison Ave Gold Buyers, and we buy diamond engagement rings from the public for cash at our Madison Avenue showroom in Midtown Manhattan. This page explains how we read an engagement ring, what lifts and lowers the offer, what to bring, and what you should ask any buyer in New York before you hand anything over. The appraisal is free, there is no pressure to sell, and nothing is tested out of your sight.

What an engagement ring is actually worth

The price of an engagement ring at resale rests on four things: the center diamond, the metal of the band, the setting and brand, and the condition of the whole piece. Of these, the center stone almost always carries the most weight, so most of an honest appraisal is spent on the diamond. If your stone is loose or has already been taken out of its setting, our diamond buyers page covers loose stones in full.

What a ring cost at retail is not what it is worth secondhand, in the same way a car is worth less than its sticker the day it leaves the lot. An honest buyer values the ring on its own merits, the quality of the diamond and the metal in front of them, and not on the old receipt. That is the figure we work to, and we show you how we reach it.

The diamond: the 4Cs and the GIA report

Every diamond is described by the 4Cs: color, clarity, cut and carat weight. GIA, the Gemological Institute of America, uses these four characteristics to grade every stone it sees, and the term was coined by GIA’s founder in the 1940s to replace the vague, inconsistent descriptions the trade used before. You can read the 4Cs in GIA’s own words.

Color and clarity

GIA’s color scale runs from D, the most colorless, down to Z, and it has been the industry standard since 1953. Clarity describes the tiny inclusions inside a stone and the marks on its surface. In an engagement ring the center stone is usually held by prongs that cover part of it, so a grade taken from a loose examination is more exact than one read through a setting, which is one reason a GIA report adds confidence to an offer.

Cut and carat

Cut is what gives a diamond its brightness, and GIA introduced its cut grading system for round brilliant diamonds in 2006. Cut is graded separately from the shape of the stone. Carat is a unit of weight, not size: one carat is 200 milligrams, divided into 100 points, so a stone described as 75 points weighs three quarters of a carat. Two rings with the same carat weight can be worth very different amounts once color, clarity and cut are read.

A GIA grading report is an independent description of a stone, not a price and not a valuation. GIA is a nonprofit institute founded in 1931 that does not buy, sell or appraise diamonds commercially, which is exactly why its reports are treated as a neutral standard. If your ring came with a report, bring it. If it did not, we can still appraise the diamond and the ring in front of you.

Natural or lab-grown, and why it changes the offer

A diamond grown in a laboratory is a real diamond, but it is not worth the same as a natural one at resale, and the gap is wide. It matters that a buyer can tell them apart, and GIA now laser inscribes the words LABORATORY-GROWN, together with the report number, on the girdle of every lab-grown stone it grades. GIA’s laboratory-grown diamond reports also state whether a stone was made by the chemical vapor deposition or the high pressure, high temperature method.

GIA describes a lab-grown diamond’s color and clarity on the same scale it uses for natural stones, but it is careful to say that scale does not correlate to nature’s continuum of rarity. In plain terms, a lab-grown diamond and a natural diamond with matching grades are not worth the same money. If you do not know which you have, that is common, and reading the stone is part of what we do during the appraisal.

The band: gold, platinum and the setting

Once the stone is accounted for, the metal has its own value. Engagement ring bands are usually gold or platinum. Gold purity is measured in karats out of 24: 18 karat gold is 75 percent pure gold, 14 karat is about 58 percent, and 10 karat, the lowest that can be sold as gold in the United States, is about 42 percent. We test the karat and weigh the band on a scale in front of you, reading the weight in pennyweights or troy ounces, the units the trade uses for precious metal, and the gold portion of the offer tracks the live price of gold per troy ounce.

Platinum is the other common ring metal and is valued apart from gold. A piece marked as platinum in the United States contains at least 950 parts per thousand of pure platinum under the Federal Trade Commission’s jewelry guides, and you will often see it stamped Pt, Plat or 950. Platinum is denser than gold, so a platinum band tends to weigh more than a gold band of the same size, which is part of why the two are priced separately.

The setting and the maker can add to the figure. A ring from a recognized designer house, with its original box and papers, can be worth more than its diamond and metal alone, because the name and the provenance carry value of their own, much as they do with a luxury watch. Condition matters too: a bent band, worn prongs or a chipped stone pull an offer down, while a piece in good order holds its value. We tell you plainly how each of these reads on your ring.

What to bring when you sell

• The ring itself, and any matching wedding band if you want both valued.
• The GIA or other grading report for the center stone, if you have one.
• The original receipt or a past appraisal, which can help identify the piece, though neither sets the resale price.
• The original box and papers, above all for a designer or branded ring.
• A government photo ID, which New York law requires a licensed buyer to record at the time of purchase.

How we appraise and pay

We have built our name over more than 15 years on one habit: nothing happens out of your sight. When you bring in an engagement ring, we examine the center stone under a loupe, read any grading report with you, test the metal and weigh it on a scale in front of you, and explain what each step tells us. You see exactly what we see, and you can ask about anything before a number is ever named.

From there we make an offer. If it works for you, we pay in cash on the spot. If it does not, you take the ring home, with no fee and no pressure to reconsider. We buy directly from the public, without the middlemen who sit between many sellers and the final buyer, and cutting them out is part of how we are able to pay what we do.

Why sell with a Madison Avenue buyer

Our showroom is on Madison Avenue in Midtown Manhattan, easy to reach whether you are coming across town or in from outside the city. We have bought gold, diamonds and jewelry from the public for more than 15 years, so an engagement ring is read quickly and accurately, and the center stone, the metal and the setting are each valued in front of you. The appraisal is free and there is no pressure to sell.

Selling in person matters more than most sellers expect. You watch the stone go under the loupe, you see the metal tested and weighed on the scale, and you hear how the offer is reached before any number is named. Right in Midtown, you can bring a ring in, get a straight answer the same day, and walk out with cash if the offer works for you.

What to ask any buyer in New York

You should hold any buyer, us included, to the same standard. A business that buys used jewelry in New York City is required to hold a Secondhand Dealer license from the city’s Department of Consumer and Worker Protection. Before you sell, it is fair to ask whether a buyer is licensed, and you can read what the city requires of a secondhand dealer for yourself.

The same city law works in your favor in two more ways. A licensed dealer must record each purchase, including a description of the item and the name, address and description of the seller, which is why a buyer will ask to see your ID. And a dealer generally may not sell, melt or refine a purchased item for 15 days after buying it, a waiting period that protects an honest seller if any question comes up after the sale. A buyer who wants to skip these steps is a buyer to walk away from.

• No license, or a buyer who will not say whether they hold one.
• An offer made before the diamond and the metal have been examined in front of you.
• Pressure to decide today, or to sell the whole piece when you only came to ask.
• Testing or weighing done in a back room, out of your sight.
• A refusal to explain how the offer was reached.

After a divorce, an upgrade or an inheritance

Most engagement rings we see come from one of a few situations, and none of them needs explaining to us. After a divorce, a ring is often the last thing someone wants to keep, and selling it is a clean way to close that chapter. An upgrade leaves an earlier ring with nowhere to go. An inherited ring may not suit the person who received it, and selling it can be simpler than storing it away unworn.

If the ring came as part of a larger group of inherited pieces, our estate jewelry buyers page covers mixed lots, and our antique jewelry buyers page covers older and period pieces. For any other gold or gem jewelry, our jewelry buyers page points you to the right place. Whatever the story behind the ring, there is no pressure to sell, and the appraisal is always free.

Questions people ask