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Jewelry Guides
Vintage Longines Watches: What to Look For Before You Buy
Quick Answer: Vintage Longines watches are a strong buy if the dial is original, the case lines are sharp, and the movement is healthy. Focus on condition over hype. Check for...
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Vintage Cartier Watch Guide: What to Check Before You Buy
Quick answer: Before buying a vintage Cartier watch, check dial printing and Roman numeral alignment, case edges for over polishing, and crown and hands for swapped parts. Ask for close...
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How to Read a Jewelry Appraisal Report: Photos, Specs, and the Numbers That Matter
Receiving a jewelry appraisal report should feel reassuring. Instead, many people open the document and feel unsure what they are actually looking at. There are descriptions, photos, measurements, and values....
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Is a Vintage Watch Right for You? A First-Time Buyer’s Guide
Buying your first vintage watch is exciting. It’s also the moment when many people pause and ask a very honest question: Is this actually right for me? For many buyers,...
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Does My Jewelry Appraisal Expire? When to Update and Why Insurers Care
One of the most common questions we hear in our Rockefeller Center showroom is whether a jewelry appraisal expires. Clients also ask a second question right after: does it really...
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Antique vs Vintage Watches: What’s the Difference and What to Look for Before You Buy
Clients often come into our Rockefeller Center showroom asking the same question: what’s the difference between antique and vintage watches, and does it matter before you buy. It matters more...
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How We Appraise Gold and Silver in NYC
Gold and silver value sounds simple until you try to put a real number on it. Most people walk in asking one question: “What’s it worth?” The honest answer is...
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Vintage Watch Prices Explained: What Changes the Cost (and What Doesn’t)
Vintage watch prices can look all over the place. You’ll see two watches that appear similar in photos, and one is $2,500 while the other is $12,500. That’s not always...
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Watch Appraisals vs Servicing vs Authentication: What Each Includes
If you own a watch, sooner or later you’ll hear three terms that sound similar but mean very different things: appraisal, servicing, and authentication. Most confusion comes from one assumption....
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Vintage Watches for Sale: A Buyer’s Checklist for Condition, Originality, and Paperwork
A quick note before you scroll When you look at vintage watches for sale, don’t start with the shine. Start with the facts. Make sure the listing tells you the...
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How Much Does a Jewelry Appraisal Cost in NYC? A Complete Guide From Our Rockefeller Center Jewelers
One of the most common questions clients ask when they visit our Rockefeller Center showroom is how much it costs to have a piece of jewelry appraised in New York...
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A Traveler’s Guide to Buying Vintage and Estate Jewelry in Manhattan
At our store in Midtown Manhattan, we meet travelers every day who come in looking for vintage and estate jewelry. Some walk in after spending the afternoon around Rockefeller Center....
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News
Vintage Watch Collectors Gear Up for NYC’s Fall Auction Season
As New York’s fall auction season approaches, excitement is building among vintage watch collectors. The market for authenticated, investment-grade timepieces has remained strong throughout 2025, and demand is expected to...
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ROMANCE AT THE ROCK
Love and diamonds at Louis Martin Jewelers Proposals, anniversaries, quiet moments between partners—there are plenty of romantic moments at the Rock. We talked to the staff of Louis Martin Jewelers,...
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ESTABLISHED 1978
Louis Martin Jewelers
Store name
54 W 50th Street 30 Rockefeller Plaza
New York, NY 10112
Store hours
Every Day: 9:30am - 6:30pm