JM GLOBAL INDEX
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The dealer floor for watches and jewelry

A private group where verified dealers and companies buy, sell and connect on luxury watches and fine jewelry. Close deals directly between you, or bring in our escrow service when you want the extra cover.

720+verified dealers
2,500+watch listings posted daily
$50M+daily listing value
Miami, Florida Optional escrow Watches and jewelry Dealers and companies only
  • BreitlingBREITLING
  • IWCIWC
  • CartierCARTIER
  • RolexROLEX
  • OmegaOMEGA
  • Audemars PiguetAUDEMARS PIGUET
  • Vacheron ConstantinVACHERON CONSTANTIN
  • Patek PhilippePATEK PHILIPPE
  • Richard MilleRICHARD MILLE
  • CartierCARTIER
  • Tiffany & Co.TIFFANY & CO.
  • Van Cleef & ArpelsVAN CLEEF & ARPELS
  • BvlgariBVLGARI
  • Harry WinstonHARRY WINSTON
  • GraffGRAFF

Built for the way dealers actually trade

Luxury watches and fine jewelry, in one closed floor of people who move stock for a living. No listings to police, no retail tyre-kickers, and the safeguards on hand for the deals where you want them.

The best place to make real deals

Escrow service

Yours to use when you want it, never required. If both sides agree, Jewelry Martin holds the funds and the piece until each side has what it was promised.

Verified pieces

Every seller answers for their stock. Replicas, franken-watches, undisclosed aftermarket parts and unstated treatments get an account removed.

Buy & sell

Post what you have, ask for what a client wants. Offers move in hours, not weeks, because the room is only dealers.

Trusted community

Members are reviewed before they are let in, and references travel with them. You know who is on the other side of the table.

Discretion & security

Prices, clients and inventory stay inside the group. Nothing is indexed, published or shared with the retail market.

Daily opportunities

New stock and new requests every day, from Miami and from dealers worldwide.

JM Global Index — luxury, trust, excellence. JMINDEX.COM, your destination for luxury: buy and connect with dealers, sell and grow your business, join a global community. 720+ verified dealers, 2,500+ watch listings posted daily, $50M+ daily watch listing value.

Jewelry Martin stands behind the room

JM Global Index is run by Jewelry Martin, a Miami house built on luxury, trust and excellence, trading luxury watches and fine jewelry alike. The same people who take your call are the ones who hold escrow when a deal calls for it, which is why a deal here carries a name and not just a username.

  • Based inMiami, Florida
  • WatchesOmega · Cartier · Rolex
    Audemars Piguet · Patek Philippe
    Richard Mille
  • JewelryCartier · Tiffany & Co.
    Van Cleef & Arpels · Bvlgari
    Harry Winston · Graff
  • EscrowOptional, held in house
  • Open toRegistered dealers and companies
  • LanguagesEnglish · Español · Português · Italiano · 中文 · Français · Deutsch · Русский · Türkçe

Open your dealer account

Free, and it takes a minute. Confirm your email and you can post straight away — your stock is seen by every verified dealer on JM Global Index, and by nobody outside.

  • Post your watches and jewelry, with four photos and a short video each
  • See what every other dealer has available, updated all day
  • Optional escrow custody on any deal, if and when you want it
  • Entry to the private WhatsApp, Telegram and Facebook groups

What you post

Two forms, each asking only for what matters.

A watch

Brand, model, reference number, condition and year. Price, or leave it on request.

A piece of jewelry

Type, brand, material, stones, carats, condition and year. Price, or leave it on request.

Four photos and a video

Up to four photos and one clip of fifteen seconds. Shot on your phone is fine.

Everything you post stays inside the group. Nothing is indexed by search engines and nothing is visible without an account.

Where the trading happens

Two floors, one membership. Scan with your phone or tap through, and work on WhatsApp, Telegram or Facebook — wherever your clients already are.

Watches groups

QR code for the JM Global Index watches groups groups

Rolex, Patek Philippe, AP, Richard Mille, Omega, Cartier and Breitling. Stock, requests and offers all day.

Jewelry groups

QR code for the JM Global Index jewelry groups groups

Cartier, Tiffany & Co., Van Cleef & Arpels, Bvlgari, Harry Winston and Graff. Signed pieces, diamonds and estate.

How the escrow service works

Using escrow is always your choice. When you do, Jewelry Martin acts as a neutral and trusted third party between buyer and seller, safeguarding both the item and the payment until it is confirmed that both sides have met the agreed terms.

  1. Seller ships to Miami

    The seller ships the item physically to Jewelry Martin in Miami, before receiving any payment.

  2. We receive and verify

    Jewelry Martin confirms physical receipt of the item and verifies that it matches the description the seller provided.

  3. Custody receipt issued

    Jewelry Martin issues an Escrow Custody Receipt to both seller and buyer, documenting the entire transaction.

  4. Buyer funds the escrow

    The buyer sends payment to Jewelry Martin in USD / USDT, covering the item value plus the commission — 1.5% for members, 3% for non-members. Jewelry Martin then confirms receipt and validity of the funds.

  5. Item and funds released

    Once both the item and the payment are verified as satisfactory, Jewelry Martin ships the item to the buyer and transfers the funds to the seller, less the commission — 1.5% for members, 3% for non-members.

SecurityYour peace of mind is our priority.
TrustA neutral third party you can trust.
TransparencyA clear, documented process.

Your transaction, in our custody.

Find us in Miami

The house, and where escrow is held. Visits by appointment.

36 NE 1st Street, Suite 234, Miami, Florida 33132
Get directions

Where the trading happens

Two floors, one membership. Scan with your phone or tap through, and work on WhatsApp, Telegram or Facebook — wherever your clients already are.

Watches groups

QR — Watches groups

Rolex, Patek Philippe, AP, Richard Mille, Omega, Cartier and Breitling. Stock, requests and offers all day.

Jewelry groups

QR — Jewelry groups

Cartier, Tiffany & Co., Van Cleef & Arpels, Bvlgari, Harry Winston and Graff. Signed pieces, diamonds and estate.