Vault by Diamond Banc

Content rating
Everyone
10+
Downloads
Content rating
Everyone
Learn more
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About this app

Vault by Diamond Banc is the wholesale marketplace for approved jewelry and watch dealers. Browse dealer-priced inventory, bid in live auctions, negotiate offers, and check out securely — all from your phone.

FOR APPROVED DEALERS ONLY
Vault is a business-to-business platform. Apply in the app with your resale credentials, or sign in with your existing Diamond Banc dealer account. Applications with a dealer invite code are approved instantly.

LIVE AUCTIONS
• Real-time bidding with anti-sniping protection
• Push alerts when you're outbid and when auctions open or close
• Countdown timers, scheduled auctions, and instant results

MAKE OFFERS
• Submit offers on buy-now inventory
• Get accepted, countered, or declined — with a push either way
• Respond to counters in seconds

BUY NOW
• Pre-owned Rolex and luxury watches, GIA-certified diamonds, and fine estate jewelry at wholesale prices
• Detailed photos and video on every listing
• Secure checkout tied to your dealer account

BUILT FOR THE TRADE
• See who listed each item and contact the Diamond Banc team directly
• Track your bids, offers, watchlist, and order history
• Face ID / fingerprint sign-in
• Notification preferences you control

ABOUT DIAMOND BANC
Diamond Banc's Industry & Dealer Division supplies the jewelry trade with pre-owned luxury watches, certified diamonds, and estate jewelry. Vault is the fastest way for dealers to see what's new and act on it first.

A Diamond Banc dealer account is required to buy. Questions or dealer applications: trade@diamond-banc.com
Wholesale watches, jewelry & diamonds for approved dealers. Bid, offer, buy.
Updated on
Sep 10, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Personal info, Financial info and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

Auction upgrades and more flexible offers:

• Auction listings now include a full photo gallery and item description
• Make an Offer: enter any amount — no more fixed suggestion
• Set a reminder before an auction ends (5, 15, or 30 minutes out)
• Choose which categories you get notified about — Watches, Jewelry, or Diamonds