Bonhams vs Vault by Diamond Banc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bonhams
Explore and bid on fine art, antiques, collectables, and motor cars from a global auction house. Discover valuations and sales advice across 60 specialist areas worldwide.
- Fine art auctions
- Antique auctions
- Collectables auctions
- Motor car auctions
- Valuation services
- Global sales network
Read full descriptionHide full description
Bonhams Fine Art Auctioneers & Valuers: auctioneers of art, pictures, collectables and motor cars. Bonhams, founded in 1793, is one of the world's largest auctioneers of fine art and antiques. The present company was formed by the merger in November 2001 of Bonhams & Brooks and Phillips Son & Neale. In August 2002, the company acquired Butterfields, the principal firm of auctioneers on the West Coast of America. Today, Bonhams offers more sales than any of its rivals, through two major salerooms in London: New Bond Street and Knightsbridge; and a further three in the UK regions and Scotland. Sales are also held in San Francisco, Los Angeles, Carmel, New York and Connecticut in the USA; and Germany, France, Monaco, Hong Kong and Australia. Bonhams has a worldwide network of offices and regional representatives in 25 countries offering sales advice and valuation services in 60 specialist areas.
Vault by Diamond Banc
Read full descriptionHide full description
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. Access is limited to verified jewelry industry professionals. LIVE AUCTIONS • Real-time bidding with anti-sniping protection • Alerts when you're outbid and when auctions open or close • Countdown timers, scheduled auctions, and instant results • Set a maximum bid and let the engine bid for you MAKE OFFERS • Submit offers on buy-now inventory • Get accepted, countered, or declined — with an alert 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 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. No payment is collected in the app at the time of bidding or offering — winning bids and accepted offers are invoiced through standard checkout for physical goods shipped to the dealer. Questions or dealer applications: trade@diamond-banc.com
Screenshots
Verdict
The clearest difference is update cadence: Vault by Diamond Banc at every 3 days against Bonhams's monthly. Bonhams's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Bonhams ships an update monthly, Vault by Diamond Banc every 3 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Bonhams | Vault by Diamond Banc |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (150 ratings) — better | — |
| Positive reviews | 18.8% of reviews | — |
| Number of ratings | 150 — better | — |
| Update frequency | Monthly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 25 MB | 59 MB |
| Age rating | 9+ | 4+ |
| Developer | Bonhams 1793 Limited | Diamond Banc 2 LLC |
Bugs and requests
Bonhams
Reported bugs
72 issues- App fails constantly
- Does not connect with website
- Requires constant re-login
- Does not work with facial recognition
- Lost connection frequently
Show 67 moreShow fewer
- Missed lots due to poor UX
- Hard to follow items
- Logged out everyday
- Not showing historical bids
- Constantly 'unable to connect'
- Photos not loading
- App keeps trying to load after update
- Error loading more auctions
- Spinning progress arrows annoying
- Laggy and unstable
- Impossible to follow lots
- Every lot shown from beginning of time
- Forces email account for condition report
- App doesn't update with upcoming auctions
- No customer service responses
- No invoice available on app
- Tedious scrolling for auctions
- No way to search auction location
- No filter for item category
- App is unusable
- Many functions unusable
- Get stuck in search screen
- Login difficult
- Requires re-creating account
- Cannot enter app with iOS 17.4.1
- Rubbish app
- Never get reply
- No longer select sales by location
- No Italian language option
- Bad customer support replies
- High user charge (28%)
- Telephone support on hold/hangs up
- No digital payment interface
- Icons too small
- Bidding not fit for purpose
- Fails to send bids
- Cannot save favorite artists
- No notification for favorite artists
- Malfunctioning watch sold
- App does not show current bid
- Not notified when outbid
- No filter to exclude US auctions
- Insensitive customer service for pickup
- No obvious way to sort auctions by location
- Location not shown upfront
- Cannot create account on iPhone (button hidden)
- App initializing for over a month
- Constantly crashing and unreliable
- Can't find specific auctions (NY, type)
- Outrageous buyer's premium (30%)
- Difficulty changing password/account issues
- Wrong descriptions and bottles shown
- Slide bar wouldn't work for bidding
- Always lag, lose for the lot
- Misrepresented lot with wrong registration mark
- Difficult to navigate
- Impossible to sign off
- Keeps asking to sign up for newsletter
- No one responds to email
- Password doesn't work / account doesn't exist
- Unorganized and poorly run business
- Terrible, temperamental, unreliable, confusing
- Not user friendly
- Browsing auctions almost impossible
- No search function
- Cannot access today's sale results
- Cannot get auction details
Requested features
17 requests- Most recent followed lots on top
- Embed condition report in app
- Search for auction location
- Filter by item category
- Sort auctions by location
Show 12 moreShow fewer
- Save favorite artists and get notifications
- Filter available auctions to exclude specific regions
- Italian language option
- Ability to sort auctions by location
- Display auction location upfront
- Functionality to register for auction via app
- Functionality to bid through the app
- Load online auctions onto the app
- Search function for artists
- Improved UI for viewing artworks (like Christie's)
- Dark mode option
- Advanced analytics dashboard
Vault by Diamond Banc
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Bonhams
No in-app purchases
Vault by Diamond Banc
No in-app purchases
