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Jewelers & Jewelry Firms

Know What Jewelry Actually Sells For

Buy right, price your inventory to market, and defend a number with confidence. Search 130+ years of jewelry sales, auction results, private sales, and dealer transactions, for signed pieces, estate jewelry, diamonds, and rare gems. Real cleared prices, not asking prices.

Signed jewelry, diamonds, and colored stones with real cleared auction prices
2M+
Jewelry & Gem Sales
130+
Years of History
230+
Auction Houses
Use Cases

How Jewelry Firms Use ALT/FNDATA

On both sides of the deal, real cleared prices turn guesswork into evidence.

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Buy With Confidence

Before you make an offer on an estate lot, a trade-in, or a consignment, check what comparable pieces actually cleared for. Buy right and protect your margin instead of guessing from asking prices.

  • Real cleared prices, not asking or list prices
  • Search by brand, stone, carat, and certification
  • Low, median, and high range for every match
  • Know a piece before you write the check
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Price Inventory to Market

See where signed pieces, diamonds, and colored stones are clearing right now. Price to sell, spot the pieces sitting above market, and back your numbers when a client pushes.

  • Current market ranges by brand and category
  • Sell-through as a demand and liquidity signal
  • Comparable evidence to justify your price
  • USD-normalized across 27 currencies
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Signed Pieces, Diamonds & Colored Stones

Deep coverage where jewelry value lives, going back 130+ years. Signed pieces from Christie's, Sotheby's, and specialty auctions, plus private sales and dealer transactions, across diamonds, colored stones, and estate jewelry.

  • 2M+ jewelry and gem sales across 230+ houses
  • Auction results, private sales, and dealer transactions
  • Signed pieces, estate jewelry, diamonds, and rare gems
  • Image and description data for matching
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See the Market Before It Moves

Track which brands and categories are heating up or cooling down. Buy into strength, clear inventory before a soft patch, and time the market with data instead of instinct.

  • Price trends by brand and category
  • Historical charts for any segment
  • Market indices to frame your decisions
  • New results within 24 hours
Data Capabilities

Built for the Jewelry Trade

The depth and delivery a working jewelry business needs.

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Advanced Search
Find comparables by brand, stone, carat, certification, date range, and auction house.
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USD-Normalized Pricing
Every price in USD with the original currency, using nearest-date FX across 27 currencies.
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Exportable Comps
Download comparable sales in CSV or Excel for offers, pricing, and client conversations.
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Deep, Daily Coverage
130+ years of history across 230+ houses, plus private and dealer sales. New results within 24 hours.
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AI Research Assistant
Ask the market questions in plain language, in the app or inside Claude via the MCP connector.
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Market Indices
Track category-level movements to time your buying and selling.

Trusted by professionals at 200+ organizations worldwide

Christie’s Sotheby’s Bonhams Phillips Heritage Auctions

Buy and price with real market evidence

Sign up free and try ALT/FNDATA now, no credit card. See what jewelry actually sells for and put it to work on your next deal.