DEMO · ALL CASES AND RESULTS ARE SYNTHETIC
Próba Wartościauction intuition training
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Excelsior DiamondSource image

jewellery-0012 · Wikidata Q1383470

Excelsior Diamond

large diamond discovered in 1893 Catalogue record “Excelsior Diamond” assigned to “Jewellery & Precious Stones”. The name comes from the open Wikidata record Q1383470. Price, condition and auction timing are demonstration data.

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large diamond discovered in 1893 Catalogue record “Excelsior Diamond” assigned to “Jewellery & Precious Stones”. The name comes from the open Wikidata record Q1383470. Price, condition and auction timing are demonstration data.

DEMO LOT

Prices and results are demonstrations. You practise decisions, not the market valuation of this object.

Current bidPLN 41,800
Demo estimatePLN 45,100–PLN 59,500

Time left 37 hr 28 min · Bids 19

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Object source

Wikidata Q1383470. Bidding simulation — Training only · saved on this device · no transaction.

The exercise below is a separate synthetic DEMO case.

MethodologySources and rights

Object source

Verified Wikidata fields

…

Bidding simulation

Practise the bidding decision

Set a private maximum first. The simulator will stop you before emotion pushes the bid above your plan.

Prices and results are demonstrations. You practise decisions, not the market valuation of this object.

Current bid
PLN 41,800
Bids
19
Time left
37 h 28 min
Training only · saved on this device · no transaction

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