金価格が史上最高1オンス5,300ドルに急騰

The assessment is "likely_true" with high confidence based on strong, consistent evidence from multiple authoritative sources. The most credible source, with an authority and relevance of 0.95, explicitly states that gold surged past $5,100 per ounce and cites a bank price mention of $5,200. This is extremely close to the claimed $5,300 and strongly supports the price being in that range. This is further corroborated by two other relevant sources confirming that gold surpassed the $5,000 mark and set new records, with one providing a specific trading price of $5,089.11.While one source reports a slightly lower record high of $4,924.29, this is outweighed by the multiple other high-authority sources reporting prices well over $5,000. The minor discrepancy does not undermine the overall trend, and the lower figure could be due to different reporting times in a volatile market. The source discussing historical prices is not relevant to this current claim and was disregarded.In conclusion, although no single source explicitly confirms the exact figure of $5,300, the cumulative evidence points overwhelmingly to a new record high in the immediate vicinity of this price. The report of prices exceeding $5,100 and reaching at least $5,200 makes the claim of a $5,300 peak highly plausible.