2020 Shohei Ohtani Topps Beckett Diamond Icons Relic Red Dual 8.5 NM-MT+ Auto 10

A 2020 Topps Shohei Ohtani Diamond Icons Dual Relic Autograph card, serial numbered 1 of 5, with a card grade of 8.5 and an autograph grade of 10, is an exceptionally rare and valuable collectible. 

Extreme Rarity: The card is part of the Red parallel set, one of only five ever produced (1/5). This extreme scarcity is the primary driver of its high value.
High Autograph Grade: A perfect "10" on the on-card autograph is a significant positive, indicating a pristine signature.
Strong Card Grade: An 8.5 (likely from a company like Beckett Grading Services, or BGS) is considered near-mint condition. While not a Gem Mint 10, the extreme rarity and high auto grade mitigate the impact of the 8.5 grade on overall value.
Player Popularity: Shohei Ohtani's status as a generational talent and one of baseball's most popular players ensures high demand for his ultra-rare items. 
Ohtani's popularity has soared since 2020, suggesting his single-player card numbered to 5 would likely exceed this amount.  The combination of dual relics, a 1/5 serial number, and a perfect autograph grade places this card in a higher tier.