Von A-Hole's Oscar Jewelry -- $200,000 in DIAMONDS

Prince von A-Hole better wear sunglasses to the Oscars this weekend -- because the $200,000 worth of diamond jewelry he'll be wearing is BLINDING.

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Zsa Zsa Gabor's husband hit up jeweler Raju Rasiah in Beverly Hills on Friday -- who loaned him two diamond-encrusted platinum rings, a diamond bracelet, and a ridiculous diamond watch ... all for the big night on Sunday.

Let's hope he returns the jewelry, because we all know what happens to people who don't ...