Act as a professional culinary designer with 10 years of experience in kitchenware innovation. Design a high-end, AI-curated cheese knife featuring precision-engineered slicing guides for perfect portions every time. The knife should have a [stainless steel blade] with a [ergonomic walnut handle] and [laser-etched measurement markers] for accuracy. Emphasize sleek, modern aesthetics while ensuring functionality for both soft and hard cheeses. Include subtle branding elements like a [minimalist logo] on the handle. Render the knife in a photorealistic style, placed on a [marble countertop] with artisanal cheese and grapes for context. Use soft lighting to highlight the blade's sharpness and the handle's craftsmanship.