New Stainless Steel Eye Plate Locks Marine Eye Plates 316 304 Corrosion Resistance

"Diamond retaining buckle" could refer to a type of buckle or clasp that is adorned with diamonds or has a design reminiscent of diamond shapes. However, without more context, it's a bit unclear whether you're asking for a definition, looking to purchase one, or seeking information on how they are made.

If you're looking for a specific product, you might want to provide more details about the intended use (e.g., for a belt, jewelry, etc.) and any particular style preferences. If you have another question or need further clarification, please let me know!