GP jewelry may refer to several different brands or designers. Here are a few possibilities:
- Gucci Jewelry - Gucci is a well-known luxury fashion brand that also produces high-end jewelry. The brand's jewelry is often marked with "GP" (Gucci Paris) as a hallmark.
- Gianfranco Pampaloni - Gianfranco Pampaloni is a high-end jewelry designer based in Florence, Italy. His jewelry is often marked with "GP" as a signature.
- Gold-Plated Jewelry - "GP" may also refer to gold-plated jewelry, which is made by layering a thin coat of gold over a base metal. This type of jewelry is often marked with "GP" to indicate that it is not solid gold.