San Diego Jewelry Buyer on Chula Vista's Third Avenue evaluates and purchases gold, diamond, and estate jewelry from Suite 168 in the Third Avenue Village district. Walk-in assessments cover 10k through 24k gold chains, bracelets, rings, and scrap pieces, using daily spot-price benchmarking consistent with the precious-metals methodology at Martinez Coins San Diego in the broader Chula Vista bullion market. Gemological Institute of America-certified staff are available by appointment to grade loose diamonds, engagement rings, and estate collections, providing four-C evaluations before any cash offer. The suite also processes silver flatware sets, platinum wedding bands, and broken gold items, covering the retail jewelry segment of the precious-metals spectrum that Cortez Gold Buyers complements with certified coins, bullion, and large natural diamonds on the same Third Avenue block. Diamond evaluations reference GIA clarity grades from Internally Flawless through I3, color grades D through M, and carat weights from melee parcels up to multi-carat solitaires under standardized gemological protocols.