About Knight Jewelry & Coin – San Diego’s Most Trusted Gold & Diamond Buyers


For over 12 years, Knight Jewelry & Coin has proudly served the San Diego community as a trusted gold, diamond, and luxury watch buyer. Our mission is simple — to offer honest evaluations, top payouts, and a stress-free selling experience for everyone who walks through our doors.

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Our Story

Knight Jewelry & Coin began with a vision to create a place where people could sell their valuables with confidence and transparency. What started as a small family-run business in Chula Vista has grown into one of San Diego’s highest-rated gold buyers, with thousands of 5-star reviews on Google, Yelp, and the BBB.

We’ve earned this reputation through fair pricing, integrity, and exceptional customer service — values that remain at the heart of everything we do.

Why Choose Us?

  • At Knight Jewelry & Coin, we believe in doing business the right way. Every item is tested in front of you, using state-of-the-art XRF analyzers, acid testing, and certified scales inspected by San Diego Weights & Measures.

  • Our payout system is connected to live gold and silver market prices (via KITCO), ensuring you receive a fair and competitive offer every time. Whether you’re selling a single ring or an entire collection, we guarantee transparency, accuracy, and value.

What We Buy?

We buy all types of precious metals and valuables, including:

  • Gold Jewelry (even broken pieces)
  • Gold & Silver Coins
  • Bullion & Scrap Gold
  • Dental Gold
  • Large Diamonds & Diamond Jewelry
  • Luxury Watches (including Rolex and other premium brands)


We also provide free, no-obligation appraisals — no pressure, no hidden fees. You’re always in control.

Our Products

Featured collection

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White Gold Diamond Ring

White Gold Diamond Ring

White Gold Diamond Ring

$2,200.00
$2,200.00
White Gold Diamond Ring

White Gold Diamond Ring

White Gold Diamond Ring

$2,800.00
$2,800.00
Silver Natural Diamond Ring

Silver Natural Diamond Ring

Silver Natural Diamond Ring

$350.00
$350.00
Natural Diamond Ring

Natural Diamond Ring

Natural Diamond Ring

$450.00
$450.00
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Licensed & Accredited

Knight Jewelry & Coin is a fully licensed precious metals dealer in California, proudly maintaining an A+ rating with the Better Business Bureau (BBB). Our reputation reflects our commitment to honesty, professionalism, and customer satisfaction.

Our LocationCall Us: (619) 777-8238