Geoffrey’s Diamonds has a showroom in Campbell, California, located at 342 E. Campbell Avenue. Our team is proud to serve customers throughout Campbell and the greater Bay Area. Appointments are available for personalized consultations.

We offer a wide selection of fine jewelry, including engagement rings, wedding bands, diamond rings, earrings, necklaces, bracelets, pendants, watches, and more. Our jewelry is available in a variety of metals and features diamonds and precious and semi-precious gemstones.

Yes. We offer both natural and lab-grown diamonds in a variety of shapes, sizes, and qualities, helping you find the right diamond for your style and budget.

Our team can help you understand the 4 Cs of diamonds—Cut, Color, Clarity, and Carat Weight—and guide you toward a diamond that fits your preferences and budget. We can also help you compare natural and lab-grown diamonds to find the option that's right for you.

We offer a variety of popular diamond shapes, including round, oval, cushion, princess, marquise, pear, Asscher, emerald, and radiant.

Absolutely. Our custom design process allows you to create a one-of-a-kind engagement ring, wedding band, or fine jewelry piece. We work with you to bring your vision to life through personalized consultations, hand sketches, CAD design, and advanced 3D printing.

Yes. We offer CAD revisions throughout the design process so you can refine the details of your piece before production. Because each custom piece is made specifically for you, custom orders are final. Adjustments are available within the parameters of the approved design, while major redesigns or material changes may result in additional costs.

Yes. Our experienced master craftsmen provide a range of jewelry repair and restoration services, including ring sizing, stone replacement, polishing, chain soldering, and other repairs. We also offer watch repairs and battery replacements.

Yes. We can clean, polish, inspect, and service jewelry even if it wasn't originally purchased from Geoffrey's Diamonds. All repair work is evaluated individually.

An in-person evaluation is required for repair quotes. Our team will examine your jewelry and discuss the recommended work with you before moving forward.

Yes. Repairs performed by Geoffrey's Diamonds include a six-month guarantee. If our repair work does not hold, we'll make it right or provide a refund according to the terms of the repair guarantee.

Yes. We offer an all-inclusive lifetime warranty on qualifying jewelry purchased from Geoffrey's Diamonds. The warranty includes complimentary cleanings, inspections, polishing, maintenance and repair work, and ring resizing.

Qualifying jewelry made entirely of gold, platinum, or palladium, with or without diamonds and precious or semi-precious gemstones, is covered. Diamond replacement is also included for eligible stones up to .25 carats when the stone is lost from the setting and the jewelry has not been mistreated or mishandled.

To maintain your warranty, bring your jewelry to our Campbell showroom or send it to our service center for a complimentary care and cleaning inspection every six months.

Don't worry. If you miss an inspection, your warranty may be reinstated after a quality inspection and completion of any necessary repairs at your cost.

No. The lifetime warranty does not cover jewelry that is lost or stolen. We recommend obtaining separate jewelry insurance to protect against theft and total loss.

Yes. Complimentary ring resizing is included with our lifetime warranty on qualifying jewelry.

Yes. We are happy to clean, polish, and inspect jewelry even if it was purchased elsewhere.

Yes. We provide professional jewelry appraisals, including insurance appraisals, performed by experienced gemological professionals.

Insurance-grade appraisals are available for $150 per item with a typical two-week turnaround. Saturday appointments for a same-day, on-the-spot appraisal are available for $190 per item.

If you are looking for a verbal estimate of jewelry you already own and are considering selling, we are happy to provide a complimentary verbal estimate. Formal appraisals are recommended primarily for insurance purposes.

Yes. We purchase gold jewelry that you no longer wear or want, offering competitive prices based on current market value and the characteristics of your gold.

You can bring in a variety of unwanted or outdated gold jewelry, including rings, necklaces, earrings, bracelets, and other gold pieces. Whether you have one item or an entire collection, our team can evaluate your jewelry.

We offer fair market value for GIA-graded natural diamonds that are one carat or larger. Our team can evaluate your diamond and explain your options.

Yes. You can browse our online collection of fine jewelry, including engagement rings, wedding bands, diamond jewelry, and more.

Select items may be available for in-store pickup. Availability and pickup options are displayed with eligible products.

Many of our jewelry pieces may have customization options available. Contact our team to discuss sizing, metal options, gemstones, or other potential modifications.

Our jewelry experts are here to help. Whether you're shopping for an engagement ring, wedding band, diamond, or special gift, we can help you compare options and find a piece that fits your needs.

Yes. We encourage appointments for custom design consultations, diamond selection, appraisals, repairs, and personalized jewelry consultations.

Eligible in-stock items may be returned within 30 days of purchase, provided they are unused, in their original condition and packaging, and accompanied by proof of purchase.

No. Special and custom-made items are final sale and are not eligible for return or exchange.

Sale items are not eligible for refunds under our current return policy. Regular-priced merchandise may be eligible for return if all other requirements are met.

No. Gift cards are non-returnable.

Customers are responsible for return shipping costs. Original shipping costs are non-refundable, and return shipping costs may be deducted from the refund when applicable.