Frequently Asked Questions

Pricing depends on the type, quantity, and complexity of your items. While we're among the most competitively priced in the Bay Area, each piece is unique. A typical appraisal for a 1.5-carat GIA-certified engagement ring starts at $150. For a personalized quote, send a photo and brief description of your jewelry to BalzanLaboratories@gmail.com, including the purpose of your appraisal (e.g., insurance, estate, resale, verification). Tip: Appraising multiple items in one visit may qualify you for a better rate.

Yes. Diamond, gemstone, and precious metal values fluctuate over time. If your insurance is based on outdated values, you risk being underinsured. Likewise, for resale or estate purposes, an updated appraisal ensures accurate market value.

Yes. We’re trusted by major insurance providers, including: State Farm Allstate Geico Jewelers Mutual, and more. We can help you understand which appraisal type and provider best suits your needs.

No. Only GIA can issue GIA reports. We do analyze and add prices to stones described in GIA reports. We can assist in getting your stone GIA certified through their laboratory in Carlsbad CA.

These diamonds are real and are both chemically and visually identical to natural ones. They are created in labs under controlled conditions, with the only difference being their origin. CVD vs. HPHT – What’s the Difference? CVD (Chemical Vapor Deposition): Carbon gas builds layers on a seed crystal. HPHT (High Pressure, High Temperature): Replicates Earth's diamond-forming environment using extreme heat and pressure. Both methods create diamonds indistinguishable from mined ones.

Some machines can suggest whether a diamond is natural or lab-grown, but no single tool guarantees 100% accuracy. Some tools are better at detecting HPHT, while others are better at detecting CVD. That’s why we use multiple advanced screening methods, allowing us to achieve up to 98% accuracy in determining diamond origin.

Unless your diamond comes with a report from a trusted lab, you can’t tell by looking. A proper evaluation by an equipped gemological lab is the only way to know for sure. We offer same-day results using modern tools and testing protocols. Contact us for an appointment.

It depends on the circumstances: If the jeweler was unaware or misinformed, they may work with you toward a solution. If misrepresented intentionally, legal action might be necessary. If the diamond is lab-created but clearly disclosed, it’s simply a matter of preference.

We're here to help. Reach out to BalzanLaboratories@gmail.com or visit our website for more information or to schedule an appointment.