F.A.Q

We offer both natural diamonds and lab-grown diamonds to suit your preferences and budget. Each stone is carefully selected for beauty and brilliance. You can choose shape, carat, color, and clarity with expert guidance from our team.

Yes — center diamonds are independently graded and certified by respected laboratories such as GIA (Gemological Institute of America), GCAL, and IGI. Certification ensures you know exactly what you’re getting in terms of quality and characteristics.

You can begin by calling or texting us, or booking a custom design consultation online. We’ll discuss your vision, budget, and timeline, then help you choose the perfect diamond and setting. Email amyv@gemmasjewelers.com 

Yes — we can often set your own diamond or heirloom stone into a custom setting. Bring it in for inspection so we can assess it and discuss design options. (Some older stones may require cleaning or additional work to be suitable for modern settings.)

7. Where are you located?

We have three showrooms in Southern California:
📍 Rancho Cucamonga
📍 Eastvale
📍 Mission Viejo
Visit any location to explore our collections and work with our designers in person.

Yes — our expert team handles repairs, sizing, and professional cleaning. Ask in-store or reach out to schedule service. (Turnaround times vary by service.)

Timeline depends on design complexity and diamond availability, but most custom engagement ring projects take several weeks from consultation to delivery. Your designer will give you a detailed estimate.