Questions & Answers

Yes. Moissanite is a genuine gemstone — silicon carbide, one of the hardest minerals on earth. It’s a certified stone in its own right, never glass or cubic zirconia.

Beautiful, and on its own terms. Set in a ring, moissanite is brilliantly clear and white, with a lively fire all its own — the flashes of rainbow color a stone gives off when it catches the light. To the eye it simply reads as a stunning gemstone.

Every Sempre piece is made to the same fine standard — the same metal, setting, and craftsmanship as any fine jewelry. Because moissanite is created in a laboratory rather than mined, the price reflects the stone itself, never a compromise on quality.

Extremely. At 9.25 on the Mohs scale, moissanite is second only to diamond and is well suited to everyday wear, including engagement rings.

Only the highest: colorless (D–E–F), ideal-cut, and VVS clarity. We don’t offer lower grades.

Yes. Every Sempre piece arrives with a certificate of authenticity documenting its grade, and is hand-inspected before it ships.

Shipping is calculated at checkout based on your destination.

If a piece isn’t right, contact our concierge and we’ll work with you on a return or exchange.

In-stock pieces ship within a few business days. Made-to-order pieces typically take 3–4 weeks; the timeline is noted on each product.

We’re an appointment-only house in Orange County. You can book a private viewing or arrange a local private delivery.

Absolutely. Our atelier creates bespoke commissions and heirloom redesigns — start your design on our Bespoke page.