Moissanite has a refractive index of 2.65, among the highest of any gemstone in the world, which is what creates the fire and rainbow flashes you see when light passes through it. It's also 9.25 on the Mohs hardness scale, scratch-resistant for everyday wear. Every Estara stone is lab-grown to D color, VVS clarity, the highest grade we use, fully traceable, conflict-free. Moissanite isn't a substitute for anything. It's the stone we chose, on its own terms.

You have 14 days from delivery to return any non-personalized piece, in its original packaging with the Certificate of Authenticity. Free return shipping for US and Canada. Refunds post to your original payment method within 5–10 business days. Exchanges work the same way, same 14-day window, just email care@houseofestara.com to start. Full terms in our Returns & Warranty Policy.

Manufacturing defects, faulty settings, broken prongs, clasps that fail without abuse, are repaired or replaced at no cost, for the life of your piece. Normal wear over years is covered with store credit toward a new piece. Loss, theft, accidental damage, and modifications by other jewelers aren't covered. Full details in our Returns & Warranty Policy.