FAQ

Our Diamonds

Are lab-grown diamonds real diamonds?

Yes. Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds — the only difference is origin. Ours are grown above ground, then cut, certified, and handset in our NYC studio.

Are your diamonds certified?

Diamonds 1.00 carat and above are independently certified by IGI (International Gemological Institute) and laser-inscribed with their certificate number — that piece ships with its matching IGI certificate. Diamonds under 1 carat are graded to the same quality standards but are not individually certified.

What metals do you offer?

14K and 18K gold (white, yellow, rose) and platinum, depending on the piece.

Shipping & Returns

Is shipping free?

Yes — free, fully insured FedEx shipping within the US, with signature required on delivery.

What is your return policy?

You have 30 days from delivery to return your purchase for a full refund to your original payment method — no restocking fees. We provide a prepaid, fully insured FedEx return label; the $75 label cost is deducted from your refund. Items must be unworn, with original packaging and the matching IGI certificate if one was included. See our Return Policy.

Sizing & Care

What ring sizes do you offer?

Sizes 4–9, including quarter sizes. Not sure of your size? See our Ring Size Guide or contact us and we'll help.

Do you offer resizing?

Yes — resizing is available through our NYC studio. Contact us for details.

Payment

What payment methods do you accept?

All major cards, Google Pay, and Shop Pay. Financing is available through Shop Pay Installments — split your purchase into interest-free or monthly payments at checkout.

Visit Us

Can I see a piece in person?

Yes — schedule a private viewing at our showroom: 62 West 47th Street, Suite 1211, in NYC's Diamond District. Call or text (646) 532-9004 or email info@zackandelle.com.