Are lab-grown diamonds real diamonds?
Yes. Lab-grown diamonds are chemically, optically and physically identical to mined diamonds — 100% carbon, hardness 10 on the Mohs scale, with the same brilliance and fire. Only their origin differs: they are grown above ground instead of mined.
Are OENLI diamonds certified?
Every OENLI diamond over 0.25ct ships with an independent IGI or GIA grading report recording its 4Cs, and each stone is laser-inscribed with a serial number matching the certificate. You can scan the QR code on your certificate to view the report online.
How long does shipping take?
Ready-to-ship items dispatch within 24 hours and arrive in 3–7 business days worldwide, fully insured. Made-to-order and custom pieces are hand-finished in 10–21 days. Orders over $500 ship free.
What is your return policy?
You have 60 days from delivery to return or exchange any piece in its original condition for a full refund. Custom-made pieces can be exchanged but not returned.
Is resizing included?
Yes — free resizing within 60 days of delivery for most styles. After that, lifetime warranty covers resizing, rhodium re-polishing and repairs for craftsmanship defects.
Will I receive a grading certificate with loose stones?
Yes. Every loose diamond ships with its original IGI or GIA certificate, and we add a free independent confirmation report at no extra cost. Loose stones under 0.25ct include an OENLI laboratory report.
Do lab-grown diamonds lose value or change over time?
Lab-grown diamonds are permanent — same durability as mined. They do not cloud, yellow or change with wear. Their resale market differs from mined diamonds, which is why they cost far less to begin with.
How do I care for my jewelry?
Clean with mild soap and warm water, or an ultrasonic cleaner for rings without pavé. Store pieces separately. Bring any OENLI piece to us for a complimentary professional cleaning anytime.