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All ILLY pieces are crafted in 925 Sterling Silver and then plated with medical‑grade Platinum or Gold for enduring shine and hypoallergenic wear.

Moissanite: Exceptional fire and hardness (nearly diamond‑level), premium durability.Cubic Zirconia (CZ): Brilliant and affordable, though softer than moissanite.Natural Diamond: Ultimate hardness and sparkle, carries intrinsic rarity and value.

Our advanced PVD plating lasts 24 months under normal wear. We offer affordable replating services to restore your piece to its original brilliance.

Yes—Sterling Silver is nickel‑free, and our plating meets medical‑grade standards to minimize irritation.

To preserve plating and shine, remove jewelry before swimming, showering, or applying lotions, perfumes, or cleaning products.

Select your item → choose size/color → Add to Cart → Checkout → receive confirmation email.

Domestic: 1–2 business days to process; shipped within 24 hours.International: 5–7 business days via economy shipping; expedited options available.

We offer free domestic shipping on orders over $50 and free international shipping on orders over $200. Standard rates apply otherwise.

Yes—COD is available domestically for a small fee. We also accept credit/debit cards, bank transfers, and major e‑wallets.

Visa, MasterCard, American Express, PayPal, Apple Pay, Google Pay, and select installment partners.

Yes—0 % interest installments through our financing partners on orders above $100 (progress).

Enter your code at checkout. Newsletter subscribers receive a unique 30 %–off code for their first order.

No—our system applies the single best promotion per order to ensure fairness and protect product value.

Soak in warm, soapy water for 5–10 minutes, gently brush with a soft toothbrush, then pat dry with a lint‑free cloth.

Remove jewelry before contact with chlorine, bleach, acetone, or strong perfumes to protect plating and stones.

Store each piece in its individual pouch or box, in a cool, dry place away from direct sunlight.

Yes—we provide cleaning, polishing, and replating at any showroom or by mail for a nominal fee.

We recommend a maintenance check every 24 months, depending on wear frequency.

We accept free returns within 7 days of delivery if items are unworn and in original packaging.

Contact us via live chat or email with your order number and photos; our team will guide you through the process.

Manufacturing defects—including plating peeling, faulty clasps, and loose settings. Damage from misuse is excluded.

First 30 days: ILLY covers both return and reship fees.After 30 days exchanges up to 2 years: customer covers return shipping; ILLY covers reship.

Yes—personalized engraving and bespoke designs are available; turnaround is 5–14 business days.

Absolutely—contact our styling team to discuss special finishes or gemstone selections.

Reach us 24/7 via live chat on our website, call +84 904 026 088, or email support@illyjewelry.com

Rings: Use our printable ring sizer or refer to the diameter chart on our site.

Bracelets/Necklaces: Measure your wrist/neck at its widest point and add 1–1.5 cm for comfort.

We correlate average body‑weight ranges with finger diameters to cover sizes 4–10 for most customers.

Yes—you can request a complimentary ring‑sizer kit by mail, or visit any showroom for a free fitting.

We provide one complimentary ring resize (±1 size) within 7 days of delivery for non‑gemstone styles.

Our guide is accurate to ±0.2 mm. For complex finger shapes, we recommend in‑store fitting or using our ring‑sizer tool.