Diamond Ave NYC

Find answers to common questions our customers ask about our products, jewelry quality, warranty, shipping, returns, customization options, and care instructions. Learn more about materials, sizing, and how to care for your jewelry to ensure it lasts a lifetime.

Frequently Asked Questions.

Our jewelry is crafted using high-quality materials, including 14k and 18k gold, and ethically sourced natural diamonds and gemstones.

Yes, all our diamonds come with certifications from reputable gemological laboratories such as GIA, HRD, or IGI, ensuring their quality and authenticity.

Yes, we provide custom design services to create unique pieces tailored to your preferences. Please contact our customer service team to discuss your ideas.

Please visit a local jeweler for an accurate measurement.

We accept returns within 7 days of receiving your order for a full refund, provided items are in their original, unworn condition with all certifications and packaging included. Returns made within 8-30 days are subject to a 15% restocking fee. Custom-made, engraved, or resized jewelry is not eligible for return.

Since all our jewelry is made to order, please allow 10-15 business days from the date of your order to receive your item. This timeframe includes crafting, quality assurance, and shipping preparation.

Yes, we offer secure and reliable shipping options for international customers. Delivery times may vary based on location and customs procedures. Additional duties and taxes may apply and are the responsibility of the recipient.

Yes, all items are shipped with insurance to protect your purchase during transit.

To maintain your jewelry’s brilliance, clean it regularly with a soft cloth and store it in a dry, protected space. Avoid exposing your pieces to harsh chemicals, excessive heat, or abrasive materials. Do not wear your jewelry in swimming pools, hot tubs, or other environments containing chlorine, as it can damage metals and gemstones.

Yes, we offer repair services for jewelry purchased from Diamond Avenue NYC. Costs vary based on the type of repair needed. Please contact us for an evaluation and quote.

Ring sizes can be adjusted for a fee of $50-70 for most models. Adjustments must be expressly authorized by us can be arranged through our customer service team, who will guide you through the process. Please note that certain designs may have limitations for resizing.

We accept major credit cards.

We use industry-leading encryption technologies to protect your personal and payment information. Transactions are processed through certified payment gateways, ensuring your data remains secure at all times.

Yes, all our jewelry comes in elegant packaging suitable for gifting.

Our dedicated support team is here to assist with all your jewelry needs. You can reach us at info@diamondavenuenyc.com.

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              Terms & Conditions

              Demati supplies products listed on the Demati, and Demati websites, and in our stores under the following Terms and Conditions. Please read these Terms and Conditions, and our Privacy and Cookie Policies carefully before using any of our websites, or ordering from us.

              The Terms and Conditions apply to your use of any Demati website and to any products you purchase from them; regardless of how you access the website, including any technologies or devices where our website is available to you at home, on the move or in store

              We reserve the right to update these Terms and Conditions at any time, and any updates affecting you or your purchases will be notified to you, by us in writing (via email), and on this page.

              The headings in these Conditions are for convenience only and shall not affect their interpretation.

              We recommend that you print and keep a copy of these Terms and Conditions for your future reference...