At Astteria, we take pride in offering exceptional service and support — including free, fully insured worldwide shipping.
We ship worldwide, reaching customers throughout North America, Europe, Asia-Pacific, the Middle East, and other key regions worldwide.

Estimated delivery times range from 1 to 7 business days, depending on the destination and the specific item’s location.
Please note that custom-made orders may take up to 21 business days in total, including production and delivery.

Shipments can only be delivered to physical addresses. P.O. Box deliveries are not available, as a signature is required upon receipt.

For customers in the USA, import duties are fully covered by us.
Sales tax is collected only for orders shipped to New York.
For all other states, we do not collect sales tax, and customers are responsible for any taxes due in their state.

For Hong Kong, all applicable taxes are included in the price.
For China, import duties are calculated and collected at checkout.
For Israel, import taxes and VAT are collected at checkout.

For all other countries, import duties and taxes are not included in the price and are not collected at checkout. Customers are responsible for any charges assessed by their local customs authorities.

We offer a 100% money-back guarantee for returns made within 30 days of receiving the product.

Customers outside the USA are responsible for reclaiming any paid customs duties or taxes directly from their local authorities.
We provide free return shipping within the USA.
For international returns, customers should contact us for guidance and return-shipping arrangements.

To receive a full refund, the following must be provided:

• The original certificate included with the item
• The item in undamaged condition

Please note that bespoke items can be returned, but 50% of the cost associated with producing the bespoke setting will be deducted from the refund.

At Astteria, buyer satisfaction is essential to us. For this reason, we offer a jewelry upgrade service. If you purchase any piece from us and decide in the future to exchange it for a higher-priced item, you may apply the full value of your original purchase toward the new piece.

Upgrades are available under the following terms:

1. The upgraded item must have a value of at least twice the price of the original piece.
2. A $250 renewal fee applies to the original item.
3. If you complete an upgrade but later decide you prefer your original jewelry, you may return the upgraded item within 30 days for a full refund, provided your original piece is still available.

We offer the option to reserve items in advance. If you would like to secure a piece, please contact us and we’ll be happy to assist.

Appraisals are conducted by Astteria (based on retail price) for every order and are signed by a certified gemologist.

Most of our items come with a gemological report (usually GIA for diamonds, GRS/Gubelin for Gemstones.) The relevant certification can be found on each product page. If you have any questions regarding the certification, please do not hesitate to reach out for assistance.

We provide a one-year warranty for all jewelry pieces and will fix any type of manufacturing defect for free, excluding the cost of lost diamonds. If it wasn’t caused by a manufacturing defect we will notify you regarding the type of repair that is needed and whether or not it will be at cost. Astteria will not honor the warranty of a jewelry piece that was maintained, repaired, or resized by anyone other than Astteria. We do not provide a warranty for jewelry pieces damaged through typical wear and tear or when worn and used incorrectly.

Astteria offers a variety of secure and convenient payment options to suit your preference:

• Credit Cards — All major cards accepted
• Cryptocurrency — Processed through Coinbase Commerce
• Google Pay
• Apple Pay
• Shop Pay
• Installment Plans — Powered by Affirm
• Wire Transfer — An additional 5% discount is available; please contact us for details

We offer a free ring resizing when possible, depending on the design, the current ring size, and the requested size.

Shortening a bracelet is free of charge. Lengthening a bracelet, however, usually requires extra payment due to additional stones or gold that are needed.

Astteria will consider buying your pre-owned diamonds and gemstones when the following criteria are met:

• A GIA or equivalent certificate is provided
• Clear pictures/videos are available
• An asking price is submitted

We accept visitors by appointment only in the following locations: HK, New York, Tel Aviv, and Shanghai. Inspection in our offices or in 3rd party premises (like Brinks) is possible. Please contact us for details.