Agvana Customer Help & FAQs | Lab Diamonds & Jewelry

We provide Free Express Shipping on all worldwide orders with no minimum purchase required.
United States: 5-8 business days (Fulfilled via USPS / FedEx / UPS directly from our operations center).
Canada, Australia, Europe: 10-15 business days.
Rest of the World: 10+ business days.

*Please allow 1-2 business days for order processing. ( Once dispatched, a tracking confirmation email will be sent within 1-2 business days.)

Note: Orders shipped to Puerto Rico, Virgin Islands, Hawaii, Guam, and Alaska cannot be delivered via express.

* Free Shipping On all Orders. Enjoy shopping at Agvana.com

* Please allow 1-2 business days for your order to be processed. If your order was placed after 4 pm EST, it will begin processing on the next day.

*All estimated shipping times do not include clearance/customs delays

* We do not ship to APO/FPO addresses

* All shipments will be dispatched from New York when stocks are sufficient; otherwise, orders will be dispatched from our Hong Kong operation center through DHL/FedEx.

Orders may incur local duties depending on your local customs authorities; the fee will show on the checkout page.

You can track your order in two convenient ways:

Registered Users: Sign in to your Agvana account and navigate to My Orders to view real-time shipping updates.

Guest Checkout: As soon as your order is packed, we'll email you your tracking number and carrier tracking link. Alternatively, click the chat button on our homepage for a quick inquiry (if the order has already been shipped).

If you need to make any changes to your order, including adjusting or cancelling the order, or changing the shipping address, please reach out within 24 hours of placing the order. Please note that because our team works hard to dispatch your order as quickly as possible, we may not be able to cancel or update it upon request.

Should your order not be processed by the estimated shipping date, our Customer Happiness team will be in contact with an update within 24-48 hours (keep an eye on your inbox!). Keeping you informed is a top priority for us, and we appreciate your patience during this busy time of year. As always, feel free to reach out to us via Live Chat, email(service@agvana.com), or SMS (+1-646-488-6567) should you have any questions.

We offer a 60-Day Hassle-Free Return & Exchange Policy for all unworn items in their original packaging. If you are not completely satisfied with your purchase within 60 days of order placement, you may initiate a return or exchange.

Depending on how you placed your order, please follow the steps below:

Registered Users: Sign in to your Agvana account, navigate to "My Orders", select the item(s) you wish to return, and follow the prompts to generate your return label.

Guest Orders (No Account): If you checked out as a guest, simply reach out to our Customer Service team at service@agvana.com with your order number and the item(s) you’d like to return. Our team will generate and send your return details directly to your inbox.

If the situation is that the customer is responsible for shipping costs. For US domestic returns, return packages are sent directly to our NewYork office:

AG/Fanci Design Inc
5 E 57th St, FL20,
New York, NY 10022, United States

(We recommend using a shipping method with tracking to ensure safe and timely delivery.

Once your return package is delivered to our New York facility and passes our quality inspection, your refund will be issued to your original payment method within 7 business days.

Please ensure you send back the correct and complete item(s) for your return. Due to logistics and customs restrictions, Agvana cannot reship or store non-Agvana items mistakenly sent as returns.

We stand behind the quality and craftsmanship of our fine jewelry. Every Agvana piece comes with a 2-Year Limited Warranty starting from the date of purchase.

What’s Covered: Manufacturing defects, structural faults, and loose stone settings.

What’s Excluded: Normal wear and tear (e.g., scratches, bent bands due to heavy pressure), lost items, theft, chemical exposure damage, or repairs performed by third-party jewellers.

While our S925 sterling silver and 14K gold pieces are engineered for high durability, proper care ensures lifelong brilliance:

Avoid contact with harsh chemicals, perfumes, chlorine (pools), and heavy sanitizers.

Remove jewelry before heavy physical exercise, swimming, or sleeping.

Clean gently using a soft microfiber cloth and mild, warm, soapy water. Visit our Jewelry Care Guide for detailed maintenance steps.

Yes, 100%. Agvana lab-grown diamonds possess the exact physical, chemical, and optical properties as natural mined diamonds. They exhibit identical brilliance, fire, and hardness (10 on the Mohs scale). The only difference is their origin—lab diamonds are grown in controlled technological environments without mining impact.

Yes! Our lab-grown diamonds are 100% ethically sourced and conflict-free. By recreating the natural diamond creation process in high-tech laboratories, we eliminate the heavy environmental impact and land disruption associated with traditional diamond mining.

Yes. Major lab-grown diamond pieces (including engagement rings and classic diamond jewelry over 1.0 carats with K gold material) are independently certified by the IGI (International Gemological Institute). Each certified piece comes with an official digital or physical grading report detailing its Cut, Color, Clarity, and Carat weight.

Just like natural diamonds, every Agvana lab-grown diamond is evaluated using the industry-standard 4Cs:

Cut: Determines how light reflects through the diamond. We prioritize Ideal and Excellent cuts for maximum brilliance and fire.

Color: Evaluated on a scale from D (colorless) to Z. Agvana exclusively selects high-grade colorless and near-colorless diamonds (D-F range).

Clarity: Measures natural internal features (inclusions). Our diamonds are selected in VS or VVS grades, ensuring eye-clean perfection.

Carat: Refers to the physical weight of the diamond. We offer versatile carat weights suitable for subtle daily wear or statement engagement styles.

The detail, please check our 4C'S guide.

We exclusively craft our collections using premium, hypoallergenic materials:

Solid 14K Gold: Built for lifelong daily wear without color fading.

S925 Sterling Silver: Plated with thick protective precious metals (Rhodium/Platinum) to resist oxidation and daily tarnishing.

Ever-changing factors such as global supply chain disruptions, inflation, and fluctuations in the cost of raw materials such as gold and diamonds may impact our prices from time to time. We continue to monitor production factors and do our absolute best to always give you high-quality products at accessible prices.

Both metals are premium choices depending on your budget and wearing habits:

14K Solid Gold: Consists of 58.5% pure gold. Highly durable, water-resistant, and tarnish-proof—making it ideal for daily wear, engagement rings, and lifetime keepsakes.

S925 Sterling Silver: A high-quality precious metal coated with extra layers of Rhodium to prevent tarnishing. Perfect for accessible fine jewelry and trend-forward pieces.

To ensure a perfect fit, you can measure the inside circumference of a well-fitting ring or wrap a strip of paper around the base of your finger and measure the length in millimeters. Refer to our detailed Ring Size Guide page for an international conversion chart (US, UK, EU, JP sizes).

Yes! We offer bespoke jewelry services and custom ring sizing for special occasions, promise rings, and fine jewelry pieces. Please contact our design consultants via Live Chat or email with your specific design ideas or size requirements.

Our team is dedicated to assisting you across multiple channels:

Email: support@agvana.com (Replied within 24 business hours)

WhatsApp / SMS: +1-646-488-6567

Live Chat: Click the chat widget at the bottom-right corner of any page.

At AGVANA, we offer several secure and convenient payment options.

1. Credit & Debit Cards

We currently accept:

* Visa
* Mastercard
* American Express
* UnionPay

2. Digital Wallets & Express Checkout

For a faster checkout experience, you can also pay with:

* Shop Pay
*Apple Pay
* Google Pay
* PayPal

3. PayPal

When you select PayPal, you may be redirected to PayPal to review and complete your payment. Depending on your location and eligibility, PayPal may also allow you to pay with an eligible credit or debit card without logging in to a PayPal account.

Secure Payments

All personal and payment information submitted on AGVANA.COM is encrypted and securely processed by our payment providers.

Taxes

Product prices displayed on AGVANA.COM do not include sales tax. Applicable sales tax will be calculated based on your shipping address and displayed separately at checkout before you complete your purchase.

1. Taxes

Product prices displayed on AGVANA.COM do not include taxes.

Applicable taxes are calculated based on the shipping address and displayed separately at checkout before you complete your purchase. The applicable tax rate may vary depending on the destination country, state, or province.

2. Import Duties & Customs Fees

For international shipments, import duties, customs fees, or other charges may apply depending on the destination country. These charges are separate from the taxes collected at checkout and may vary by country.

If applicable, any import duties or customs fees charged by the destination country's customs authority or carrier may be the customer's responsibility.

For information about potential import duties or customs requirements, please contact your local customs office.

3. Foreign Transaction Fees

AGVANA does not charge foreign transaction fees or additional international processing fees. However, your bank or card issuer may charge additional fees for international transactions depending on your card and account terms.

These fees are charged by your bank or card issuer and are not controlled by AGVANA.

Simply enter your discount code in the “Add coupon code” field in your cart before checkout.

Only one discount code can be applied to each order. If you enter another discount code, the newly entered code will replace the previously applied discount code.

Please note that discount codes cannot be combined with other discount codes or promotional offers unless otherwise stated in the promotion's terms.

Yes. Agvana gift cards can be used together with a discount code. Gift cards are a separate payment method and can be applied to an order after the discount has been applied.

Individual discount codes may have their own terms and conditions, such as minimum purchase requirements, product exclusions, or expiration dates.