Good things take time. Since every piece is made-to-order, our standard production time is 12-15 business days. Including shipping, please allow 4-5 weeks for delivery.

Yes. We offer a Rush Service for $150. This prioritizes your ring in our factory, reducing production to 10-12 business days. With expedited shipping, you can expect your ring in about 3 weeks.

We want to be completely transparent:

• USA: No duties.
• International: Yes. As this is an international shipment, your local customs office may charge import duties and sales tax, which are the responsibility of the recipient.

Yes, we know the importance of a surprise. Your order ships in a plain, unmarked external box. The shipping label will not mention "Jewelry" or "Diamonds" to keep your secret safe.

All shipments within the US will ship either via USPS or FedEx. We want to make sure your package arrives to you safely, and since we are shipping delicate fine jewelry, want to be sure the correct recipient is receiving it so an adult signature is required upon delivery. If you won’t be home to sign for your package, we are happy to send it to wherever will work best for you. Shipments will be delivered in 1-3 business days depending on the courier. All packages that we ship are fully insured.

A tracking number for your order will be sent via text when the order is ready to for shipping. You can keep track of the status of your delivery with this number.

Yes, we offer a 48-hour grace period. You may cancel or modify your order for a full refund within 48 hours of placement.
After this window, our artisans begin the custom production process specifically for your piece, and we are unable to accept cancellations or changes. Please email hello@highlinediamond.com immediately if you need assistance.

Yes you can! An inscription is a great way to personalize your ring or any piece of jewelry. Some common inscriptions include special dates, nicknames.

We strongly advise against using string or paper strips as they are often inaccurate. For the most precise fit, please visit our Size Guide to order an official sizer or view detailed measurement instructions.

We want your ring to fit perfectly.
We offer one complimentary resizing within one year of delivery. Simply email our team at hello@highlinediamond.com, and we will guide you through the secure shipping instructions and process.

Our warranty permanently covers any manufacturing defects. Additionally, if any small accent diamonds (pave stones) fall out during normal wear, we will replace them for free, for life.(Note: Warranty does not cover loss of the center stone or damage from trauma/accidents.)

Your Satisfaction, Guaranteed
At Highline Diamond, we take immense pride in the craftsmanship of every piece. We want you to feel complete confidence in your purchase.

7-Day Return Window
If you are not entirely satisfied with your selection, you may initiate a return within 7 days of delivery.
Please note that return shipping fees are the customer's responsibility, unless the item is received damaged or incorrect.

Made-to-Order & Restocking
Because each piece is individually handcrafted based on your specific diamond and setting choices, returns are subject to a 30% restocking fee. This fee allows us to cover the intricate labor, craftsmanship, and bespoke handling involved in creating your unique jewelry.

Conditions of Return

• Items must be in their original, unworn, and pristine condition.
• All original security tags, diamond certificates (IGI), and luxury packaging must be included.
• Any item showing signs of wear or that has been resized/altered cannot be accepted for return.

For full terms and conditions, please visit our [Return Policy].

To keep your jewelry sparkling, we recommend removing it before showering, sleeping, exercising, or applying lotions.
For a quick clean at home, simply use warm water, mild dish soap, and a soft toothbrush to gently scrub your piece.
For detailed instructions on specific stones and maintenance, please visit our [Jewelry Care Guide].

Yes! Lab grown diamonds, also known as laboratory grown diamonds or ethical lab grown diamonds, are chemically identical to mined diamonds or natural diamonds. They offer the same level of beauty and are an extremely popular choice.

The only difference between a mined diamond and a lab grown diamond is their origin. Lab grown diamonds are an ethical and sustainable option, offering the same fire, clarity, and carat weights as mined diamonds.

Lab grown diamonds are a sustainable option, created using advanced technology under high pressure, which is much more ethical than traditional diamond mining methods.

Absolutely! All of our lab grown diamonds are evaluated on cut, clarity, colour and carat weight and are IGI certified. Most of our lab grown diamonds are certified by the leading lab grown gemological institute, IGI. The IGI is the most popular lab-created diamond certifier and is used by most of the lab market, creating a consistency in grading across the lab grown diamond industry. This allows the consumers to easily compare lab grown diamonds and to be assured they’re getting what they’re paying for.

You don't need to stress over the 4Cs because we’ve already done the hard work. We only curate the top 5% of the pyramid:

• Color: D/E/F (Colorless) only. No yellow tints.
• Clarity: VS+ (Eye Clean) only. No visible inclusions.
• Cut: Ideal/Excellent only. No light leakage.