A lab-grown diamond is just that, a diamond. It consists of carbon atoms with the same crystal structure, chemical composition, and optical and physical properties as a mined diamond.

A lab-grown diamond is a fantastic feat of technology. First, a diamond seed is placed in a sealed chamber and heated to around 800 degrees Celsius. Next, the chamber is filled with a carbon-rich gas, breaking molecular bonds. Finally, pure carbon adheres to the seed and crystallises, forming a diamond with the same scintillation, flash, fire, and brilliance as earth-extracted diamonds.

The only difference between mined and lab-grown diamonds is that a lab-grown diamond is created under controlled conditions. This allows for a more transparent supply chain and reduces carbon footprint.

Lab-grown diamonds have no nitrogen in the lattice and are classified as Type IIa. Diamonds entirely devoid of impurities are rare, and only 5% of all mined diamonds can compare.

All our jewels are designed and crafted at our state-of-the-art facilities in India. In addition, our parent company, Walking Tree, has over 100 years of combined experience in diamond cutting, designing and crafting jewels, a savoir-faire that we have brought to Europe in the form of Unsaid.

Our diamonds are grown in our Surat, India lab before being taken to our Mumbai factory, where we have been cutting diamonds for three generations. Our local artisans bring decades of knowledge and passion to every Unsaid diamond, pushing boundaries yearly.

Every round diamond weighing 0.5 carats or more comes with a diamond certificate with H+ colour and VS+ quality. The certificate is issued by the International Gemological Institute (IGI), an independent laboratory and official organisation. This veritable identity card indicates your diamond's composition of the 4Cs while providing supplementary information.

The 4Cs—colour, clarity, cut, and carat weight—are the globally accepted standards for assessing the quality of a diamond.

Colour: refers to the natural tint inherent in white diamonds. Most white diamonds have a slight shade of yellow, and diamonds come in various colours.

Cut: refers to how a diamond’s facets interact with light and are the only criteria that depend entirely on human hands. The cut enhances all of a diamond's qualities and reveals the perfect balance between brilliance, fire, and scintillation.

Clarity: refers to the number, size, position, and colour of the inclusions visible in the stone under a 10x magnifying glass. The more inclusions there are, the less clarity and value of the stone since inclusions affect the diamond’s ability to reflect light.

Carat: refers to the weight of a diamond, not the size. One carat equals 0.20 grams, which has been an international standard unit of measurement since 1907. The word "carat" comes from the seeds of the carob tree, used in antiquity to measure the weight of a diamond.

If you wish to return or exchange a product you must notify the Unsaid Customer Service team at hello@unsaid.com within 14 days of receiving the product. Any custom-made and engraved items cannot be refunded or exchanged. Separately, each standard purchase can only be exchanged once.

Unsaid submits all returned products to a strict quality check. The jewellery must not be worn and should be in its original box with the certificate of authenticity and receipt. Please ensure the product is protected when returned. The original payment method will be refunded if your return meets the quality check. Unsaid refuses refunds for items not returned, incomplete, or in any condition other than original. For those wishing to exchange, if your return meets the quality check you will receive a new product or a gift card.

Unsaid provides free DHL return labels for customers in the European Union and the United Kingdom. For all other countries, please contact a local carrier to arrange your return. If purchased at an Unsaid store, you may exchange the product at the nearest Unsaid store within the country of purchase.

Please return the product(s) to the below address:

Unsaid Jewels

De Burburestraat 20

2000 Antwerp

Belgium

Please notify the Unsaid Customer Service team at hello@unsaid.com within 14 days from the date the product is received if you wish to exchange it for another product or size.

An item can only be exchanged once. Personalised and engraved items cannot be exchanged or refunded. Please refer to our Exchange & Returns policy for more details.

Unsaid takes every effort to make each jewel special and unique, down to the moment it’s wrapped. All jewels are wrapped in Unsaid’s signature packaging and can be even more precious with a personalised engraving on select styles or a handwritten note.

Please note: invoices are not included in the packaging. Your order confirmation with proof of payment is received digitally first, and once shipped, is your invoice shared via email.

If the recipient of your gift wishes to exchange the item, they should contact our Customer Service team at hello@unsaid.com where they will be delighted to guide them through the process. Please note that custom-made or engraved items cannot be refunded or exchanged.

All personal information is handled with strict confidence, and every transaction on our website is secure. In addition, an SSL encryption system is in place to protect personal data and payment information, and we never save any credit card information.

We reinforce the security of payments through a 3D Secure system for cards equipped with this system. Please contact your bank directly for any questions regarding your 3D Secure system code or process.

All Unsaid jewels come with a jewellery certificate which details the specifications of the jewel. To avoid counterfeits, we strongly suggest you always purchase your jewellery from an Unsaid store or authorised retailer.

Every round diamond weighing 0.5 carats or more comes with a diamond certificate with H+ colour and VS+ quality. The International Gemological Institute (IGI), an independent laboratory and official organisation, issues each Unsaid certificate.

If you are unsure about sizing, please look at our Sizing Guide before placing your order.

Our expert team is also available to give advice. You can email us at hello@unsaid.com, call +33 6 95 11 99 76 or book a virtual appointment Tuesdays to Saturdays, 10 am - 5 pm.

Regular maintenance is the best way to ensure the longevity of your precious jewels. In everyday use, your jewellery might be subject to stress, such as bumps, scratches, UV radiation, dust, sweat, and fluctuations in temperature. For this reason, we recommend you have your jewellery cleaned and serviced every three years by bringing it to one of our stores or an authorised distributor.

Unsaid offers a range of repair services for any products purchased in our stores, from unsaid.com, and via authorised distributors. For repairs, deposit your Unsaid jewellery in our after-sale services (care services) in our stores where we will systematically repair them in our workshops by our artisans.

The “Our store” section on unsaid.com allows you to locate your nearest store. If you do not have an Unsaid store near you or you cannot travel, please contact our Customer Service team by email at hello@unsaid.com.

Handle your jewellery carefully to keep its beauty and brilliance. Protect your jewellery from being scratched against hard surfaces and sudden movements that could cause damage to the stone or setting. Store your jewels in its Unsaid box to avoid scratching and entangling.

We recommend removing all jewellery when doing household chores as repeated contact with detergents and bleach can damage precious metals, also before engaging in sports or getting in contact with water.

To clean a stone or a diamond pavé, use a mild non-abrasive cleaner and a soft toothbrush under hot water to gently remove dirt without damaging the jewellery.