Lab created diamonds are identical to natural diamonds, displaying the exact physical, chemical, and optical properties as those formed within the Earth’s crust to exhibit the same fire, brilliance, and sparkle as mined diamonds. Therefore, it is impossible to distinguish between lab diamonds and natural diamonds with the naked eye. Man-made diamonds are grown under controlled laboratory conditions, using cutting edge technology to replicate the natural conditions in which diamonds are formed within the Earth’s crust. 

These highly controlled conditions mean that lab diamonds hold no impurities, flaws, or defects which can be acquired during formation of natural diamonds, resulting in enhanced purity, brightness and whiteness compared to their mined equivalent. Lab grown diamonds provide a conflict free, sustainable, and environmentally friendly alternative to natural diamonds. Each of our lab diamond engagement rings feature a guaranteed record of how and where each diamond is produced, offering full transparency and traceability for your peace of mind. In addition to this, each lab created diamond has an IGI or GCAL certification to verify its exceptional quality and to provide you with the confidence that your lab diamond has been expertly crafted. 

Read our guide to lab diamond jewellery.

Moissanite, chemically known as Silicon Carbide, was first discovered within a 50,000-year-old meteorite crater. 

Extremely rare in nature, the majority of moissanite gemstones formed today are lab grown. It can take up to three months to develop a single moissanite gemstone, grown by imitating the conditions required for natural moissanites to form within a highly controlled laboratory setting. A diamond simulant, moissanite appears almost indistinguishable from diamonds, however, does not possess the same chemical or physical properties as its rival gemstone. 

Moissanite is a unique gemstone, beholding its own distinctive properties that display unrivalled fire and brilliance, as well as exceptional durability, rating second only to diamonds on the Moh’s hardness scale. Moissanite offers cost savings compared to a diamond. 

Read our ultimate guide to moissanite gemstones.

We offer free ring sizers to customers within the UK & Europe. 

This plastic multisize ring sizer acts like a belt, placed over the finger and adjusted to fit like a ring, to indicate your ring size for a perfect fit. 

It is extremely important to us that your ring is a perfect fit, therefore, if for any reason you’re Stone Lab engagement ring isn’t a perfect fit, we offer a complimentary one-time ring resize within 30 days of receiving your order.

Yes, we offer engraving on the vast majority of our engagement rings and wedding bands. Please get in touch to request this service. 

We recommend no more than 15 characters for engraving of standard sized rings. Please note that engraved rings are excluded from our returns policy and therefore cannot be returned or exchanged.

The Stone Lab’s expertise lies in bespoke jewellery design. Whatever your desire it can be achieved with the help of our
team who will guide you through the bespoke design process from start to finish. 

Our established design process ensures first class support from our bespoke team from design conception to delivery. 

We offer one-on-one consultations with our design experts, unlimited design alterations and a 3D wax ring resin for you to approve before purchasing your perfect bespoke ring.

We are able to customise all standard rings to accommodate your personal preferences. 

Please note that personalised designs are excluded from our returns policy and therefore cannot be returned or exchanged.