Diamonds are one of the hardest natural substances found on earth, formed by the elemental forces of heat and pressure up to 50 miles below the earth's surface more than three billion years ago. Falling under the Zodiac sign Aries, this universally adored precious stone is 140 times harder than sapphire and ruby, which explains why it is symbolic the world over for everlasting love.

The' brilliance' and 'fire' within a diamond is caused by its high refractive index - the highest of any naturally occurring gemstone - so the light will bounce and reflect within the stone, creating that show-stopping 'sparkle' effect. Here's everything you need to know about our diamonds…


A diamond's value, rarity and beauty are determined by 'The 4 Cs', a universal method for assessing the quality and characteristics of any diamond anywhere in the world.

Rose Gold rings with diamonds

A diamond's cut refers to its ability to reflect and refract light through facets within the precious stone. The way that a diamond is cut - its angles, proportions, symmetry and faceting - all affect how much it sparkles. The cut is what brings a diamond's soul to life. Our diamonds are cut into a round shape, with 17-18 dazzling facets to refract as much light as possible, unlocking their maximum brightness.

Rose Gold necklace with diamonds

A perfect diamond is near impossible to find; nearly all diamonds contain natural inclusions, and the visibility and number of these determine its clarity. The fewer the inclusions, the higher clarity grade and the more valuable the stone. We use slightly included stones with a clarity of I1 and due to their size, these aren't visible to the naked eye and don't affect the diamonds' sparkle.

Rose Gold stacking rings with coloured diamonds

Graded on their lack of colour, the most valuable and sought after diamonds are colourless, with the exception being rare stones with strong colour traces such as yellow, blue and pink. Our diamonds are H/I colour, which is 'near colourless' on the scale and gives them a radiant white glow

Rose Gold bracelet with diamonds

A Carat (ct) is a unit of measure used to weigh the diamonds. One carat is equivalent to ⅕ of a gram - the higher the carat of a single stone, the bigger it is. You can find the carat weight of each piece in its style description.


The diamonds we choose to use in our jewellery are all hand-selected. Each one is then cut from the rough by artisan skilled craftsman, and carefully set by hand.

We pavé set all of our diamonds, which is formed of many small, simple round diamonds set closely together for extra sparkle. Bringing life, fire and brilliance to our diamonds, this elegant setting enhances the diamond's shine, creating a continuous dazzling look.



We're dedicated to ensuring that all our treasured diamonds are ethically sourced, and we are proudly invested in our supplier relationships, supporting their artisan craft and working closely with them to ensure they stay true to our exacting standards.

Monica Vinader, and all of our diamond suppliers are proud members of the Responsible Jewellery Council, which requires a transparent supply chain, and social compliance audits. Our stones are sourced through suppliers who adhere to the Kimberley Process and the World Diamond Council's System of Warranties. All our suppliers are also compliant with United Nations resolutions, so you can rest assured that each Monica Vinader diamond is not only of the highest quality, but also brought to you fairly.