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Questions? Ask Our Team

We understand that purchasing high value, supreme quality diamond jewellery online is something with which not everyone will be comfortable. Our products and educational videos are an excellent way of browsing our array of products, however, you may still want to view each item in person in order to feel more comfortable with exactly what you are buying and to make your experience a more pleasurable and personal one.

Our easy-to-follow booking system enables you to simply select the item(s) you would like to see in our showroom, along with a date and time, convenient for you.

Please note that although our showroom houses a vast array of our products, it may not have every single item in stock. In order to avoid disappointment, please be sure to input the product ID of the item you would like to see. Should any item you choose be out of stock, we will contact you to discuss alternative options.


Book An Appointment

Located in the heart of London’s jewellery district, Hatton Garden, our showroom houses an impressive array of samples and our expert consultants will be on hand to provide you with information on our products as well as guidance and advice to help you choose the piece that best suits your requirements.

A member of our team will call you to confirm that your appointment time has been reserved.

Contact Details:
Call Us On
UK:   020 8004 8538
Outside of UK:  + 44 (0)20 8004 8538
Find Us At:

Wonderfully Diamonds

(Offices)  27 Old Gloucester Road,
London, WC1N 3AX.
(Showroom Only) Hatton Garden,
LondonEC1N 8SB 
Opening Hours: 

Mon - Thurs 

Closest Stations: 

Farringdon (Underground and Rail)

Chancery Lane (Underground)

Book An Appointment

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Carat refers to the weight of a diamond, not the size. How much does one carat weigh? One carat equals 0.2 grams or 200 milligrams. Please note that carat should not be confused with ‘Karat’, which refers to the purity of gold. Carat does not necessarily reflect the size of the diamond, as there are other factors that affect the size of a diamond – the distance across the top of the diamond and the diamond’s cut grade. Diamond shapes also have an impact on how large an individual diamond appears. Elongated shapes tend to look bigger than round shaped diamonds of the same carat weight.

What carat weight should I choose?

When choosing a diamond for a ring, it is important to consider the setting style, her finger size and your budget. The diamond may appear different in size depending on the type and proportion of the setting. Slender and streamlined settings enhance the prominence of the diamond, making it appear larger than the solid settings. It is also worth considering the finger size. The slender the finger, the larger the diamond will appear.  If you have a strict budget and you prefer a larger carat weight, Wonderfully Diamonds recommends you choose a diamond with a lower grade in Colour and Clarity and a good Cut.