Bespoke Engagement Rings

Spheni Switzerland’s clients especially appreciate the bespoke service for engagement rings as they are not accompanied by a jewelry sales person, but by a certified gem stone expert with a design and goldsmith education. This should not be underestimated, as it simplifies the conception of the engagement ring and offers a stressless and memorable experience. In contrast to a typical jeweller with a bricks and mortar business, Spheni Switzerland’s clients have access to a broad universe of gemstone producers, wholesalers and independent best in class designers.

“Throughout past experiences with our clients we realised how important it is not to only get to know our clients, but also their significant others. By doing so we ensure that both ring, and stone, have the right proportions, and equally, fit their personal style.”

Sylvia Quispe, gemstone expert

How it Works


Together we will define what options are possible for a certain budget. Furthermore we will educate you on diamonds or other requested gemstones to make you feel as comfortable as possible during the purchasing process.


Thanks to our broad network of diamond and gemstone suppliers & wholesalers, we will make sure you get the most out of your budget. Buying a diamond goes far beyond the 4Cs.


You will receive advice in different matters such as the design of the setting, choice of the right metal, metal colour or additional stones. We will work closely with you and make sure your center stone will be presented in the best possible way.

FAQ Engagement Rings

In Switzerland we usually meet our clients where it is most convenient for them. We have different meeting spots in many Swiss cities. For our international clients we are happy to travel and meet them personally if requested. But we also offer remote advisory over video calls, phone or e-mail. All our rings can be shipped by a fully insured courier (Malca Amit) to any location.

Category: Ring FAQ

Many people are not aware that diamonds and metals can indeed get damaged or the settings of the stones can loosen. Diamonds for example can chip or crack if they hit against a hard object.

We recommend the following:

    • Don’t wear your ring while showering or bathing and avoid contact with lotion, perfume, hairspray, sun screen, cosmetics etc.
    • Don’t wear your ring while cleaning, gardening, working out or hiking. Aggressive cleaning products, chlorinated and salt water could impact the color of the metals.
    • We strongly advise against swimming with your ring. Cold water makes your finger shrink and you risk it to slip off your finger.
    • Bring your ring to a jeweller once a year to get the settings checked. Daily use could loosen them.
  • Clean your ring by letting it soak in lukewarm, soapy water. Brush it with a soft toothbrush, rinse it and dry it with a soft cloth. Do not clean your ring with any abrasives or acid solutions.
Category: Ring FAQ

All our diamonds and gems above 1 carat will come with a certificate from GIA or another reputable laboratory.

Category: Ring FAQ

All bespoke engagement rings come with an in-house appraisal for your insurance. If you need help to insure your ring we can put you in touch with a specialist (in Switzerland only).

Category: Ring FAQ

The ring size is very important, especially to avoid resizing the ring after the proposal. Please get in touch with us and together we find a smart way to find their size. Upon request we can send you a ring sizer set.

Category: Ring FAQ

There are many options to buy diamonds online or through diamond dealers and it could seem like a very convenient and easy way to get a good deal. This being said, many of our clients experienced being more confused, however, after researching and visiting different diamond dealers, than to begin with. Looking at a pair of diamonds, for example, with exactly the same characteristics (4 C’s, as per the stones’ individual certificates), the prices varied significantly. An aspect easily overseen is that different types of laboratory certificates exist (e.g. GIA, IGA, …). Depending on the certificate, characteristics such as color could have the same letter grading (e.g. D, E, F, etc.), but not the same color (an “I” from one lab does not have to have the same color as an “I” from another lab). Helping you reach true comparability, supporting you beyond the 4 C’s and eventually enabling you to make a decision, is where we come in.

Category: Ring FAQ

An engagement ring contains many different elements and the design is very interconnected with the shape, size and color of your center stone.

To give you an indication of how many details can be adapted and chosen you will see below all possible elements involving an engagement ring:

For example the choice of the setting (solitaire, with side stones or halo) depends on the shape and size of the center stone. At the same time, the color of the center stone should be chosen in consideration of the metal of the future ring. Additionally, different metal colors can be combined (the prongs can have a different color than the shank of the ring). Because there are sheer endless possibilities, we are here to help you make the perfect combination of all these details to create the best possible engagement ring.

Category: Ring FAQ

Prices of rings vary very much and depend on what type of center stone, metal and design you are looking for. With a budget of ca. USD 30’000 you could create a diamond solitaire ring with around 2 carats (GIA certificate, brilliant cut, xxx excellent cut, H colour, VS2). This is about half of what you would spend at a high street jeweller. By looking for different diamond characteristics and designs we can help you optimise the final price.

Category: Ring FAQ

It very much depends on what you are looking for and how fast you can make decisions. We recommend to calculate with at least three months.

Category: Ring FAQ

Besides “I made this for you” being much more romantic than “I bought this for you”, there a many reasons to use our service to create one of the most significant rings of your life:

  1. You will get the maximum out of your budget, because we don’t have a fix stock of gems and can directly access diamond suppliers and skip middlemen within the supply chain of gemstones.
  2. You have the opportunity to let us find the perfect center stone for your significant other, instead of choosing from a limited selection.
  3. During the whole process we want to be your sounding board in helping finding out what might suit your significant other and what is technically feasible (e.g. smaller stones lend themselves to a higher setting). Because we are diamond experts, designers and goldsmiths at the same time, we have well rounded experience in all key elements surrounding an engagement ring.
Category: Ring FAQ

Our design and advisory service is free if you create and buy a ring with us. In case you need help for buying a ring elsewhere or wish an independent opinion on a gem or diamond, please get in touch with us. We are happy to make you an offer.

Category: Ring FAQ

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Thanks to Spheni Switzerland I was able to create a stunning pear shaped engagement ring. Their consultation helped me understand the options with regards to shape, colour, clarity and ring design, on what would have otherwise become a standard platinum brilliant cut ring. I would not have thought of using pink diamonds and pink gold on my own. I am very proud to see my wife wearing this stunning ring.                                                                                                                                                                                                                                                                                                                         



Finding the right diamond for my then-girlfriend, was quite the challenge. I knew I wanted to get a big stone, but realised quickly that despite my research, I was ill-prepared to handle the process of getting a custom ring made on my own. There are so many factors that impact the price of a diamond, that I felt lost. Spheni Switzerland did not only help me find the best stone for my budget directly from a wholesaler, but did a great job in helping me design and producing the actual ring. My fiancé’s mom cried tears of joy when she first saw this beautiful 3 ct. ring, that we made with lots of love.