Updated: July 30, 2026. Originally published: February 10, 2024.
An engagement ring is one of the most important decisions you'll make. A well-chosen one lasts for decades and, over time, transforms into a family story. There isn't one ideal ring for everyone; there's an ideal ring for a specific person. In this guide, we walk you through it step-by-step: stone, cut, setting, size, budget, and lead time. We write from the perspective of a workshop that designs and handcrafts engagement rings to order.
Where to start when choosing an engagement ring?
Start with the style of the person who will wear it, not with a ready-made design. Observe whether they wear delicate or bold jewelry, what color gold they prefer, and if they lean towards classic or modern styles. These three observations narrow down the choice more effectively than hours of browsing catalogs. You are buying something that is meant to stand the test of time, so this decision deserves a moment of genuine consideration.
Also, determine whether the proposal is to be a surprise or if you will choose the ring together. More and more couples are opting for a joint selection, especially when they have a specific stone in mind. Both approaches are good, and a custom design works well in either. At BELLER, we match the stone, setting, and gold purity to a specific idea, so you don't have to compromise between budget and what will truly be loved.
What stone for an engagement ring?
The most popular choice is a brilliant, which is a cut natural diamond. At BELLER, we work exclusively with natural brilliant diamonds of D-E color and VVS1 clarity. This is the highest practical standard: the stone is colorless and eye-clean, without compromise.
Brilliant diamonds above 0.3 carats come with a GIA certificate, from the world's most rigorous laboratory. Smaller stones receive a BELLER gemologist certificate. This way, you always know what you hold in your hand.
If you're looking for color, natural AAA grade gemstones are an alternative: sapphire, emerald, ruby. This is the highest quality class for colored stones. Remember that a larger stone doesn't always mean a more beautiful one: a well-chosen cut in a smaller but cleaner brilliant can sparkle more intensely than a larger, lower-grade stone. We write more about color selection in the guide sapphire, emerald, or ruby.
What do the 4Cs of a brilliant diamond mean?
The quality of a brilliant diamond is described by four parameters, known as the 4Cs: color, clarity, cut, and carat weight. Color indicates how colorless the stone is, with the scale starting at D. Clarity describes the number and size of natural inclusions. Cut determines the brilliance. Carat weight is the stone's weight in carats.
At BELLER, the standard is D-E color and VVS1 clarity, which is at the very top of the scale. This means you don't have to delve into the entire theory, as you start your stone selection from a very high quality threshold.
Natural brilliant or lab-grown?
This is the most common question today. A lab-grown brilliant has the same composition as a natural one, but it is created in a few weeks in a reactor, and its market value quickly diminishes. A natural diamond has matured for billions of years and retains its value. At BELLER, we choose only natural stones. A full comparison can be found in the article natural brilliant or synthetic.
Which brilliant cut to choose?
The cut determines how the stone reflects light, more so than its size. A round brilliant provides the most sparkle and is the safest choice. Oval and marquise cuts optically elongate the finger, while a cushion cut offers a soft, romantic character.
The round brilliant cut has the most refined play of light. Fancy cuts, such as oval, pear, or emerald, have a more distinctive character and can be more cost-effective per carat. The choice of cut is more a matter of style than rigid rules. We break them down in detail in the guide which brilliant cut to choose.
What setting and gold purity?
The classic solitaire setting highlights a single stone and suits any style. The pavé setting adds sparkle with tiny brilliant diamonds along the band. A bezel setting surrounds the stone with metal and offers the most secure protection for everyday wear, making it suitable for those who work a lot with their hands.
You can choose white, yellow, or rose gold, in 585 (14K) or 750 (18K) purity. Higher purity means more pure gold and a deeper color. The gold color should be well-matched to the jewelry the person already wears, so the ring harmonizes with it. Think about the wedding band right away, as it will be worn alongside the engagement ring, most beautifully in the same gold color and purity.
How to choose the engagement ring size?
If the ring is to be a surprise, the easiest way is to discreetly borrow a ring your partner already wears and measure its inside diameter. Fingers swell and slim down during the day, so it's best to check the size in the evening, at room temperature. If you hesitate between two sizes, choose the larger one, as a ring is easier to reduce than to enlarge.
The size can always be adjusted later, so it's not an irreversible decision. We've gathered practical tips in the guide how to choose the size. We also understand last-minute purchases and assist with urgent orders.
How much does an engagement ring cost?
At BELLER, engagement rings start from 3,750 PLN. The final price depends on the carat weight and quality of the stone, gold purity, and setting. The three-month salary rule is a marketing myth from the 1930s, not a rule. A sensible budget is one that doesn't burden you at the start of your life together. The price jumps sharply at round carat values, for example, just above 1 carat, so a slightly lighter stone can be significantly more advantageous with an almost identical appearance. We explain how much you realistically should spend in the article how much an engagement ring costs.
How to check the stone's certificate and origin?
A certificate is proof of quality: it describes the color, clarity, cut, and carat weight of the stone. For brilliant diamonds above 0.3 ct, look for a GIA certificate, which is independent of the seller and recognized worldwide. You can always ask for its number and check the stone yourself in the laboratory's database.
Transparent stone origin is a standard you have the right to expect, and at BELLER, we treat it as a given. We show you how to read stone parameters in the guide how to recognize a good diamond.
Personalization: engraving and custom design
A custom-made ring means we start with your idea, not a ready-made design. You'll choose the stone, gold color and purity, and setting details. Engraving inside the band, even a date or initials, is done free of charge. This is what most often turns jewelry into a personal keepsake. We can also recreate a family ring or use your gold to give it a new form on request.
How long does it take to create a custom ring?
Creating a custom ring usually takes 2-3 weeks. Therefore, it's best to place your order 3-6 weeks before the planned proposal date. If you have less time, please let us know, as we understand last-minute purchases and assist with urgent orders.
How to care for an engagement ring?
Gold and brilliant diamonds are durable, but daily wear leaves marks. Remove your ring for cleaning, exercising, and bathing, and clean the stone with a soft brush in lukewarm soapy water. It's a good idea to have the ring inspected once a year to check the stone's setting. More tips can be found in our jewelry service.
Where to buy an engagement ring?
Ideally, where you can see the stone live and speak with the person who will create it. At BELLER, you have both: you can examine a brilliant diamond up close and meet the jeweler who will craft your ring. Online purchase is also safe with us, as we provide the parameters and certificate for each stone. And if you prefer to see the ring live, we invite you for a relaxed meeting at our boutiques: in Warsaw at Mokotowska 71 and in Krakow at Szczepańska 9, Monday to Saturday from 11:00 AM to 7:00 PM.
You can also start by browsing our collection of engagement rings, for example, the Promise N°36 or Promise N°38 models, or learn about the stones themselves on the about brilliant diamonds page. Before you decide, also check out the 7 mistakes when choosing a ring.
Expert opinion
“The most valuable thing for me is discussing expectations and what is most important to the client, because then I feel what they truly care about. The size of the stone, the type of setting, the finish, sometimes an engraving—these are many possibilities that we calmly go through with trust and care. We always have time, because this is not a quick purchase, and every detail matters.”
Patrycja Procner, BELLER gemologist
Frequently Asked Questions
What brilliant diamonds are in BELLER engagement rings?
Only natural brilliant diamonds of D-E color and VVS1 clarity. Above 0.3 ct with GIA certificate, smaller ones with BELLER gemologist certificate.
How much does an engagement ring cost at BELLER?
Prices start from PLN 3,750 and depend on the stone, gold purity, and setting.
How long does it take to create a custom ring?
Usually 2-3 weeks. It's best to place your order 3-6 weeks before the planned date.
Where can I try on an engagement ring?
At BELLER boutiques: Warsaw, Mokotowska 71 and Krakow, Szczepańska 9, Monday-Saturday 11:00 AM - 7:00 PM.