O Diament Expert w mediach
O Diament Expert w mediach

Zweryfikowany dealer certyfikowanych diamentów w Polsce

Autoryzowana sprzedaż certyfikowanych diamentów jubilerskich i inwestycyjnych. Pełna weryfikacja KYC/AML oraz bezpieczne płatności obsługiwane przez Przelewy24, mBank, Paynow i Tpay.

Przelewy24 - bezpieczne płatności online mBank - weryfikacja sprzedawcy Paynow - szybkie płatności Tpay - operator płatności
GIA / IGI
certyfikacja
9C
analiza jakości
Gwarancja
najniższej ceny
Bezpieczne
płatności SSL
Ubezpieczona
przesyłka
Zwroty
do 30 dni
Zaprojektuj swój pierścionek z certyfikowanym diamentem →

Buying a Diamond Safely – Key Answers to Your Questions

faq

What is the process of buying a diamond like?

Purchasing from Diament Expert is simple and fully transparent:

  1. You select a diamond in our diamond search engine.
  2. You can check its certificate of authenticity even before purchase.
  3. You finalize the payment online.
  4. We send an insured package.
  5. After receipt, you have 30 days for a calm evaluation and potential return.

Can I return a diamond?

Yes. We offer a 30-day return policy in case of any discrepancy with the order (for unmounted diamonds).

Returns are quick, hassle-free and secure.

Is the diamond shipment insured and discreet?

Yes. Every shipment is:

  • fully insured,
  • shipped in discreet, unmarked packaging,

In case of loss or damage — the lab-grown diamond store bears all responsibility, not you.

Are payments secure?

Yes. All transactions are encrypted with an SSL certificate, and payments are processed via:

  • Przelewy24
  • Paynow
  • TPay,
  • BLIK,
  • fast bank transfers,
  • traditional bank transfer,
  • card payments

Your data is fully secure.

Are the diamonds genuine and certified?

Yes. All laboratory diamonds from our store have an international GIA, IGI or HRD certificate, which confirms their authenticity and 4C parameters.

You can download the PDF certificate from the Institutes' websites - links in the footer

How can I check a diamond's certificate and authenticity myself?

It's very simple:

  1. Go to the GIA / IGI / HRD "Report Check" page.
  2. Enter the certificate number.
  3. Compare the displayed document with the diamond description.
  4. The same number is laser inscribed on the diamond's girdle (visible under a jeweler's loupe).

Do you have real customer testimonials (social proof)?

Yes. Our reviews come from Google Reviews and are 100% authentic — they come exclusively from customers who have made a purchase.

We display the official Google widget below.

Can I consult an expert about the selection?

Of course.

We offer Diamond Concierge, which is individual consulting on diamond selection.

📞 502 097 897

kontakt@diamentexpert.pl

Does Diament Expert guarantee the lowest diamond price in Poland?

Yes. We offer a Lowest Price Guarantee.

If you find an identical diamond (same GIA/IGI/HRD certificate, same 4C parameters) at a lower price from another seller in Poland — we will not only match the difference, but also lower the price by an additional 2%.

Thanks to direct cooperation with global suppliers and the absence of brick-and-mortar showroom costs, we can offer prices that are even 30–50% lower than in traditional jewelry chains.

Who we are and why you can trust us?

Our company has undergone detailed financial, legal, and owner verification (KYC and AML procedures).

Diament Expert has been positively verified by four independent payment institutions in Poland.

Proof of complete verification is the availability of all secure payment methods at checkout – we offer the widest range of secure payments in the diamond market in Poland.

Diament Expert is a family business, where the expert is Marta Kłosowska – a diamond enthusiast, an expert in their selection, and a person who builds the brand on three foundations: honesty, transparency, and customer safety.

Marta personally supervises every stage of the purchasing process:

  • selection of stones from international suppliers,
  • verification of GIA/IGI/HRD certificates,
  • customer contact,
  • quality control and shipping security.

This is not an anonymous store or marketplace – behind every order are real people who treat every purchase as their own.

That is why, as a family business, we can afford an individual approach, full responsibility, and a standard of service that you will not find in large jewelry chains.

Our goal is simple:

to make buying a diamond safe, simple, and fully transparent, even if you are doing it for the first time in your life.

This way, you can be sure that:

  • every diamond has been selected and checked by an expert,
  • you receive a 100% certified, original stone,
  • your order is handled with the utmost care,
  • you always have someone to talk to – no call center, no automated system, just a real expert.

This is what distinguishes Diament Expert on the market.

Diamonds – an expert guide from Diament Expert, prepared by Marta Kłosowska, a diamond market expert

Find out more

What are diamonds?

Diamonds are the hardest natural minerals found on Earth. They are formed deep beneath the Earth's surface under immense pressure and temperature. Their extraordinary durability, brilliance, and rarity have made them a symbol of luxury, love, and permanence for centuries.

Diamonds are most commonly used in jewelry, especially in engagement rings, earrings, and necklaces offered by diamond wholesalers. Investment diamonds are also gaining popularity as a form of capital investment, and diamond trading in Poland is attracting increasing interest.

There are two main types of diamonds available on the market:

Natural diamonds – formed in nature millions of years ago.
Our lab-grown diamonds – created under controlled laboratory conditions, with identical chemical and optical properties to natural diamonds.

Every genuine diamond should have a gemological certificate confirming its authenticity and quality parameters.

How to choose a diamond?

Choosing the perfect diamond can seem difficult, but by following a few rules, you can easily find a stone at a diamond wholesaler that fits your budget and expectations.

The most important things to consider when choosing a diamond are:

diamond certificate (e.g., GIA or IGI)

4C quality parameters

carat weight

cut shape (round, oval, princess, etc.)

For most customers, the key is to find the best value for money at a diamond wholesaler. Often, a slight difference in parameters can significantly lower the price of a diamond, with a practically unnoticeable visual difference.

Therefore, more and more people are choosing to buy diamonds directly from diamond wholesalers or gemology specialists, instead of traditional jewelry stores.

Price of diamonds

The price of a diamond depends on many factors and can range from several hundred to even several hundred thousand zlotys, which is why diamond trading in Poland requires extensive knowledge. The biggest impact on the price comes from:

diamond weight (carats)

cut quality

color

clarity

For example, a 1-carat diamond can cost from approximately PLN 10,000 to over PLN 80,000, depending on its quality parameters.

It is worth remembering that diamond prices in jewelry stores are often much higher due to retail markups. By purchasing a diamond directly from specialists, you can find certified diamonds at much more attractive prices.

Diamond parameters – the 4C rule

The quality of diamonds is assessed according to the international 4C system, which includes four key characteristics:

Carat (weight)

Carat determines the weight of a diamond.
1 carat (1 ct) is 0.2 grams. The larger the diamond, the rarer and usually more expensive it is.

Cut

The cut determines how the diamond reflects light and how much it sparkles. The most popular is the brilliant cut (round brilliant), which provides maximum brilliance.

Color

Diamonds are graded on a scale from D (colorless) to Z (light yellow). Colorless diamonds are the most prized because they transmit the most light.

Clarity

Clarity describes the number and visibility of internal inclusions. The clarity scale includes:

FL – flawless

VVS – very very slightly included

VS – very slightly included

SI – slightly included

Most inclusions are invisible to the naked eye, so when choosing a diamond, it's worth considering the price-to-quality ratio.

Certified diamonds – guarantee of authenticity and quality

Diamonds occur as natural stones and as synthetic laboratory alternatives. Every diamond undergoes a gemological assessment, the significance of which lies in confirming its technical parameters. Key features include clarity, color, size, and mass expressed in ct, which affects its optical perception and market value.

Independent gemological certificates confirm authenticity, as well as age, density, and a crucial physical property. Analysis of structures, such as inclusion, helps determine the origin and geological processes occurring in the Earth's crust.

Buying diamonds – an investment that does not lose value

Buying diamonds is seen as a form of long-term capital protection. Investment diamonds are chosen due to limited supply, and natural diamonds result directly from processes shaped by nature. For many people, a diamond constitutes lasting wealth.

The global market influences demand, supply, and price, which is not constant, affecting diamond trading in Poland. In this context, a diamond is sometimes considered a desirable asset in long-term strategies.

Diamonds gemstones – natural beauty encapsulated in form

A diamond belongs to the group of gemstones and is distinguished by unique physical properties. Its natural character makes each specimen unique, and its beauty results from its interaction with light sources.

One of the key features remains hardness, measured on the Mohs scale, which translates into high resistance and minimal susceptibility to damage.

Diamond store – wide selection of stones for collectors and investors

Sales are conducted both in-store and online, where high-quality photos, videos, and 360° presentations are standard. The professional offering of a lab-grown diamond store includes comparison tools and full technical specifications.

A purchase made in a reputable store ensures a safe process, covered by a formal guarantee, and the client can consciously purchase the chosen diamond under controlled conditions.

Diamond price – what determines the value of a precious stone?

The price depends on individual parameters, including mass, structure, and whether the diamond is colorless. Market conditions and industrial applications, where the diamond is used for its durability, also play a role.

Beyond jewelry, diamonds have technical applications, which affects global demand and market stability.

Exclusive diamonds – choose your unique jewel

The diamond's character makes this stone hold a special place in the jewelry segment, where it often appears as a brilliant cut diamond. Internationally, it is also known as diamond and diamonds.

The right choice of diamond allows for combining aesthetic qualities with utility and investment value.

Expert knowledge

Beyond Earth, extraterrestrial diamonds have also been discovered, and lonsdaleite is formed at meteorite impact sites. Diamonds are being studied in quantum physics as potential information carriers. Their structure, properties, and history make the diamond one of the most analyzed minerals in the world.