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General

What is Klarna?

Klarna is one of the leading payment providers in Europe and a licensed bank that is fundamentally changing the payment experience for buyers and sellers. The company, founded in Sweden in 2005, enables online shoppers to handle outstanding payments immediately, later or in installments quickly, easily and securely. Klarna works with more than 130,000 retailers such as Asos, Spotify, MediaMarkt and Deutsche Bahn and currently employs more than 2,500 people in 14 countries. In 2014 Klarna took over Sofort GmbH; In 2017, Billpay GmbH was acquired. The company's investors include; Sequoia Capital, Bestseller Group, Atomico, VISA and Permira. More information can be found atwww.klarna.ie

Is it safe to shop online with Klarna?

Definitely! Shopping online couldn't be more secure than with Klarna. In a store, you can always touch and check the goods you want to buy before paying for them. We believe that online shopping should be no different. That's why Klarna purchase on account gives you the opportunity to check your goods first and pay later.

Our goal is to make shopping easier and safer - smooth. That is why we take drastic measures to protect you as a buyer against fraud and unreliable online retailers. Whenever you see the Klarna logo in an online store, you can be sure that the store is trustworthy and meets our strict requirements.

Klarna is also certified by TÜV Saarland and Trusted Shops. Certificates give you as a consumer positive indications of the quality of the services and products. The associations registered under "the TÜV" are known worldwide and the certificates promote the highest international reputation. TÜV Saarland has concentrated on customer-oriented services outside the traditional official fields of activity. Every year, TÜV Saarland ensures that our business model is serious and that Klarna offers secure payment methods through a detailed investigation.

Klarna has been a “Trusted Shops Authorized Partner” since 2011 and as an “authorized partner”, Klarna's processes are perfectly adapted to the Trusted Shops quality criteria. The Trusted Shops quality criteria are based on national and European laws that are important for online shopping. They take into account the current judgments and requirements of consumer protection organizations or go even further. Read more about the Trusted Shops seal of approval here.

In addition, Klarna Buyer Protection protects you with every purchase from Klarna. This is an agreement between you and Klarna that allows you to shop online safely. To ensure that the Buyer Protection Directive applies, you as a consumer must make the purchase from an entrepreneur. Please note that the Buyer Protection Directive only applies to payments made with Sofort if it is expressly stated on the payment method selection page in the merchant's online store.

I have more questions about my payment. Can I speak to someone from Klarna?

Yes of course! You can chat with us in the app at any time or call us on 0221 669 501 10

When it comes to fine jewellery, every detail matters. As a customer, you often spend time carefully choosing the perfect gemstone, considering the colour, cut, clarity, and of course, the size. So when a stone arrives and doesn’t measure exactly what was listed — for example, a 6mm gem that measures 5.9mm — it’s natural to wonder “Is this the right size?”.

The truth is, in the world of natural gemstones, small size variations are completely standard — and often unavoidable. That’s because gemstones aren’t mass-produced, they’re shaped from natural materials, cut by hand and crafted to enhance their beauty rather than fit into an exact mould. So whether you’re browsing engagement rings, designing a bespoke piece, or simply curious — here’s everything you need to know about gemstone sizing.


What Is A Size Tolerance?

Diamonds held in a tweezer

In the jewellery industry, size tolerance refers to the small, industry-accepted range of variation in a gemstone’s size. The standard tolerance is ±0.2mm, meaning that a gemstone described as 6mm could actually measure anywhere from 5.8mm to 6.2mm — and still be considered accurately sized.

Why Don’t Gemstones Measure Exactly The Same?

Collection of different gemstones

There are a few key reasons — firstly, no two natural gemstones are identical. They’re formed deep within the earth over millions of years, and every stone carries unique properties — from colour and clarity to size and structure.
Additionally, unlike machine-made items, gemstones are cut by hand. Even with highly skilled cutters and precision tools, tiny variations are inevitable. It’s part of what makes your stone unique. It is also important to remember that gemstones of different shapes appear differently, even when they are the same size. For instance, a 6x4mm oval will not look the same as a 6mm round diamond, as the surface area is different.

What This Means For You

Diamond weight

If you’re buying or designing a piece with a specific stone size in mind, here’s what you need to know:

- Slight size variation is completely normal.

- A 6mm gemstone may actually measure anywhere between 5.8mm and 6.2mm.

- This does not affect the beauty, quality, or value of your stone.

- All our gemstones are cut and measured within industry-standard tolerances.

Our Commitment To Transparency

At Diamonds Factory, we believe in complete transparency. Our goal is to help you feel confident and informed at every step of your jewellery journey — and to love your piece not just when it arrives, but for years to come. We understand that buying fine jewellery is a personal experience, so we're here to help guide you through it. If you have questions about gemstone sizing, carat weights, or how your particular stone will appear in a design, our team is always happy to assist.

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