Buying an Engagement Ring: The Ultimate Guide for 2026

The engagement ring is the most significant piece of jewelry you will ever buy – it stands for love, promises, and the beginning of a shared life journey. It's no wonder that many people feel unsure when buying one: Which stone? Which metal? Which shape? How much should I spend? This comprehensive guide answers all your questions and helps you find the perfect engagement ring.

What makes an engagement ring special?

An engagement ring is more than jewelry – it is a symbol. Traditionally, it is presented during a marriage proposal and worn on the left ring finger. In Germany, the engagement ring is worn on the left, and after the wedding, the wedding ring is worn on the right. Many couples wear both rings together on the right ring finger.

The 4 Cs: How to evaluate diamonds

If you're buying an engagement ring with diamonds, you should be familiar with the so-called 4 Cs:

• Cut: The cut determines how light is refracted within the stone and thus its brilliance. An excellent cut makes the biggest difference in the diamond's beauty.
• Color: Diamonds are graded by their lack of color – from D (completely colorless) to Z (yellowish). For engagement rings, classes D to H are recommended.
• Clarity: Describes internal and external inclusions. Grades FL (flawless) to VS2 are flawless to the naked eye.
• Carat: One carat equals 0.2 grams. Larger diamonds are not necessarily more beautiful – cut and setting play an equally important role.

Popular stone shapes for engagement rings

Round Brilliant

The classic round brilliant cut is by far the most popular shape for engagement rings. It has 58 facets that maximize light reflection and create the characteristic sparkle.

Princess Cut

Square with pointed corners, modern and geometric. The Princess Cut looks elegant and sharp – perfect for women who love clean lines.

Oval Cut

The oval cut appears longer and slimmer on the finger than a brilliant of the same size. One of the trendiest engagement ring cuts in 2026.

Pear / Teardrop

The combination of oval and marquise results in a teardrop shape, which looks elegant and expressive. Particularly popular in France and among fashion-forward couples.

Emerald Cut

Rectangular with clipped corners and wide, flat facets – the Emerald Cut has a vintage and very elegant look. It emphasizes the quality of the stone, as inclusions are more visible due to the open facet structure.

Which metal for the engagement ring?

• White Gold (585/750): The modern, clean choice. Looks like platinum but is more affordable. Often rhodium-plated for extra shine.
• Yellow Gold (585/750): Classic, warm, timeless. Experiencing a strong revival in 2026, especially for vintage and boho-inspired rings.
• Rose Gold: Romantic and feminine. Particularly popular with Millennials and Gen Z.
• Platinum: The most noble and durable metal, hypoallergenic and very dense. More expensive than gold, but extremely resilient.

How much should an engagement ring cost?

The old "two-month salary" rule is outdated. The budget for an engagement ring should be based on your means, not an arbitrary rule. Good engagement rings are available from 300 Euros – the decisive factor is that the ring suits the person and the relationship, not its price.

As a rough guide:

• €300–€800: Simple bands, small cubic zirconia or gemstone stones
• €800–€2,000: Quality gold with a genuine diamond (0.2–0.5 ct)
• €2,000–€5,000: High-quality diamonds (0.5–1 ct) with an elegant setting
• €5,000+: Exceptional stones and craftsmanship

Finding out the ring size for the proposal

Having the right ring on hand when you propose is especially romantic. Here's how to find out the size without giving away your plans:

• Secretly borrow a ring she already wears and have it measured by a jeweler.
• Discreetly ask friends or family members for help.
• Buy an adjustable ring or a ring in standard size 54 (most common women's size) and have it adjusted after the proposal.

Engagement ring vs. wedding ring – what's the difference?

The engagement ring is presented during the proposal and usually features a stone. The wedding ring (wedding band) is exchanged at the wedding and is traditionally a simple band without a stone. Many women wear both rings together – in Germany, usually both on the right ring finger.

Alternatives to the classic diamond engagement ring

More and more couples are opting for alternatives to the classic diamond:

• Moissanite: Synthetically produced, more brilliant than a diamond, environmentally friendly, and more affordable.
• Sapphire: Princess Diana's famous engagement ring made sapphire an iconic alternative.
• Emerald, Ruby, Aquamarine: Colored gemstones for bold, individual couples.
• Lab-grown diamonds: Chemically identical to natural diamonds, but up to 70% cheaper and sustainable.

Find your dream ring at Corelune Jewellery

At Corelune Jewellery, you'll find beautiful rings for every special occasion – from delicate solitaire rings to striking gemstone settings. Browse our ring collection and get inspired for the most important purchase!