Engagement Rings

Finding the perfect engagement ring can feel overwhelming—how do you choose one that truly reflects your love story? With so many designs and quality options, making the right choice is not always easy. At Royal Coster Diamonds, we offer expert guidance to help you navigate every detail, ensuring your ring is as special and personal as the moment it symbolizes.

Why choose engagement rings from Royal Coster Diamonds?

At Royal Coster Diamonds, we understand the significance of this moment and are dedicated to helping you find the perfect engagement ring—one that symbolizes your love. Our diamonds are polished in-house at our own factory, ensuring the highest quality and brilliance. With centuries of experience, our skilled artisans refine each stone to perfection.

Choose your ideal ring setting and pair it with the diamond that speaks to you. Whether you prefer a classic solitaire or a more intricate design, we offer complete customization to match your vision. With a large stock of engagement rings and loose diamonds, you will have plenty of options to find the perfect fit for your style and budget.

Our engagement rings are crafted in 18K white, yellow, or rose gold, ensuring both beauty and durability for a lifetime.

At Royal Coster Diamonds, we do not just sell rings—we help you create a lasting symbol of love. Visit us to find the perfect engagement ring and begin your forever.

Why do we only craft with 18K gold?

We exclusively use 18K gold for our engagement rings, ensuring both durability and luxury. While 24K gold is the purest form of gold, it is also the softest, making it less suitable for fine jewelry. To enhance its strength and wearability, gold is alloyed with other metals such as silver, copper, and palladium.

- White gold is alloyed with palladium for a sleek, modern appearance.

- Rose gold is blended with copper and silver, giving it a warm, romantic hue.

- Yellow gold is mixed with copper and silver to maintain its rich, classic color.

By choosing 18K gold engagement rings, we ensure that each piece exudes elegance while standing the test of time.

How to choose the perfect diamond for your engagement ring?

We carefully select only the finest diamonds, evaluated based on the 4C’s:

- Carat refers to the weight of the diamond. A 1-carat diamond weighs 0.200 grams.

- Color is a key factor in a diamond’s value. The grading system starts with colorless (D-F) and ends with yellowish (X-Z). The less color a diamond has, the more valuable it is—though rare-colored diamonds like blue or pink are highly sought after.

- Clarity measures internal imperfections (inclusions). The highest grade, Flawless (FL), has no visible inclusions under 10x magnification, while the lowest grade, Piqué 3 (P3), has visible inclusions.

- Cut determines how well a diamond reflects light. The brilliant cut is the most popular, featuring 57 precisely angled facets for maximum sparkle.

At Royal Coster Diamonds, we also offer our exclusive Royal 201 Cut. With 201 meticulously polished facets, it creates exceptional brilliance, surpassing a traditional round cut.

All our diamonds are certified by leading grading agencies, ensuring authenticity and value.

Create your own bespoke engagement ring in just 15-30 minutes

At Royal Coster Diamonds, we offer the opportunity to create a custom engagement ring tailored to your preferences-in as little as 15 to 30 minutes. Select your preferred gold color and handpick the perfect diamond to bring your vision to life.

If you prefer a ready-made design, you can explore our engagement ring collection and personalize it with a custom engraving.

Determining the correct ring size is easy-you can bring in an existing ring or use our ring size finder to measure at home.

Warranty, free resizing & complimentary engraving

At Royal Coster Diamonds, we want you to feel completely confident in your engagement ring purchase. That is why we offer a 14-day return policy on non-engraved rings. If your ring does not meet expectations, you can return it within 14 days for a full refund or exchange.

Additionally, if the size is not right, we provide one complimentary resizing, ensuring the perfect fit. Our expert goldsmiths will carefully adjust your ring while maintaining its original beauty and craftsmanship.

Once you know your partner loves the ring, we offer free engraving to make it even more personal. Whether you choose a meaningful date, initials, or a short message, our skilled artisans will engrave your engagement ring at no extra cost.

Please note that rings with custom engravings or bespoke designs cannot be returned, but we will still ensure a proper fit with our free resizing service.