1.89ct Platinum Marquise Diamond Ring

Introducing our Platinum Marquise Diamond Ring, featuring a 1.64ct marquise cut lab grown diamond, finished with a diamond set band. This elegant and bold design is perfect for someone who likes their jewellery to be individual and a little different from the norm. The total diamond weight is 1.89ct.

Lab grown diamonds are grown from a natural diamond seed. Visually and molecularly the same as mined diamonds, a lab grown diamond ring is a gorgeous alternative to a traditional mined diamond. Sharing the same beauty and durability, they rank at the top of the Mohs scale for gemstone hardness.

€2,950.00

Availability: In Stock

SKU#: R557

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Description

Metal: Platinum.
Gemstone: Lab grown diamond.
Total diamond weight: 1.89ct.

Delivery & Returns

Delivery: Worldwide shipping and €5 delivery in Ireland on all orders. See more here.
Returns/Exchanges: 28 days. See more here.
Packaging: Our signature Ryan Thomas boxes and complimentary gift wrapping.

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Frequently Asked Questions

How do you clean a diamond ring?

To clean a diamond ring at home, soak it in a solution of warm water and mild hand soap . Use a soft toothbrush to gently remove any residue, especially around the setting, then rinse with clean water and dry with a lint-free cloth. For a professional finish, we recommend bringing your ring to Ryan Thomas Jewellers for expert cleaning and inspection.

How are diamonds created?

Natural diamonds form deep within the Earth’s mantle under extreme heat and pressure over billions of years. They are brought to the surface through volcanic activity. Each diamond is a rare and unique result of natural geological processes, which is part of what makes them so valuable and treasured.

What are lab-grown diamonds?

Lab-grown diamonds are real diamonds created in a controlled laboratory environment using advanced technology that replicates the natural diamond-growing process. They are chemically, physically, and visually identical to mined diamonds—but typically more affordable and often preferred by those seeking a sustainable alternative. At Ryan Thomas Jewellers, we offer both natural and lab-grown diamonds, helping you choose the right option for your values and budget.

How much does a diamond ring cost?

The cost of a diamond ring varies depending on factors like carat weight, cut quality, clarity, colour, and setting style. At Ryan Thomas Jewellers, our diamond rings start at accessible price points and range into high-end, bespoke creations. Whatever your budget, we’ll help you find a ring that offers beauty, brilliance, and lasting value.

Why are diamond rings expensive?

Diamond rings can be costly due to the rarity of high-quality diamonds, the precision required in cutting and setting them, and the craftsmanship involved in creating each piece. Additionally, diamonds are graded on strict international standards, and higher grades command premium prices. At Ryan Thomas Jewellers, we pride ourselves on offering transparent pricing and exceptional quality—ensuring you get true value at every level.