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The Banks Marquise Cultured Diamond Platinum Ring

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Available in your choice of diamond cut:
  • Round

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  • Oval

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  • Marquise

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  • Pear

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  • Cushion

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  • Princess

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  • Radiant

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Like a pop of champagne beneath a firework sky, grand gestures of love are immortalised in The Banks Marquise Cultured Diamond Platinum Ring. Seven opulent Cultured diamonds in a row for a startling burst of sparkle.

The Banks Marquise Cultured Diamond Platinum Ring is for the determined and aspiring, the passionate revellers of extravagance.

About cultured diamonds

Cultured diamonds are genuine diamonds, they simply form in a lab environment, not the Earth. Our bespoke cultured diamonds are indistinguishable from their natural counterparts and are only available in Excellent grades.

The bespoke process

Your dream ring is at your fingertips. Simply choose your setting, gemstone, precious metal and ring size, then we will bring your design to life within 6-8 weeks. Need it sooner? Get in touch.

Ring sizing

You're welcome to select your preferred ring size prior to checking out online.

We offer free ring resizing within six months from the date that your purchase is finalised to ensure your preferred fit.

Unsure of their ring size? We recommend selecting a size N upon checkout and contacting us post-proposal so we can assist you with a free resize.

Shipping and returns

Receive complimentary express shipping with your bespoke ring purchase.

For our full shipping details, please read here.

We are unable to offer any refund or store credit for a change of mind on made to order purchases, including bespoke rings.

For more details, please read our full returns policy here.

Why cultured diamonds?

Our Excellent quality cultured diamonds give you the possibility to get more for less. While physically and chemically identical to their natural counterparts, cultured diamonds are produced in a much more time and cost-effective way, making them an afforable diamond option while also eliminating the need for diamond mining.

How to get started


When choosing a bespoke ring featuring a cultured diamond of 1ct or less, simply add to cart and check out online. Upon check out, you'll be able to choose from a variety of payment methods to pay for your ring in full. You can even split your transaction across multiple payment types, or share part of the cost with someone else. For rings with a price upon request, simply get in touch with our team to proceed over email.

In store

Book a consultation to view our bespoke samples in person and discuss gemstone options. Finalise your design choice with the help of our team, then simply pay a deposit and we'll begin creating your dream ring.

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  • The bespoke process

    Know what to expect when creating a bespoke ring with Molten Store, whether in-store or online.

    See the bespoke process 
  • An introduction to diamonds

    Want to choose a diamond for your bespoke engagement ring but unsure where to start? Learn the basics with our useful guide.

    Discover our diamonds 
  • A guide to diamond cuts

    Discover the possibilities for your bespoke ring by getting to know our available diamond cuts.

    Explore our shape options