![Promise Marquise Ring](http://thepromiseringco.com/cdn/shop/files/marquise.png?v=1725616318&width=2060)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/AperolMarquiseGold_c97f2f54-bd58-4228-986e-4c98d7e5accb.png?v=1725616326&width=2060)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/AperolMarquiseSilver.png?v=1725616326&width=2060)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/700FADB6-39FA-443F-BDCA-F63D43063C93.jpg?v=1725616326&width=1080)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/85CCF879-676E-4FDA-BBF3-3896761EC220.jpg?v=1725616326&width=1080)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/4EF51276-5CF7-4B6F-B95C-1FA358ED144F.jpg?v=1725616326&width=1080)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/5F507E66-95BA-4609-8112-498743BD02E2.jpg?v=1725616326&width=1080)
![Promise Marquise Ring](http://thepromiseringco.com/cdn/shop/files/11_efe83248-dd6c-4aab-8e44-e8b0a3e68cd1.png?v=1725616326&width=2160)
![Promise Marquise Ring](http://thepromiseringco.com/cdn/shop/files/12_30d24d5d-3f42-4179-95d5-e3796e03dac2.png?v=1725616326&width=2160)
Promise Marquise Ring
Hand set diamond simulants
Anti Tarnish E-Coating
2-Year Warranty
Jewellery made with 25x thicker gold
Choose options
![Promise Marquise Ring](http://thepromiseringco.com/cdn/shop/files/marquise.png?v=1725616318&width=2060)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/AperolMarquiseGold_c97f2f54-bd58-4228-986e-4c98d7e5accb.png?v=1725616326&width=2060)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/AperolMarquiseSilver.png?v=1725616326&width=2060)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/700FADB6-39FA-443F-BDCA-F63D43063C93.jpg?v=1725616326&width=1080)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/85CCF879-676E-4FDA-BBF3-3896761EC220.jpg?v=1725616326&width=1080)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/4EF51276-5CF7-4B6F-B95C-1FA358ED144F.jpg?v=1725616326&width=1080)
![The Promise Ring Co. Oval Marquise diamond simulant ring. A unique but timeless stone cut, which captures light like no other. Shop in 18ct Gold or Sterling Silver.](http://thepromiseringco.com/cdn/shop/files/5F507E66-95BA-4609-8112-498743BD02E2.jpg?v=1725616326&width=1080)
![Promise Marquise Ring](http://thepromiseringco.com/cdn/shop/files/11_efe83248-dd6c-4aab-8e44-e8b0a3e68cd1.png?v=1725616326&width=2160)
![Promise Marquise Ring](http://thepromiseringco.com/cdn/shop/files/12_30d24d5d-3f42-4179-95d5-e3796e03dac2.png?v=1725616326&width=2160)
![](http://thepromiseringco.com/cdn/shop/files/blackwhitemarquise_8bc1c325-bc82-46af-b79f-15253b4b9c72.png?v=1718109811&width=2060)
quality promise
what makes us different
We didn't just want to create a standard jewellery brand; we wanted to craft something extraordinary.
Our commitment to excellence begins with using 18ct gold vermeil for our pieces, which is 25 times thicker than typical gold plating. We enhance our silver with a luxurious rhodium plating, one of the rarest and most valuable metals, and add an anti-tarnish e-coating for extra protection and water resistance.
Each of our diamond simulants is meticulously hand-set, reflecting our dedication to craftsmanship.
We use ECO Packaging which is FSC® certified... and if all this wasn't enough, we offer a 2 Year Warranty for peace of mind.