Choose your stone size
Renderings are shown on ring size L½ and are for size comparison only.
Solitaire Round Blue Sapphire Platinum Ring
All of our rings are available in blue sapphire, ruby, emerald, pink sapphire, yellow sapphire, garnet and aquamarine. We offer three metals, 18K rose gold, 18K yellow gold and platinum. The centre stones are available in four cuts, round, cushion, oval and emerald cut and five sizes for each cut and style.
Planning a Christmas Proposal?
Design your perfect ring
Order by 25th November
Crafted in 4-6 weeks
Free returns, exchanges and resizing for 60 days*
Our custom rings are crafted in 4-6 weeks, with only a small selection ready-made in-stock.
Get in touch before the 25th of November to ensure you have your perfect design for Christmas.
*T&C's apply.
Luxury packaging, discreetly delivered
Our Reviews
Customer Stories
"Dominic proposed with the stunning Emerald Trilogy. The pair then tied the knot with the classic Diamond Chevron & Plain Thick wedding bands!"
Dominic & Natalie
"Engagement rings to make anyone say 'I do'"
"The best emerald cut engagement rings"
"One of the most refined and elegant gifts you could buy"
"Gemstone rings for the Instagram age - colourful, affordable and ethically sourced"
"As unique as the woman wearing it"
Need It Now?
Need It Now?
We have a curated selection of shimmering best sellers for you, ready to ship in as little as 24 hours. Each piece is made with love and responsibly sourced.
Shop The Treasure Box