The Only One

Starting from 650

18k gold and a brilliant cut diamond come together bringing to life our solitaire, The Only One, set in four prongs.

The model wears 0.30cts and 0.70cts rings.

  • 2.8g of 18k recycled solid gold
  • Lab grown diamonds
  • Cut: brilliant
  • Carats: 0.30cts
  • Colour: G-H
  • Clarity: SI1+
  • Handcrafted in Spain

Made upon request within 10 days

Select from the available carat options

Other diamond qualities available, contact us at for more information

Recycled gold

Made of 18k recycled solid gold. Our recycled gold comes from old pieces that are melted down to give them a new life. Solid gold does not oxidize or discolor, it can be worn every day!

Grams of gold are subject to the variation of the ring size.

More information 

Lab grown diamonds

All RÊVER jewelry is set with lab grown diamonds, created with green energy and free of social and environmental impact. At RÊVER we work with diamonds of G-H color and SI1+ clarity.

Other diamond qualities available, contact us at for more information.

More information


Don’t know what her ring size is? Check our size guide.


All our rings can be engraved, the size of the message is limited to the design of each piece and the available surface.

Write your message at the end of the purchase process. If you prefer to keep the free size change, engrave your ring when resized.


All RÊVER jewelry is produced under request in 10 calendar days. Orders are delivered in 1 or 2 business days with DHL Express service and free shipping to the Peninsula and the Balearic Islands (Spain). All shipments are insured during transit.

If you need to receive your order faster, please contact us at and we will do our best to accommodate.


Unfortunately, we can not accept returns or exchanges as this piece is handcrafted specially for you under request. We hope you order consciously and love all your RÊVER jewelry. 

If you want to change the size of your ring, we offer a free size change service during the 30 days from the date of reception. Remember that we will not be able to change the size of personalized rings with engraving. Please contact us at”> and follow the instructions.