The Birthstone ring is a fine ring designed for you to keep your loved one close. It measures 4mm at the face of the ring and tapers out to 2mm. This style is offered in either recycled sterling silver or 9, 14, or 18ct recycled yellow gold. The intention of this ring is for personalization with a 2.5mm (approximately) birthstone from the options listed. This style can accommodate additional stones alongside the center stone. As it's a fine band, the largest stone will be 2.5mm, down to 1.5mm and 1mm, with a maximum of 4 stones as a bespoke combination. If you would like to discuss this option or explore alternative stone combinations, please send your inquiries via email to [email protected] to explore what's possible. To ensure you get the right fit for your ring - please visit our sizing guide for additional information or purchase our ring sizer. If you do not see your size listed, please measure from our size guide and add your size to the 'order special instructions' box at checkout and we will make as requested for you. Each piece is handcrafted to order, please allow up to 4 weeks for this item to be handmade in our studio. If you require a faster turnaround time - please get in touch via email at [email protected] prior to purchasing.