Product Details Ring Style: The "North Star" is an oval moss agate women's engagement ring with a diamond halo and accents. Many other center stone options are available upon request. To swap out moss agate for a different stone, please contact us! Center Stone: 6x8mm Oval Moss Agate Materials: 14K gold engagement ring featuring a moss agate center stone and 1/2 CTW diamond accents Customizable: Basic customizations can be accommodated by simply adding a request in the “Custom Requests” section