James Porter has specialised in jewellery for over 160 years and we pride ourselves on our wide range of diamond eternity rings. Each ring is personally selected by our buyer, and we are constantly updating our stock to include the latest fashions, as well as more traditional and timeless designs. Our range of diamond eternity rings below include unusual and unique designs in white, yellow and rose gold as well as platinum. Most of our styles can be made half or full set.