These eye-catching June birthstones are the bright gem known as rhodolite, or rose garnet. These have emerged as the modern June birthstone of choice, due to the fact that other gems historically used in June birthstone rings are not as strong or high-quality compared to others. Rhodolite jewelry made with rhodolite has much in common with an alexandrite (the old stone), but the greater strength and more consistent color of this gem make it the superior choice. The rose garnet is thought to promote love and friendship.