This is a tight 6.5 or a loose 6.25 - the bottom of the ring touches the top of the mark for 6.5. This is a minimalist style, while also bold and modern ring that can be worn stacked or alone. Only the Ruby ring is included the other bands are not for sale - just shown as an example of how it fits next to other bands. I think the ring looks very similar to the Cartier Ellipse Ring except this Ruby is round rather than oval. The ruby measures 4.22mm - between .25-.30 carat diamond equivalent. The ring weighs a hefty 4.21g crafted in 18k yellow gold - it feels very solid and smooth. The ruby is set below the tension mount well protected from knocks. The ruby is confirmed as natural and untreated by my jeweler. The ruby is undamaged - there are no chips to the stone. Great pre-owned condition. I will ship for free within the US tracked and signature required. I can be reached directly at vanessa@heritagejewelry