This scene is very revealing because we can see the bracelet that Jacob gave Bella plus the bite mark left by James and finally the ring, too.
Remember that this ring is very special because it belonged to Elizabeth Masen, the biological mother of Edward, so it has a lot of sentimental value.
The ring is gorgeous, with tons of diamonds. It shows the true love that Edward has for Bella, and that he wants to spend eternity with her.
Of course, the ring scene in the book and movie is one of the most romantic and emotional of the Twilight series.
Isabella "Bella" Marie Swan (later Isabella Marie Cullen) is a clumsy, accident-prone teenage girl who moves from Phoenix, Arizona, to Forks, Washington, to live with her father, Charlie. Though many boys are attracted to her when she arrives, she falls in love with Edward Cullen, a mysterious boy she discovers to be a vampire. In an attempt to protect Bella from his lifestyle, Edward leaves her. Bella falls into a depression and is comforted by her friend, Jacob Black. She comes to love Jacob as well, though not as deeply as she loves Edward. She eventually marries Edward and, after a complicated pregnancy, gives birth to their daughter, Renesmee, and becomes a vampire at age 18. After Bella's transformation, she has the ability to shield her and others' minds from mental attacks.