Starting at 7:45 in this video, Susan talks about the birthstones for November, topaz and citrine, and displays examples of each found in the store for birthday gift ideas. The most common color of topaz is blue topaz, but the birthstone is supposed to be the translucent natural yellow topaz. Since natural topaz is relatively rare, citrine is the alternative birthstone for November.
Earlier in the video, and again at the end, Susan talks about the questions most often asked by customers in the store.