Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to choose a blue gemstone [title] Look at your gemstones in overhead lighting. [step] Overhead lighting allows for the best viewing, and it will help you see the surface characteristics of the gem. A neutral-colored background will allow you to differentiate between the different shades and intensities of blue.

Ending1: [substeps] For example, you might examine a blue gemstone in a brighter room, or a silver gemstone in a darker room. [title] Select a gemstone that uses high intensity lights. Ending2: If you are concerned about being too tall, overhead lighting should work fine for you. You don't want your gemstone to be too far from the eye of anyone else--you need to look at the gem from a lower position. Ending3: [title] Choose shades that complement your skin tone. [step] While you should always wear a shade that compliments your complexion, your partner can also use blues, greens, yellows, and other colors depending on your preference. Ending4: By minimizing the visual " noise, " you can focus on the gemstone. [substeps] Despite popular belief, natural light is not always the best light to examine gemstones.

Answer format: ending1/ending2/ending3/ending4