Yes, this is a classic necklace design: a faceted pear or teardrop shaped pendant on a simple silver(ish) chain. This works year round but the ruby red color is especially appropriate right now, since the birthstone color for July is ruby red.
Of course this design works with your favorite color, too. I just wanted to show you the sample in ruby red! It will look great worn over a tee shirt, or with a cocktail dress for dinner. It’s known as classic for a reason – this works!