Julia Roberts sported BaubleBar's beloved Alidia Ring set on the red carpet a few years back, fans and fashion forecasters alike took notice — and eventually made the ring a best-seller for the luxury jewelry brand, in the process.Fortunately, the ring style is now not only back in stock at BaubleBar, but it's also marked down. BaubleBar's Friends & Family Sale is taking 25% off sitewide, including the luxury jewelry brand's best-selling Alidia Collection. Some of the newest stackable styles from the Alidia Collection such as the chic Mini Alidia Ring and Alice Ring styles are on sale for this week only.The Alidia Ring, in particular, features elegant, baguette stones which rest just beside one another in a chic eternity band style.