Alku Modern Jewelers opened in LaCenterra at Cinco Ranch at 23501 Cinco Ranch Blvd., Ste. J110, Katy, in early December, the store’s sales manager said. The business offers custom-designed and designer pieces, including Omega Watches. It hosts a jeweler in-store and uses 3-D technology to design rings and other pieces so customers can see the jewelry before it is crafted. It also hosts events with a third-party appraiser to help guests properly document and determine the market value of any type of jewelry. 281-394-2236. www.alkujewelers.com