I love this case for my Diamond Art projects!! With enough containers for gemstones, I have enough for duplicate colors and multiple projects. I love that it comes with trays, placers, and a corrector, along with tweezers and a funnel. There are also labels to label the containers with the DMC number. I label the lid and the container, so I know that the correct lid goes on the correct container when I have multiple containers out. I even glue a gemstone on the lid so I know the color without pulling the entire container out of the case.
With 420 jars, there should be enough for almost all colors of gemstones. Case is very well made, and has 2 compartments for jars of gems...top layer and the bottom, which is actually 2 layers of jars with foam layer in between. Foam holds jars because they are cut out for each jar, no falling, shifting or slipping out of place. Very nice case, and so worth having!