Is your crystal broken? Did the stem break off?
The following product is a crystal adhesive glue and will fix and repair your repair broken crystal of glass. The way it works is with Ultra Violet light. No, you don’t need a UV lamp. It will cure with direct sunlight and creates a permanent bond without yellowing. I have worked with this product for many years and it works really well to bond all your crystal and glassware. Highly Recommended. Clink on the picture to order.