Your 4th anniversary is traditionally celebrated with silk or linen and on the modern list with flowers. But if you want something with a bit more sparkle then you need to look at the gemstone anniversary list.
On this list your 4th anniversary is blue topaz and this truly is a beautiful stone to celebrate with, as it is the stone of true love and success in all you do. I think we will all have a bucket full then! ;o)
So Topaz is quite an amazing gemstone and for a gift it is beautiful. The natural blue of this stone is quite rare and the stones are often treated with heat to increase the color blue.
Another way to include this stone as part of your 4th anniversary gift is to use it as an excuse to travel and maybe even find your own gemstone. It is found in a number of places around the world in small quantities:
Afghanistan, Australia, Brazil, China, England, Japan, Madagascar, Mexico, Myanmar, Namibia, Nigeria, Northern Ireland, Pakistan, Russia, Scotland, Sri Lanka, Ukraine, United States and Zimbabwe.
Most of these places are fantastic, romantic vacation destinations, others are sadly still in the middle of war, hopefully one day they will all be great places to visit.