Ancient, traditional, and modern birthstone calendars have been developed by different cultures or organizations over the centuries. April is an important month to consider alternative birthstones, as the traditional birthstone for April is diamond, a notoriously costly gem. Diamond is usually durable enough to be placed in an ultrasonic cleaner.
Except diamond, there are 4 other gemstones which have been known as April birthstones in certain cultures because of their similarity to diamond. These stones are Sapphire, Opal, White Topaz, Quartz. They have clear shine and sparkle at a much lower moral and financial cost.