What karat gold is best?

Gold in all its karat is good, but depending of the need to use we classify Karat.

For Investment needs: 24 Karat is the best. There is no loss and Direct stock market price.

For Fashion & Designs: 21K or 18K depending on how much hard we need it, color and shine drop as karat is lower.

Lower karat grades are reserved for low price commercial use depending on markets need. 

24ct is the best one 999.9 pure gold

24 karat since it has no additives 

 i think best part is, if you use edible gold leaf, you can actually ... make sure to get goldthat is as pure as possible--this means 22-24 carats.

Gold is a soft and precious yellow metal. It is available in multiple karats, such as, 18 karat, 22 karat, 24 karat, etc. Gold can be put to different uses depending upon its purity. 18 karat gold comprises of 75 per cent of gold and 25 per cent of other metals, such as, copper, silver, etc., for more strength and durability. It is commonly used for crafting jewellery with greater toughness. 22 karat gold contains a karat number higher than 18 karat gold. It consists of 91.6 per cent of gold while the rest percentage is of other metals. It is also preferred for making jewellery due to its pliable nature. It is more durable than 24 karat gold. 24 karat gold is regarded as the purest form of gold with 99.95 percentage of gold. It resembles bright yellow and is flawlessly lustrous. 24 karat gold is more expensive and less dense than 18 karat gold or 22 karat gold. It is too soft for making jewellery. Jewellery made with 24 karat gold is very fragile, therefore, it is mostly used for casting gold coins and bars.