YES
Yes, by weight, diamonds are more valuable than gold.
Diamond are much more valuable than gold even considering the recent price rise for gold.
There have been times when iron was more valuable than gold. Most bronze age civilizations valued iron more highly than gold, as it was both rarer (iron ore is common, naturally occurring pure iron is not) and more useful (iron is significantly stronger than bronze, and much, much stronger than gold).
are diamonds more valuable than emeralds
Gold cost more but it depends on how the diamond is cut and what size it is. But overall gold costs more.
platinum
Rhodium and platinum are both more valuable than gold.
GOLD.
Gold is more valuable because it is rarer than platinum. Gold can be found in many places, but platinum can only be found in one place - the Earth's crust.
Yes, there are several metals that are more valuable than gold, such as platinum, rhodium, and palladium. These metals are rarer and have unique properties that make them highly sought after for various industrial and technological applications.
Platinum.
Because gold is easier to find. On top of that there are more industrial uses for platinum than for gold.
White gold is an alloy of gold mixed with white metals like nickel, palladium, or silver, while platinum is a naturally white metal. Platinum is denser, more durable, and rarer than white gold, making it more valuable. White gold requires periodic rhodium plating to maintain its white appearance, whereas platinum does not need this maintenance.
White gold is the same thing as yellow gold just a different color, where as platinum is a more rare and precious metal making it far more valuable than gold.
Well, gold is $1,243 per oz this morning, and platinum is $992. HOWEVER, Rose gold is usually 75% gold, or $932/ oz. Platinum used in fine jewelry is 90% platinum, which is $892/ oz. Rose gold is currently (6 June 2016) the most valuable of the two.
Some elements that are more valuable than gold include platinum, rhodium, and palladium. These elements are considered more valuable due to their rarity, properties, and demand in industrial applications such as catalytic converters.
It would seem not to be the case in the main countries though in the times of the Romans sliver was more precious to them than gold.