Artificial?
Diamonds were not invented; beautiful diamonds are natural gems. But from many years artificial diamonds are produced for industrial goals.
No, it is not bad luck to have other gems (or just a wedding band) instead of diamonds. It depends on the individuals taste and some women prefer other gems to diamonds. It is not always true 'that diamonds are a girl's best friend.'
A more recent substitute for diamonds is moissanite. This is a silicon carbide crystal which, although rare naturally, is relatively easy to synthesize. It used in both gems and industrial applications.
It is mainly gold, diamonds and other precious gems
It is mainly gold, diamonds and other precious gems
Jewelery can contain real diamonds, and jewelery can contain other gems, including stones meant to look like diamonds.
Insofar as gems are concerned, there are several semi-precious and outright fake objects that can be 'alternatives' to a diamond. Quartz, white sapphire, zircon, moissanite, and glass. Insofar as industrial use for diamonds -- about 80% of all diamonds mined are industrial diamonds, there are no natural substitutes. However, there are man-made, lab-created alternatives: man-made diamonds.
About 20% of all diamonds mined are gem-stone quality -- solid diamonds in your query. These diamonds can be cut and polished and sold as expensive gems. The 80% remaining are industrial diamonds, which can be purchased by the bag full for about the price of a latte. These are the crushed diamonds in your query.
the gems he found out about are rubies and diamonds
rubies are the most valuable, but the shape and certain sizes can change the costs or the different gems if you got 1 kilo of each gem then diamonds are worth the most
Diamond is the hardest natural mineral rated as 10 on the Mohs Scale of hardness. Eighty percent of all diamonds mined are industrial diamonds, used to sharpen, harden and make tools more precise and durable. Industrial diamonds are not gem-quality; they are cloudy, mal-formed groups of crystals and lack qualities desired for gems.