As expected, the first places are occupied by ruby, sapphire and emerald. Deciding where to rank among these three points is difficult and also depends on your own preferences and the portfolio you already have.
1. Ruby
Rubies are the hardest mineral in the world after diamonds and are significantly rarer than diamonds. It is the red version of corundum, the most sought after are pigeon blood red rubies. As an investment they come in weights from 1 ct. in question, from 5 ct. When it comes to clear, red stones, you are dealing with absolute rarities. A price increase of 5-8% on average per year can be expected.
2. Sapphire
Sapphires come in many different colors, the best known being blue sapphires. Deep blue sapphires have the highest value in trade, most of which come from the Indian Kashmir region, or Sri Lanka. Another sought-after variety is the Padparadscha sapphire, which has the orange-pink coloring of lotuses, caused by traces of iron and chromium in the mineral. As with rubies, stones from 1 ct. interesting as an investment, although the current popularity of the respective color variety also has a strong impact on the price development.
3. Emerald
Emerald is the green variety of beryl. Of these, deep green, clear specimens are particularly sought after. A special cut was developed for emeralds: When viewed from above, the so-called emerald cut looks like a rectangle with beveled corners. Here too there are clear stones with a beautiful color saturation from a size of 1 ct. interesting as an investment.
