Diamonds have been in demand since historical times

Jewelry made from rare gemstones has always been in fashion for centuries where the shine and sheen of such stones can turn on the brain and reignite the primeval search for water as per the study by Belgium researchers. 

The brain as it gazes the gems tries to search for perfection and security, at the same time as these stones are inspirational fashion accessories showcased by celebrities at various film festivals, it can be reset and redesigned after many years to create a new piece of ornaments. 

In the 19th century, the financial centers in London and New York were excited about the discovery of diamonds in the mountains of Colorado. 

The country’s surveyors were amazed to see such a mountain and as they surveyed it they noticed that the stones were already cut. The mountain contained low-grade stones, which were cut by some professional gem cutters. 

Investment-grade Gemstones 

Some colored gemstones are considered safest, in terms of investment, like rubies which hold higher values and always get buyers, more than ever, if it is a rare one. 

Some of the finest unheated stones can gain an estimated value of over $1 million a carat at auctions. 

Such high-value stones are extracted from mines of Madagascar, Tanzania, and Mozambique and can quickly deliver higher returns in comparison to other colored gemstones. 

The top three include the emeralds which were initially thought to be large-sized green stones from Brazil and Colombia. Several investors trust the dealers to buy it but the investment can be made carefully in the ones that have not been treated to enhance clarity levels, as it can gain higher values at auctions almost more than $300,000 a carat. 

Investment grade diamonds include colored gemstones which were worn by celebrities and can be seen in high-profile engagement rings.  Red is also valued like yellows and pinks, while, a vivid yellow can gain around $100,000 a carat. 

Similarly, the white or blue sapphires having deeper tones and darker shades can get more value in comparison to other types of sapphires. These are a good investment and can gain in the range from $100,000 to $50,000 a carat. 

The new buyers are attracted to modern stones which can suit the personal style like the Tanzanitewhich gets several buyers in China and Asia, and it can be bought for $5000 a carat. 

Many of these stones are rarer than diamonds like the Paraiba tourmaline which can be found only in the remote mines of Brazil and its blue-green variety is priced double the price of pure blue ones. 

One can also get green colors in Paraiba Tourmaline. Similarly, Alexandriteis famous for the color-changing property and is one of the rarest where the resource of the gemstones has almost depleted. 

It can cost in the range of $100,000 a carat. Spinels are red like rubies or pink, or they can be colorless. These are considered a great investment where the price can go up to $50,000 a carat.