WORLDWIDE FREE SHIPPING
WORLDWIDE FREE SHIPPING
Cart 0

https://rolandaalvesjewels.blogspot.com/

Peridot is August birthstone / O Peridoto é a pedra do mês de Agosto

Peridot is August birthstone / O Peridoto é a pedra do mês de Agosto

Peridot is an iron and magnesium neososilicate found in prisms, pinacoids and bipyramids; the best quality is from the United States, Brazil, Egypt, Ireland, Russia, Sri Lanka and the Canary Islands.It is also one of the few gems with only one colour - green - usually transparent, sometimes a little golden. As a magnesium and iron silicate, the intensity of its colour depends on the amount of iron in its composition.The peridot is also known as Olivine or Chrysolite, as its origin is the legendary volcanic island of Zebirget, in the Red Sea, from where the crusades spread it throughout...

Read more →


Can a ruby be as expensive as a diamond? / O rubi é mais caro que o diamante ?

Can a ruby be as expensive as a diamond? / O rubi é mais caro que o diamante ?

As it happens with diamonds, the value of a ruby ​​rises exponentially according to its weight. Interestingly, as the ruby ​​has a relative density higher than the diamond, a 1-carat ruby, for example, is smaller than a diamond with the same weight. As previously mention, Burmese rubies are among those of superior quality. Still, gems above 1 carat are increasingly rare, given the near extinction of those mines, so the price per carat of excellent quality gemstones increases significantly. consistently, breaking records at auctions and getting higher values compared to the other 3 top gems (diamond, emerald and sapphire)  ...

Read more →


The corundum family - A familia dos corindos

The corundum family  - A familia dos corindos

Ruby is a gem that belongs to the corundum group, just like sapphire, but only red corundums are rubies. All other colours, from colourless to pink to blue, are sapphires.Although there are no ruby ​​classification tables, as they exist for diamonds, certain characteristics such as colour, transparency, size and size help us to assess their quality.   O Rubi é uma gema que pertence ao grupo dos corindos, tal como a safira, mas apenas os corindos vermelhos são rubis. Todas as outras colorações, do incolor passando pelo rosa até ao azul são safiras.Apesar de não existirem tabelas de classificação de...

Read more →


Is it a Pink Saphire or a Ruby? Safira rosa ou Rubi ?

Is it a Pink Saphire or a Ruby?    Safira rosa ou Rubi ?

Colour is one of the most important characteristics to determine the value of a ruby. The ruby-red hue is due to Chromium (Cr), and the colour can range from deep red to brownish red if iron particles are associated with chromium.A ruby ​​of exceptional quality is bright red, slightly purplish, but never too dark. A good quality ruby, on the other hand, should be neither too dark nor too light, neither too purple nor too orange. If it is too dark, the stone loses its lustre, but if the stone has a light shade, it can be considered a pink...

Read more →


Ruby - one of the 4 magnificent gemstones / Rubi - uma das 4 pedras magnificas

Ruby - one of the 4 magnificent gemstones / Rubi - uma das 4 pedras magnificas

Ruby is one of the four magnificent gems, along with diamond, emerald and sapphire. The name derives from the Latin "rubeus", which means red.The first records of its ​​extraction date from the 1st century BC in Sri Lanka, however, excavations carried out near the mines of Myanmar (formerly Burma), suggest that the fascination with rubies predates language itself.As a gem very associated with protection, in India, it was believed that the ruby ​​could make them live in peace with the enemies, as well as, that the red tone resulted from a flame inside the gem and that it was even...

Read more →