Custom Made Jewelry Handcrafted –Engagement Rings

Sapphire is one of the four most precious gemstones (which are diamond, ruby, emerald, and ... sapphire) and certainly the best known with diamond. Blue sapphire is by far the colored gemstone the most used in jewelry.

For most people, sapphire means blue sapphire as this is the most famous type of sapphire stone. In fact, there are many varieties of sapphire gemstone that can be of any color, from white (or colorless) to green.

Sapphire is actually a variety of corundum with traces of other chemical elements that give it its color. It is characterized by a hardness of 9 on the Mohs scale, just after moissanite which has a hardness of 9.5, and below diamond which has a hardness of 10.

Tanzanite stone is not a precious stone, within the meaning of French law, which only considers diamonds, sapphires, rubies and emeralds as such.

However, the price of Tanzanite stone makes it a gemstone in its own right :

• it is rare in geological sense (1000 times rarer than diamond)
• it has exceptional blue / violet colors
• it is in great demand in jewelry
• we are already talking about the closing date of the only production mine

To better understand the fascinating history of this stone, we invite you to dive into the origins of its discovery.

If you are looking for the best idea to propose to your girlfriend to marry you or get engaged, this is your definitive list.

We have gathered the most complete list of 135 great proposal ideas.

Whatever your skills or the personality of your loved one, you will find here the perfect way to ask her: Will you marry me?

The proposal idea I prefer is number 17 and the craziest might be number 122 while number 124 was a buzz worldwide.

Check this out! 

1. Best proposal ideas at Home
2. Unique ways to propose to your loved one
3. Beach proposal ideas
4. Romantic proposal
5. Outdoor proposal ideas
6. Simple and private proposal ideas
7. Cute proposal ideas
8. Winter proposal ideas
9. Fall proposal ideas
10. Party proposal with family and friends
11. Funny proposal
12. Public proposal ideas
13. Flower proposal
14. Amazing proposal ideas that are way different
15. Hotel proposal
16. Holiday or Vacation proposal
17. Restaurant proposal

Intriguing and mysterious, opal stone fascinates, on the one hand because of the multitude of colors and splinters it may have, but also because it remains a stone difficult to pin down by scientists and gemologists .

It is surely one of the few gemstones still being studied and the subject of theses to understand the chemical and granular composition, explain its lights and its mechanism of formation.

For the last 5 years, African jewelry is in fashion.

Driven by the appeal of ethnic art, new creations are emerging from patterns and colors of the black continent.

In this case, it is not a novelty since this design of African V-shaped ring is already well known, it is a classic.

By cons we will show you how is made this ring by hand.

This African wedding ring is composed of two welded V connected by their ends.

Numerical modeling allows us to better understand the design of this ring seen from several angles.

Black diamond is also called Carbonado.

Black diamonds are much older than white diamonds or colored diamonds on earth, but their discovery is recent since it dates from the mid-nineteenth century (find out more) and the interest of the public and jewelers is even more.

First black diamonds were used in jewelry in the twentieth century only and it's only very recently that they have really started to gain value in the gemstone market.

If the process of diamond formation is well known and understood by scientists and gemologists, the origin of black diamonds is still surrounded by mysteries.

Indeed, white and colored diamonds (there are blue, yellow, green and pink diamonds ...) are formed in the bowels of the earth under conditions of very high temperature and pressure, between 150 and 250 kilometers of depth in the Earth's mantle.

Therefore, only volcanic eruptions are likely to "bring us" these diamonds to the surface. This is why diamonds are always associated with kimberlite, a volcanic rock.

Rough black diamonds are found outside volcanic rocks, and black diamond mines are scattered on Earth, so the most recent scientific theories place the formation of black diamonds in space.

They would have arrived on Earth brought by meteorites during the formation of it it is more than 2 billion years. Read this article to learn more about the subject.

The two main sources of black diamonds in the world today are Brazil and the Central African Republic, formerly stuck together when only one continent, the pangea, emerged from the waters 200 million years ago. (Jurassic era).