Whois & Analysis for allurez.com

A gemstone (also called a gem, fine gem, jewel, precious stone or semi-precious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments.

However, certain rocks (such as lapis lazuli) or organic materials that are not minerals (such as amber, jet, and pearl) are also used for jewelry and are therefore often considered to be gemstones as well.

Most gemstones are hard, but some soft minerals are used in jewelry because of their luster or other physical properties that have aesthetic value.

Rarity is another characteristic that lends value to a gemstone.

Apart from jewelry, from earliest antiquity engraved gems and hardstone carvings, such as cups, were major luxury art forms.

A gem maker is called a lapidary or gemcutter; a diamond worker is a diamantaire.

Sapphire is a gemstone, a variety of the mineral corundum, an aluminium oxide.

It is typically blue in color, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors.

The only color which sapphire cannot be is red - as red colored corundum is called ruby, another corundum variety.

This variety in color is due to trace amounts of elements such as iron, titanium, chromium, copper, or magnesium.

Jewellery or jewelry consists of small decorative items worn for personal adornment, such as brooches, rings, necklaces, earrings, and bracelets.

Jewellery may be attached to the body or the clothes, and the term is restricted to durable ornaments, excluding flowers for example.

For many centuries metal, often combined with gemstones, has been the normal material for jewellery, but other materials such as shells and other plant materials may be used.

It is one of the oldest type of archaeological artefact – with 100,000-year-old beads made from Nassarius shells thought to be the oldest known jewellery.

The basic forms of jewellery vary between cultures but are often extremely long-lived; in European cultures the most common forms of jewellery listed above have persisted since ancient times, while other forms such as adornments for the nose or ankle, important in other cultures, are much less common.

Historically, the most widespread influence on jewellery in terms of design and style have come from Asia.

Diamond (or) is a metastable allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice.

Diamond is less stable than graphite, but the conversion rate from diamond to graphite is negligible at standard conditions.

Diamond is renowned as a material with superlative physical qualities, most of which originate from the strong covalent bonding between its atoms.

In particular, diamond has the highest hardness and thermal conductivity of any bulk material.

Those properties determine the major industrial application of diamond in cutting and polishing tools and the scientific applications in diamond knives and diamond anvil cells.

An engagement ring is a ring indicating that the person wearing it is engaged to be married, especially in Western cultures.

In Western countries, engagement rings are worn mostly by women, and rings can feature diamonds or other gemstones.

In some other cultures men and women wear matching rings.

In some cultures, engagement rings are also used as wedding rings.