Whois & Analysis for vraiandoro.com

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.

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.

A wedding ring or wedding band is a finger ring that indicates that its wearer is married.

It is usually forged from metal, and traditionally is forged of gold or another precious metal.

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.

The fineness of a precious metal object (coin, bar, jewelry, etc) represents the weight of fine metal therein, in proportion to the total weight which includes alloyed base metals and any impurities.

Alloy metals are added to increase hardness and durability of coins and jewelry, alter colors, decrease the cost per weight, or avoid the cost of high-purity refinement.

For example, copper is added to the precious metal silver to make a more durable alloy for use in coins, housewares and jewelry.

Coin silver, which was used for making silver coins in the past, contains 90% silver and 10% copper, by mass.

Sterling silver contains 92.5% silver and 7.5%, by mass, of other metals, usually copper.