Skip to main content

Diamond characteristics

Hardest material: Diamond is the hardest known natural material on the Mohs scale. Also on the Vickers scale. Diamond's great hardness relative to other materials has been known since antiquity. Diamond hardness depends on its purity, crystalline perfection and orientation: hardness is higher for flawless, pure crystals oriented to the direction. If the diamond is of low impurity then the diamond hardness is reduced but it is very low. We have wide variety of impurities in diamonds which we will discuss in our further topic CLARITY. Therefore it might be possible to scratch some diamonds with other materials, the hardest diamonds can only be scratched by other diamonds and nanocrystalline diamond aggregates. The hardness of diamond contributes to its suitability as a gemstone. If the diamond have low hardness then it is not good for jewellery because it will be scratched by other substances and will effect its sparkle and life. Because it can only be scratched by other diamonds, it maintains its polish extremely well. Unlike many other gems, it is well-suited to daily wear because of its resistance to scratching—perhaps contributing to its popularity as the preferred gem in engagement or wedding rings, which are often worn every day.

    High electrical conductivity: Diamonds are used as semiconductors: some blue diamonds are natural semiconductors, in contrast to most diamonds, which are excellent electrical insulators. The conductivity and blue color originate from boron impurity. Boron substitutes for carbon atoms in the diamond lattice, donating a hole into the valence band

    Graphite vs diamond: Allotropes of carbon. Graphite with 3 and diamond with 4. Here are the crystalline structures of graphite and diamond. Graphite on the left and diamond on the right. Graphite carbon elements are bonded with 3 other carbon elements whereas diamond carbon elements are bonded with 4 other carbon elements. This is the reason why graphite is weakest material and diamond is strongest material



    Refractive index: It describes how fast light travels through the material. For diamond it is 2.412. This index plays a vital role in the diamond. The time taken by light to pass through vaccuum compared to time taken to travel through a material. Refractive index of vaccuum is 1, ice is 1.31, water is 1.333, window glass is 1.52, diamond is 2.42. This index states that the light speed is reduced more than half in diamond. This makes the material diamond to store more and more light and start dispersing it out late. This will eventually make the diamond sparkle because of storing more light inside. Finally excellent crafting of polished diamond will make even more light to stay inside. Finally diamond will look beautiful or amazing

Comments

Post a Comment

Popular posts from this blog

Tools and equipment

Crafting of diamond need tools and equipment to polish a rough diamond to a jewelry diamond starting from import into factory to export. Technology has grown enormously in 21st century where you put a sawn (cut) diamond in a machine and get jewelry diamond in few hours. Lets start from the history.      History:      Diamonds were used to cut diamond rubbing against each other. In 15th century, tools were invented and among them Scaif is the best invention by Lodewyk Van Berken. Scaif is a polishing wheel infused with a mixture of olive oil and diamond dust. Diamonds are put in contact to scaif which rotates at 3000rpm. This helps polishing the diamond. The time taken to polish has drastically reduced at higher quality. Polishing tangs have been introduced to hold diamond when you put the diamond in contact to scaif.     TOOLS & EQUIPMENT       1. Galaxy machine:     Product of Sarin that makes the diamond surface tran...
Post a Comment
Read more

Window polisher

Polisher deals with the rough diamond. Follow planners' pen marking to polish and return back to the planner/ section monitor/ section supervisor. This task is performed because of following reasons: Surface of the diamond is frosted or coated Inclusions are clearly visible though the surface is clear Understand depth of inclusions To confirm inclusion type or nature To confirm the clarity Responsibilities: Check every parcel have diamond when receiving parcels from stock controller Check weight of diamond in weighing scale and confirm if it matches with the current weight mentioned in the parcel Be sure that you fully understand pen marking by the planners Consumables, tools and equipment are available and in good condition Opening the scaif should be done just before shift end so that you are ready for tomorrow Cover your scaif and oil your tang when going for weekend or holidays Ensure your polishing mill is clean and tidy before knocking off for the day Scaif have to be balance...
Post a Comment
Read more

Bottom polisher

Follows finishing supervisor instructions written in parcel to polish and return back to the finishing supervisor. They will confirm if polisher polished according to the instructions and the diamond need anything more to be polished and then send it to the section QC for polish and symmetry quality check. This task is performed because of following reasons: Ensure parameters, polish and symmetry are met as per rough estimations Finalize the bottom Responsibilities: Check every parcel have diamond when receiving parcels from stock controller Check weight of diamond in weighing scale and confirm if it matches with the current weight mentioned in the parcel Be sure that you fully understand finishing supervisor instructions written in parcel Consumables, tools and equipment are available and in good condition Opening the scaif should be done just before shift end so that you are ready for tomorrow Cover your scaif and oil your tang when going for weekend or holidays Ensure your polis...
Post a Comment
Read more
☌