From the home page, below, you can learn more about this cut. However, you will also learn that the cut angles, number of cuts and other cutting and polishing details are proprietary.
tad is a maker's mark. It may be registered or unregistered.
Yes, finished diamonds may have a lasered inscription, or other mark created by another diamond. Usually, these are used to identify or brand a diamond.
The 'field test' for diamond is extreme hardness. You should be able to mark glass with it. You can only be certain of your find if you take it to a jeweler, who will use a probe to determine whether or not the stone you've found is an uncut diamond.
Take your diamond to a certified gemologist to determine the cause of the line. It is not a normal occurrence in a diamond: the line may be man-made. Your stone may be 'capped' with a diamond above the girdle and may be another stone below the girdle, or two stones glued together. This is highly unusual, but is possible. The line may also be a jeweler's mark, made with ink.
always mark the area, not the item
Trubrite appears to be the name of a jeweler. A round cut diamond contains 58 facets, regardless of the jeweler's mark on the metal setting.
The NPFA mark is used for materials that can ignite.
yes try it
The identification mark on a diamond looks like the brand identification mark of the diamond processor that inscribed it on the diamond. See below for, the DeBeers Forever Mark (TM), and the Canada Mark (TM) for diamonds mined in Canada. Another identification is one you can purchase from the Gemological Institute of America, that they inscribe on a diamond that matches the certificate that you buy which documents the diamonds qualities. You can also read more about this identification, below.
No, he does not.
Diamond
Diamond
the diamond stamp is the earliest HaegerPottery mark. it was used in the 1910's thru the 1920's. a green, diamond shaped sticker with the words "haeger potteries" and "dundee, illinois" replaced the diamond stamp.
Yes. Diamond is the hardest natural mineral. This would be especially evident using a diamond-tipped tool to mark steel.
there is a heart, fire, question mark, science logo, leaf, star, dirt, water drop, dew drop, moon shape, and diamond shape essencce on My sims kingdom.
Mark Sadler has written: 'Circle of fire'
the diamond lines up about 12:00 and the triangle about 5:00 in line with the triangle mark on the inner cover