Dont be fooled into buying diamond engagement ring that is said to be .25 points. It is NOT a quarter of a carat, and will be so small that it should only be used as accent to other stone or the gold itself.
ideal cut diamond is strong bonding and carbon composition cause its surface to repel water but to readily accept wax and grease.
Since earliest days, it had been possible to cut diamond stud earrings only by using other wedding ring. Todays technology has altered this picture. Inclusions can be drilled with lasers. With the drilling of parallel holes, wedding ring can be sawn in any direction with lasers.