Repairing and recutting a diamond does not happen typically, but it does to diamonds that have been damaged or people who weren't well made when originally cut. It is not too typically that a jeweler wants adequate information within the repair or recutting of a diamond, however there are some losses because of the lack of a complete understanding of the possibilities.
The most common of all diamond accidents in the trade is the chipping of the sting, or girdle, of the good throughout the operation of the setting the stone. It is the well-liked opinion of the public that diamonds are too hard to endure mechanical injury. However this isn't the case, using a careless file can lift tiny flakes from the upper surface of the brilliant. Whereas the diamond is much harder than a file it isn't as tough. Most frequently when a file is misused a skinny layer of diamond splits off. The cut up types an ideal cleavage of the diamond, which causes it to separate simply in sure directions. The rough cleavage will mirror in each part of the stone. Any such serious injury can wreck the stone.
Whenever a stone owned by a jeweler or customer is injured, it should be sent to a reliable diamond cutter, who, unless he is instructed to remake it to the ideal proportions, regardless of lack of weight, will use his best judgment in repairing the injury so as to depart the stone in the best salable condition.
When an injured stone is offered for sale, and there's not a possibility to have it studied by an professional, the jeweler should look at the stone and decide how much the stone will sell for repaired. When purchasing a damaged stone jewelers will often give low offers. The danger of buying a broken stone is that, when the repaired stone is sold it will not yield the type of return the jeweler would have expected.
Diamond injuries also happen in the hands of a careless setter, or while being worn as jewelry. When diamonds rub together, the sharp edges are worn down. Diamonds are generally known as angry stones because after they rub collectively they injure one another, thus unfastened diamonds must be saved apart. Worn diamonds can after all be repolished, however doing this a number of occasions will reduce down on the burden of the stone.
One other sort of injury that happens to diamonds is excessive heating, as in fire exposure. If a diamond is heated to a high enough temperature, it will possibly unite with the oxygen from the air causing blemishes. The harm to the stone will be substantial and fixing it'll lead to a lack of weight.
Recutting of diamonds can also be price a number of attention. Recutting is often an option when
Antiquity of the existing make
Over thickness, or lumpiness exists
An overspread condition of the diamond
Diamonds in the old-fashioned square or cushion form, with overthick make and with a large cutlet are recognized in the trade as old-mine stones. These old mine stones are becoming a bit scarce, most of them have already been lower to modern form. Typically old-mine stones end up within the palms of pawnbrokers because most jewelers won't give them the time of day. Typically instances the old-mine stones are left too thick and are considered lumpy.
Not every old mine stone has the remakings of a superb gem. It pays for jewelers to review reducing and remaking of old gems. Having this sort of information will virtually at all times help the jeweler in detecting defective make in modern lower stones.
Within the case of overspread stones the central weak point or fish eye effect may be corrected by recutting to reduce the spread. Spread is a really desirable characteristic in a diamond, Jewellery repairs london
care have to be used to not reduce it unnecessarily.