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Ask Diamond Dave

Dear DD,

Last week, when I was doing my nails, I noticed a white spot on the edge of my diamond that I had never seen before. I tried to clean it off, but it didn’t go away. I ran my nail over it and it felt rough. Did I break my diamond?


Dear Broke,

Yes, it sounds like you indeed have chipped your diamond. The first thing you should do is . . . stop wearing it.

Breaks usually occur near the prong, and if it’s not loose yet, any knock may pop out the stone, and you may lose it. It’s much better to have a chipped diamond than none at all! Also, more pressure on the diamond may extend the crack, and we don’t want that either.

The diamond has to be given to a skilled diamond-cutter for repair. There are 100 points in one carat. Sometimes the repair can involve just shaving off a couple of points and it’s not such a big deal.

If the break is bigger, it gets more complicated. A round stone requires cutting not only at the point where the stone is broken, but also on the other side, to keep the diamond round. On “fancy” (not round) shaped diamonds, the breaks usually occur at the points. This would also involve, at times, slightly shortening the diamond. The primary shape and cut can’t really be compromised.

There are an infinite number of possibilities of what damage actually occurred, but an expert cutter can keep it to a minimum.

Besides the loss of weight and the labor costs involved, there can unfortunately be an even greater loss. That would be in the event that you lose the “size.” That means that if your diamond originally weighed 1.08 carats and the recut requires a loss of 10 points, your diamond will only weigh 0.98 carats after recutting. A diamond weighing under 1 carat is worth significantly less than it was before, when its size was above 1 carat. This is how you have lost the “size.” The same holds true by all “size” categories.

Insurance policies vary, as do deductibles. Even if the policy basically covers theft or loss, damage such as yours could possibly also be covered. Discuss this with your agent, and do not do anything with the diamond before clarifying your coverage. You will probably need to submit an official estimate of the full loss factor and labor costs in order to collect.

Diamond Dave

“Diamond Dave” is an expert in the diamond and jewelry retail industry. Send questions and comments for him to

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Posted by on February 28, 2014. Filed under In This Week's Edition. You can follow any responses to this entry through the RSS 2.0. Both comments and pings are currently closed.