carbon deposit

[huh]

Can a blemish that wasn''t apparent suddenly appear? I bought a engagement ring and looked at it through a jewellers loupe there where only minor blemishes, after a week my fiance noticed a large black mark. Now 6 months later it looks like another is appearing in the stone too??? How or why is this possible>>or is it??

 

[valeria101]

----------------
On 6/19/2004 2:05:46 PM huh wrote:



How or why is this possible>>or is it?

----------------

If this was an emerald with shoddy fracture filling I would understand, but a diamond? No idea... and it does not help that I can't see what you see.

If a professional cleaning does not help and there are no noticeable scratches on the setting that could reflect around, I am running out of ideas.

 

[huh]

Thank you for the reply. The funny part is that the first time we had it sized and the second time we had to get a loose stone replaced. I just wondered if blemishes could appear without someone actually changeing the stone.

 

[valeria101]

----------------
On 6/19/2004 2:36:25 PM huh wrote:



I just wondered if blemishes could appear without someone actually changing the stone.

----------------

No, and I bet the stone is the same.

If the ring was worked on, it sounds like those could be traces from soldering or polishing that should clean away.

 

[strmrdr]

As Ana said little bits of polishing compound on the diamond can do this and be very stubborn to get off.
I was at a store the other day and a customer was very upset that another jeweler had switched diamonds on her because she was seeing inclusions in a vs1 stone without a loupe.
30 min and a good cleaning later she walked out smiling because her diamond was visible "inclusion" free again.
Talking to the jeweler he says he runs into stuff like that a few times a month and usually its the same place that does the crappy job cleaning the rings after working on them.

 

[diamonddoll]

Sometimes you can see a reflection of the prong in the diamond. But I'd be willing to bet it's a bit of polishing compound. Have it steam cleaned at the jewelers.