- Joined
- Aug 5, 2010
- Messages
- 12,884
Hi there
I'm a regular over in the CS forum, but seldom venture over here. I know embarrassingly little about diamonds, but have offered to help a friend. She has a white gold hearts on fire three stone pendant necklace that she wishes to sell. The style probably has a name - it is three stones descending in size from the biggest at the top down. Is that an eternity necklace?
Anyway, she wants to sell it and I will help her post it on DB. But a couple of questions first so I can give her a sense of value. Whenever I read threads on diamonds, people talk about "ideal cuts" and "hearts and arrows." I understand there is a quality system, but I'm just not that familiar with it. Is the fact that they are HOF diamonds significant in helping assess quality? I have asked her for the diamond certs and she does have some paperwork, but I don't know if it is from a preferred lab. Since the best diamond labs are different than the best labs for colored stones, can someone help me out by directing me to the reputable ones - are they GIA, EGL and AGS? What else should I know in determining diamond price? If the certs contain enough information (and they're not some inhouse fly by night certs), can I use the data on weight, cut, clarity, color, plug it in to the search criteria and see what pops up for prices, or is it better to come to you first, share the data and have you give me your opinions on value? Finally, I know there have been a few good threads on how to value items in the Preloved Jewels page. Would it be fair, after determining whatever the value is to discount it by a certain percentage, like the normal 20% - 30%, or do diamonds not work that way?
She thinks the necklace is worth at least $10,000. Eeep,
I hope her expectations aren't too high.
She also has two antique jade pieces that have been handed down for generations in her family. One is in the shape of a butterfly (probably a brooch) with diamonds and what looks to be high karat gold and another one similar in composition. I saw these on her i-phone as she keeps these in her safe deposit box. Is this perhaps the kind of thing one takes to an auction house like Bonhams, or is that ridiculously unrealistic?
TIA

I'm a regular over in the CS forum, but seldom venture over here. I know embarrassingly little about diamonds, but have offered to help a friend. She has a white gold hearts on fire three stone pendant necklace that she wishes to sell. The style probably has a name - it is three stones descending in size from the biggest at the top down. Is that an eternity necklace?
Anyway, she wants to sell it and I will help her post it on DB. But a couple of questions first so I can give her a sense of value. Whenever I read threads on diamonds, people talk about "ideal cuts" and "hearts and arrows." I understand there is a quality system, but I'm just not that familiar with it. Is the fact that they are HOF diamonds significant in helping assess quality? I have asked her for the diamond certs and she does have some paperwork, but I don't know if it is from a preferred lab. Since the best diamond labs are different than the best labs for colored stones, can someone help me out by directing me to the reputable ones - are they GIA, EGL and AGS? What else should I know in determining diamond price? If the certs contain enough information (and they're not some inhouse fly by night certs), can I use the data on weight, cut, clarity, color, plug it in to the search criteria and see what pops up for prices, or is it better to come to you first, share the data and have you give me your opinions on value? Finally, I know there have been a few good threads on how to value items in the Preloved Jewels page. Would it be fair, after determining whatever the value is to discount it by a certain percentage, like the normal 20% - 30%, or do diamonds not work that way?
She thinks the necklace is worth at least $10,000. Eeep,

She also has two antique jade pieces that have been handed down for generations in her family. One is in the shape of a butterfly (probably a brooch) with diamonds and what looks to be high karat gold and another one similar in composition. I saw these on her i-phone as she keeps these in her safe deposit box. Is this perhaps the kind of thing one takes to an auction house like Bonhams, or is that ridiculously unrealistic?
TIA