I said something about how included the center stone is and he
said pink tourmaline is always highly included, because of the
"paragenesis" of the rock in which it forms (I use quotations
because it's Greek to me. Isn't it?)
Paragenesis refers to minerals that form in contact with one another
(the inclusions), affecting each other's development during growth.
Red/pink tourmaline is considered a Type III gem, meaning that it is
likely to be included with eye-visible inclusions. I suspect he was
trying to impress you with vocabulary.
So I thought of putting it on eBay, since a friend of mine is
doing that now. However, the pink tourmalines I see there don't
look very included. And everybody seems to list carat weight for
their stones. I'm assuming that, to get carat weight, the (faceted,
but bezel-set) tourmaline, and one of the surrounding sapphires,
would have to be removed, and then re-set (am I right?). I'm
wondering if the ring is worth the cost of that (it's not something
I'm set up for, and I've never removed stones, only set them).
If you spend much time on eBay, you will find that gemstone auction
photos are often only representative of what they are selling, and
not the actual stone. In other words, what you see is seldom what
you get. You mentioned that you were looking at stones on eBay, not
necessarily finished jewelry. Those are much easier to weigh. There
are formulae to estimate gemstone weights by measurements and
specific gravity, but there are other factors, such as estimating
girdle thickness which require some experience. You'll also need to
measure the depth of the stones, too. That's the reason designers
leave the little hole in the setting for faceted stones, not for
light, as many seem to believe. It is perfectly ethical to advertise
your ring by the outline measurements of the stones, i.e., 8X10 pink
tourmaline, ten 3.5mm sapphires. Carat weight is a plus, but it
wouldn't be worth the time to remove and re-set these particular
However, when I asked the gemologist, a week or so after he'd
looked at it, he suggested I ask for $600-800 on eBay... I wonder
if he forgot the chip, or if he's right.
eBay is a strange place to buy and sell. You could put it up for
auction at $0.99 with no reserve several times and never get a bite.
Then you could put it up with a starting reserve of $500 and wind up
with even more. This actually happened to me once, years ago. I only
have 24 actions on eBay over a period of six or seven years, so I'm
no expert. But I've always used a starting bid of the minimum amount
I wanted to get for an item, with no reserve. The trick for me is to
only offer things that are a bargain for buyers, but profitable for
me. If it's worth 30 and I paid 10, I offer it for 20.
Whatever you decide, I hope it goes well for you.
James in SoFl