It was always my understanding that many jewelry stores pay about a 1/4 of the retail price and sell the piece for 40-50% off the retail price.
Save for the Cartier and if you truly don't want the other items anymore, try selling it through ebay or another format where someone is looking for the designer brand.
I was trying to buy at that auction. These high prices really happen very infrequently. This was someones collection so the buyers were out. These were the necklaces with many motifs. Between buyers & seller premiums said:Thanks for the info, these prices struck me as unusually high as well, after all why pay 10k(20 motif gold alhambra) for a necklace at an auction when you can get the same thing for the same price at the store.
And that's a hefty cut for Christie's....
Yes, Ebay and sometimes people do okay on Craigslist (but there you have to take precautions for your safety if you are going to meet up with a stranger).
It can't be repeated enough that you should only buy things that you like and can afford--and 'afford' means that you have savings in MONEY for emergencies and for the future and no credit card debt that you couldn't pay off if you lost your job, in these iffy times.
designer names mean nothing unless the item is currently desirable (and even then you will get less, especially if going through a third party); gold is only worth the scrap value (and often there's not much gold in pricey designer items); colored gemstones generally do not re-sell unless you are the Duchess of Windsor's estate and there is a provenance and most diamonds also are worth nothing on the secondary market. Literally NOTHING. It's an education to go to the pawn shop and see all the diamond rings lined up for cheap, including some very nice ones. with an appraisal they go for a little bit more than nothing. With an AGS or GIA cert, if its a desirable quality (G, H and above, VS and above) you MIGHT get 50% what the current going price is. You MIGHT, if you have time to look around and find the right venue. Most often, the jeweller you bought it from only wants to take it back if you are doing 'trade-up'--and believe me, they make $$$ on the trade-up.
Most often, jewelry I don't want anymore, I give it to someone else, either a friend or in the family, then somebody is still enjoying it and I'm not aggravated by the peanut amount I would get offered trying to sell it. I have some solid gold (22k and 24K) that I bought for not much more than scrap value, by weight and maybe in an emergency, if the gold price was high, I would get something for it . IF the gold price was high. I can remember when gold was $200/oz, not so long ago. It's getting so high now that I think it might be a bubble, due for a crash, when it will be worth nothing again.
Jewelry can be worth a little bit, unlike old clothes (even designer) and handbags, but it still is nothing to depend on, even for re-sale to get something else. I buy it because I enjoy it (and have other savings). I enjoy the sentiment a lot (my DH gave me this, my grandmother left me that) and hope to pass it on one day to people who love me and will enjoy the sentiment. Jewelry becomes VERY valuable, when you can say, like Prince william just did to Kate, "I'm giving you my mom's engagement ring because I love you so much and I loved her and its a way of making her part of our love for each other, even though she's dead)--even if Mom had a 1/3 carat K color I1 diamond that would sell for $250 including the ring, in the pawnshop, instead of a giant sapphire surrounded by diamonds. (More valuable, if Dad, unlike Prince charles, bought it with love).