(Closed) Resize Costco Ring 7 to 4.5 ?

posted 5 years ago in Rings
Post # 3
9561 posts
Buzzing Beekeeper
  • Wedding: October 2013

if the recommendation is 1 ring size, i would not jump down 3 sizes.  does it void the warranty?  does it make the ring unstable.

i suggest finding a ring in the right size or within 1 size to resize.

Post # 4
484 posts
Helper bee
  • Wedding: October 2016

View original reply
smyled: Beautiful set! Personally I haven’t resized with Costco but looking at the photo it shows that the ring is 3/4 eternity which is a good thing for sizing! Full eternity bands/settings are difficult enough to resize that it’s discouraged by most. Sizing down is probably preferable to sizing up due to having more material to work with. 

I’m not a jewelry professional and by no means an expert but it seems possible. To be sure I would show the photo to a jeweler you trust and explain to them the situation and see how they’d handle it.

Post # 5
1321 posts
Bumble bee

You should not size up or down more than 1 size with a Pave setting. Also just FYI, you could get the same thing for less money elsewhere.

It doesn’t tell you the quality of the cut of the diamond on costco’s website from what I can tell, which would worry me. You really want to stick to excellent cut, it makes a big difference.

On James Allen’s website, you can pick a diamond with the same specs AND excellent cut, and the diamond costs around $4300. You can also pick a pave platinum setting, the cheapest one I saw was $700. That leaves you $3k for the wedding band, and you can get a pave platinum wedding band for less than that. So I suggest you check out jamesallen.com and order a ring in her size and save some money while ensuring it’s the best cut 🙂

Post # 6
176 posts
Blushing bee

I’d also check our Adiamor as a price comparison with James Allen. Good luck!

Post # 7
4233 posts
Honey bee


Lovely ring!

But I would not even attempt to size bejeweled shanks more than 1size. Do whatever you can to find it already to size.

Happy shopping!


Post # 8
15277 posts
Honey Beekeeper
  • Wedding: June 2011

View original reply
tjacob2014:  +1

Costco is great prices and specs compared to other chain stores likes Kays, Belden, etc… but you can get similar prices from other reputable online retailers like Blue Niles, James Allen, etc and they can make your ring to the correct size.  I wear a 4.5 and personally woud be uncomfortable sizing a 7 down to 4.5.

Post # 9
1258 posts
Bumble bee
  • Wedding: May 2014

Beautiful ring, but they don’t recommend sizing it down that far because of the side stones. .it would cause them all to become loose. I also recommend looking at James Allen, they are wonderful. 

Post # 11
1494 posts
Bumble bee
  • Wedding: October 2015

View original reply
smyled:  My fiance had my ring resized 2 sizes from costco. It was originally a size 7 and he made it a 5. The ring was a little loose still so we went to the jewler who said sizing down any further can disturb the pave diamonds too much and they may start falling out so he ended up inserting  two ball bearings on the inside of the ring which make it snug on my finger. I would suggest you go to a reputable jewler who will advise you what you should do.

Post # 12
3434 posts
Sugar bee

I resized my Costco size 7 engagement ring down to a 5.5 or 5.75 (I forget what it was).  But it was a plain band (platinum) with a round solitare setting so there wasn’t anything to really mess with as for the band was concerned.

Post # 13
4640 posts
Honey bee
  • Wedding: December 2011

Think of it like an ice cube tray and the diamonds are the ice cubes. If you bend it more by making it smaller, the diamonds are more likely to pop out and be loose from the major resizing down.

Post # 14
1047 posts
Bumble bee

I agree w/ lilsweetie. I wouldn’t do it. 

Also, Costco will charge you sales tax on top on the $8k for the ring. For that reason alone we decided to buy from an online dealer (James Allen). Since they are in another state (NY) we saved hundreds!!! from not paying the tax. 

Post # 15
4 posts
  • Wedding: March 2018

Thread necro here, I know, but for those stumbling upon this thread for information, I wanted to add my personal anecdote: Costco sells sizes 5, 6, and 7 online (but only size 7 in store). You could always order the 5 online, check it out and then if you don’t like it return it to the warehouse for a full refund. That way you’re not doing any drastic sizing down. 

My FH bought my ring at Costco, but we had the opposite problem….I’m a rign size 9.5 but was in love with one of the rings I found at Costco and nothing else compared. After hemming and hawing and consulting with multiple local jewelers, we bit the bullet and bought the Costco ring planning to size it up. We took it to a well-respected and trusted local jeweler with an in-house bench and he sized it for us with NO problems. All of the stones are tight in their prongs and you can’t even tell that it’s been re-sized!

If you go with a reputable jeweler you can definitely size past the Costco-recommended one size either direction, and you’re getting a GREAT deal. The jeweler we went with said the ring was exquisite and appraised it for nearly double what my FH paid for it!!

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