I'm trying to get that #18 onyx to complete the Satoshi Nakamoto rainbow, as I hold the #18 diamond. It's tough to 1) connect with the person who holds the onyx that pairs your diamond, 2) successfully negotiate a sale or trade one way or the other, 3) get all the remaining refractors in the set. I have only completed step 1, and step 2 may fail for me on the #18. I still have two chances with the #22 stock-to-flow and #44 bitconnect diamonds if I fail, but of course the #18 satoshi is the most desireable of that set.
I put together a third base set and now trying to make a fourth, just for fun, and because I am pretty close just from buying packs looking for those refractors and redemption or CF cards. I have a long way to go to getting the full beryl set but I'm still sniping eBay auctions when nobody else is looking
I got them all put into penny sleeves, top-loaders, and now finishing putting them into toploader-binders. It's nice to see them in the binders rather than just keeping them in stacks in a big ziploc, lol. Much better for display and preservation long-term.
I did finally complete both the holo and CS sets. I have all the CS meta-rares, and working on the holo meta-rares now. Can someone remind me which holo meta-rares are known to exist? Last I remember, some were thought to not exist...
I would consider the 1A diamond to be probably the most desirable card in the entire set, with the 1 and 28a to be close behind.