As you can tell by the sample pictures, the choice of silver or gold large rings can change the warmth of the niobium colors quite a bit. The pictures show earrings made from the same batch of niobium rings – any perceived color difference is due only to the silver/gold difference.
The ring sizes in this kit are 11:19(ss/gf) and 6:20nb. Please note that the earring hooks do match the niobium rings within a kit. Color batches vary, but I’m anodizing hooks and rings in the same batch for these kits, so they’re varying together.
And if you’re not in the mood for niobium, I do offer all-one-metal versions.
Instructions are sold separately – these kits contain only the jump rings and matching earwires.