A first order does not need to cover every style. Start with a focused mix of easy-to-merchandise pieces, then watch which silhouettes customers pick up and ask about.
Start with a balanced mix
Combine everyday earrings, a few giftable rings, and one or two higher-impact pieces. This gives the display enough range without making the opening buy feel heavy.
Use the first reorder as your signal
Track the styles that sell through fastest, the price points customers accept, and the pieces staff naturally recommend. Those observations make the next order more useful than a larger first order.