Whether it is better to sell gold and silver jewelry as-is or refine them into bars or coins first depends on several factors. Here are some considerations to keep in mind:

1. Purity of the jewelry: The purity of the gold or silver in the jewelry is an important factor to consider. If the jewelry is of high purity, then it may be preferable to sell it as-is rather than refining it, as the value of the jewelry would already be close to the value of the refined metal.

2. Cost of refining: Refining gold and silver jewelry into bars or coins can be a costly process. If the jewelry is of low purity, or if the refining process would be expensive, it may be better to sell the jewelry as-is.

3. Demand for bars or coins: The demand for gold and silver bars or coins may be higher than the demand for jewelry, especially if the bars or coins have a specific weight, size, or design. If there is a high demand for bars or coins, it may be more profitable to refine the jewelry into these forms.

4. Personal preference: Ultimately, whether to sell gold and silver jewelry as-is or refine them into bars or coins is a personal preference. Some sellers may prefer to preserve the original design and craftsmanship of the jewelry, while others may prefer the simplicity and uniformity of bars or coins.

In conclusion, whether to sell gold and silver jewelry as-is or refine them into bars or coins depends on several factors, including the purity of the jewelry, the cost of refining, the demand for bars or coins, and personal preference. It's important to consider these factors carefully and weigh the pros and cons of each option before making a decision.