To determine the price of a 10g gold chain, we need to consider several factors:

1、Gold purity: Gold jewelry is often made from alloys, which are mixtures of gold and other metals、The purity of gold is measured in karats (kt)、Common purities for gold jewelry are 10kt, 14kt, 18kt, and 22kt (or 24kt for pure gold)、The price will vary based on the purity.
2、Current gold price: The price of gold fluctuates daily based on market conditions、As of my last update, the price of gold per gram can vary, but let's use a hypothetical price for illustration、Assume the current price of gold is approximately $60 per gram for 24kt gold、Prices for lower purities will be adjusted accordingly.
3、Design and craftsmanship: The design complexity, brand, and craftsmanship can significantly affect the price.
4、Market and location: Prices can vary depending on the retailer, location, and market conditions.

Let's calculate with a few assumptions:

24kt (99.9%) Gold Chain:
If gold is at $60 per gram, a 10g chain would be approximately $600.

18kt Gold Chain:
18kt gold is 75% gold、So, for 10g of 18kt gold, you'd have 7.5g of pure gold content.
Assuming the price of pure gold is $60 per gram, the value for 7.5g of gold would be $450、However, 18kt gold jewelry also includes other metals, and its price per gram as jewelry would be higher than pure gold、Let's assume the price for an 18kt gold chain could be around $80$120 per gram, making a 10g chain approximately $800$1200.

14kt Gold Chain:
14kt gold is about 58.3% gold、For 10g of 14kt gold, you'd have 5.83g of pure gold content.
Using the same gold price, the gold content value would be around $350 (5.83g * $60/g)、The actual price for a 14kt gold chain could range from $500 to $900 for 10g, considering it's an alloy and additional costs.

Keep in mind, these are rough estimates and do not include the design, brand, and craftsmanship value, which can significantly increase the price.

For an accurate and uptodate price, I recommend checking with local jewelers or online retailers、They can provide current prices based on the gold market and their specific designs and craftsmanship.