How to Calculate the Value of Gold per Gram

Do you own a piece of gold jewelry and wonder what it is really worth? Or do you want to sell and don't know whether the price offered is fair? In a market where the price of gold fluctuates daily, information is power. This guide explains step by step how to calculate the value of gold per gram – simply, precisely and without surprises.

1. Identify the gold purity

The first step is to know what type of gold you are dealing with. The karat indicates the purity of the gold:

• 24K (999) – 99.9% pure gold – the most valuable, but rarely used in jewelry

• 22K (916) – 91.6% gold – popular in traditional jewelry

• 18K (750) – 75% gold – the standard for luxury fine jewelry

• 14K (585) – 58.5% gold – the most widely used in modern jewelry, including at Ava Rossa

• 9K (375) – 37.5% gold – the more affordable option

Look for the hallmark engraved on the piece – usually on the inside or on the clasp. If it is missing, consult an authorised jeweller.

2. Weigh the jewelry accurately

Use a precision digital scale with two decimal places. Weigh pieces separately according to their karat. If the piece has gemstones set in it, their weight is not included in the calculation.

3. Calculate the value according to the karat

The formula is simple:

(Price of 24K gold per gram x karat of the piece) / 24 = Value per gram

Practical example: If 24K gold is worth 90 euro/gram and your piece is 14K: (90 x 14) / 24 = 52.50 euro/gram

Then multiply by the weight of the piece in grams to get the total value.

Conclusion: Knowledge is power

When you understand how the price of gold is calculated, you no longer negotiate blindly. At Ava Rossa, we work exclusively with 14K and 18K gold, certified and properly hallmarked. Transparency and quality are our core values.

Gold jewelry with real value. Choose Ava Rossa.