The high price of platinum can be attributed to its rarity and density, since precious metals are usually valued by their weight. While gold can increase in value the greater the carat, platinum is almost always worth more than gold. In general, platinum is not a better investment than gold. Gold is more stable, is more easily mined, and its price doesn't fluctuate as much as platinum.
And the value of gold is considerably greater than that of platinum. For people with a nickel allergy, platinum is a safer choice than gold, since nickel is usually one of the white metals that are alloyed with yellow gold when white gold is produced. Gold and platinum have very similar properties: durable, resistant and versatile, and white gold and platinum look similar to the naked eye. Many of the popular alloys (defined as any malleable base metal added to precious metals to improve their resistance to corrosion) for platinum use expensive metals, such as iridium or ruthenium, while gold is usually alloyed with much cheaper silver and copper, which are also much lighter.
Unlike gold or white gold, platinum is a very durable metal, making it extremely resistant to corrosion and wear, even without plating, unlike white gold. In addition, platinum rings usually have 95% pure platinum, while 14-carat gold is only 58.5% gold (18-carat gold is 75% gold). Mixing it with cheaper metals reduces the total cost and therefore makes platinum more expensive depending on its purity. Although white gold is exposed to chemicals such as chlorine, the tips can be damaged and are more likely to break.
Depending on the frame of the stone, platinum spikes may be easier to bend than white gold ones. Although similar, there is a discrepancy between the appearance of the white gold and platinum bands: platinum has a more silver finish, while white gold looks gray and sometimes duller.