Welcome to Jewel by Lisa!
This is a website about gemstone jewelry and an educational hub for people who want to do research on their jewelry purchase. To get you started, check out the article about the use of platinum as a jewelry material and how it differs from white gold.
Introduction to Platinum
Are Platinum and White Gold Similar Metals?
No, they are quite different. To create white gold, yellow gold is alloyed with other metals to achieve a white look, see our section “About Gold”. However, it does not have the same purity, strength, rarity, durability or natural white color as platinum. White gold is an alloy of gold and some white metals such as nickel, silver and palladium. White gold can be 9k, 10k, 12k, 14k, 18k, or any karat up to 24k.
For example, 18k yellow gold is made by mixing 75% gold with 25% other metals such as copper and zinc. 18k white gold is made by mixing 75% gold with 25% other metals such as nickel, silver and palladium. So the amount of gold is the same but the alloy is different.
How should I clean my platinum jewelry?
With the same care you clean other fine jewelry. Use a pre-packed jewelry cleaner or have your jeweler do it. As with all precious jewelry, store with care, separating pieces with soft cloth.
Why is platinum’s purity important?
First, platinum is hypoallergenic and resists tarnish, making it easy for sensitive people to wear.
Second, platinum’s purity makes it one of the strongest, most durable metals in the world. Platinum has often been described as the purest, or the most precious metal. Both these claims are slightly inaccurate. The price of pure platinum is generally higher than gold, but not always, therefore the claim that platinum is the most precious metal is also a typical marketing exaggeration.
Which platinum is best for jewelry?
We recommend .950 fine platinum. 95% Platinum: This alloy is 950 parts per 1000 and 50 parts other metals like iridium and ruthenium. We also prefer the platinum iridium alloy because iridium is harder and less expensive than ruthenium.
Can Platinum be combined with gold?
Absolutely, many platinum designs combine beautifully with karat gold. The color combination is beautiful and adds versatility to your wardrobe.
Does Platinum Scratch?
Like all precious metals platinum does scratch though its tremendous density makes it much tougher than other precious metals. With highly polished pieces, it may be easier to spot a scratch, because the contrast of the polish and the scratch is greater. Unlike most precious metals, platinum loses virtually no metal when scratched. It is merely displaced on the surface. Instead, platinum separates and makes way for the scratch.
Over time, a natural patina develops, a matte luster many prefer to the “just polished” look. Typically platinum is alloyed with copper, iridium, palladium, cobalt, ruthenium, tungsten, gallium or indium. It can also be alloyed with rhodium, osmium or titanium but these are rarely used.
Why is Platinum Expensive? Supply and demand is part of the answer. In recent years, many new industrial uses for platinum have emerged and grown. Because of the high melting point, and the other difficulties in extraction and refining, platinum is expensive to buy and process. This includes higher labor costs for manufacturing it, and also higher expense in recycling it.
For diamond jewelry information, DiamondReview.com is a god send to consumers who love reading up and doing research. Do check the website out!