Vectors and 3D Models
Local Search - Scams
Weather Information
Get the App for Smartphones and Tablets

Go Back

WhmSoft Free Articles Directory
Free Articles for Reprint
Free Articles to Publish
Free Articles for Newsletters
Videos to Watch

Page Generation Date and Time:
12/09/2023 06:32:46

Free the Animation VR / AR
Play to reveal 3D images and 3D models!
Demonstration A-Frame / Multiplayer
Android app on Google Play
vlrPhone / vlrFilter / vlrMemos
Project of very low consumption, radiation and bitrate softphones / Multifunction Audio Filter with Remote Control / App to measure the quality of the voice!

Alexa Data

Go To Articles Directory Home Page

To get the current article, - See Below (at the bottom of the page) -.
For top news titles, see below.
Web sites and videos listed in this page are frequently updated.
If you find that this page is useful (quality of web sites, images and videos, ...), you can add it to your favorites.
Bookmark Page !

Tell a Friend:

With your mobile phone (WAP / I-Mode / iPhone / PDA), for free:
The Top News -
The Daily Files -
All the Directory Files -

Web version of feeds:
Podcast Music -
Daily Files -

You can play the Guitar Drum Revolution game (flash game) by following the link below:
Play Guitar Drum Revolution Game

You can play free online games (flash games) by following the link below:
Free Online Games

Play the samples below:
01559 L Arbre De Noel01750 Tikiz1159 BaseballAir FightingGluefo
01559 L Arbre De Noel01750 Tikiz1159 BaseballAir FightingGluefo

You can view the people (celebrities) news and the front page news (with videos, images and constant updates) by following the link below:
View Recent News
or by visiting the WhmSoft Service blog:
News Photos Slideshows

Article Keyword Videos to Watch
Click on the image to start the video.

Related Topics
Images - Links - Articles


Related Images

Article Category Videos to Watch
Go to the Videos Pages

Beware: Platinum Quality Can Vary in Jewelry

Platinum has become a popular choice for jewelry due to its strength, durability, and marketing efforts of the platinum industry in recent years. Platinum is three times more expensive than gold. Jewelers aggressively market it because they make three times the profit on every platinum item they sell compared to gold. Platinum is a naturally white, lustrous metal that is long lasting. Sometimes the claims of strength and scratch resistance are overstated. Like all precious metals, platinum will scratch. A platinum scratch is different from white gold because it simply “plows” the metal instead of removing it.

Traditionally, jewelry manufacturers used platinum alloyed with metals from the platinum group metals (iridium, osmium, palladium, platinum, rhodium, and ruthenium). With the proper mix of these platinum group alloys, platinum becomes one of the hardest metals making it a strong and durable jewelry metal. Platinum will not rust or corrode and the platinum family metals make it hypoallergenic and ideal for persons with sensitive skin.

Federal Trade Commission (FTC) guidelines for platinum jewelry state that only items consisting of 950 part per thousand of pure platinum can be marked stamped “PLATINUM” or “PLAT” without more alloy information. From 750-950 Platinum, the platinum group metals must also be indicated. For example, PLAT900IRID for 10% Iridium alloy. Historically, the most common alloys in America were 95% Platinum with 5% Ruthenium or 5% Cobalt and 90% Platinum with 10% Iridium.

There is a misperception that the 950 platinum is better than the 900 platinum. However, pure platinum is very soft and the right alloy mix is what is important. Different alloys and different percentages produce better results for different jewelry purposes. Some alloy mixes work better for casting and some are better for handcrafting like bending the prongs over fragile diamond corners. Many artisans feel that PLAT900IRID is the best general-purpose alloy for diamond rings.

While platinum is best known for its use in jewelry, more than 60% of platinum is used for other industrial purposes such as catalytic converters in autos and pacemakers in the medical field. Because of its rarity and the rapidly increasing demand for this versatile metal, the price has soared in recent years.

The high price of platinum has caused some jewelry manufacturers to start using lower percentages of platinum and to use other alloy metals to lower the cost of the jewelry. Unfortunately, these new alloy mixes are reducing the very qualities that made platinum desirable. The new alloys produce more brittle platinum that is more susceptible to damage.

For example, metal that is stamped 585 Platinum is really only 58.5% pure platinum and 41.5% copper and cobalt with the result that it is more likely to crack, crater, discolor or irritate sensitive skin. Less scrupulous jewelry vendors remove the 585 stamp and complicate the situation, leading consumers to believe the metal is the traditional high quality platinum.

Historically the jewelry shopper did not have to be concerned about the purity of platinum because the alloy metals were in the platinum group the quality was uniform regardless of the particular alloy or percentage used.

Today’s jewelry shopper is at potential risk because the lower quality platinum looks the same as the higher quality platinum. While platinum looks similar regardless of the alloy, the weight of lower quality alloy mixes is lower because there is so much less of the dense platinum.

Currently there are no FTC guidelines for the new platinum alloys so it is up to the jeweler or appraiser to help the consumer determine if the platinum is well suited for its intended use. The consumer deserves a warning if sold lower quality platinum since it might not hold stones as well and is more susceptible to damage. However, do not expect the jeweler selling low quality platinum to point out this potential problem. As with any important purchases, it is up to the consumer to be knowledgeable and ask the right questions before making a purchase.

About the Author: Denny Reinke is the Vice-President of Diamond Source of Virginia, an online diamond retailer specializing in loose diamonds, diamond rings and diamond jewelry located in Richmond, Virginia and on the web at You can also visit Denny’s blog at

Recommended Web Site(s):

Easy Articles Home Page - Articles Directory

Recommended WhmSoft Web Sites, Feeds and WAP Address:

WhmSoft Software Home Page - Software
WhmSoft Services Login Page - Music and Images
WhmSoft Moblog Home Page - Blog - Photo Gallery
WhmSoft Free Online Games Home Page - Flash Games
WhmSoft Services RSS Feed - Daily Music, Image and 3D Flash Animation
Classical Music with Drum RSS Feed - MIDI and MP3 Files
Classical Music with Drum Podcast Feed - MP3 and MP3 Files
WAP / I-Mode / PDAs - Daily Music, Image and Flash Animation

Home Pages:

WhmSoft Free Articles for Reprint Home Page
WhmSoft Services Home Page - Music and Images
Copyright (C) 2006-2023 WhmSoft - All Rights Reserved.