With the enthusiasm for the purchase of various precious jewellery such as jewellery and jade jewelry, a variety of genuine and fake jewels appear on the market, making it difficult for people to recognize the authenticity. In order to prevent the purchase of fake jewels or jade articles, it is necessary to pay attention to the following matters.
Surface coloring method. Colourless gemstones or lighter colored gemstones are soaked in a colored solution that causes the pigment to precipitate on the gemstone surface to change the color of the gemstone itself. This treatment method was originally mainly used in porous and cracked jade, but now it is mainly used in crystal falsification, that is, the colorless or light-colored crystal is soaked in yellow or purple solution to imitate yellow crystal and amethyst. In addition, the market also has a purple-red pen on the colorless bracelet surface painted imitation violet phenomenon, this method of treatment is relatively simple to identify, as long as the attention will not be fooled.
Blindfolding. Colorless gemstones or lighter-colored gemstones are colored with colored ropes, which are mainly used for topaz, amethyst, aquamarine, and topaz. Strictly speaking, this cannot be treated as a method because it does not handle the gemstone itself, but this method is easy for the first mover to miss the price judgment.
Fish head mixing method. Mix other cheaper jewels like synthetic gems, processing gems, etc. in a bead chain. Such as yellow crystal mixed glass, natural crystal mixed with synthetic crystal, tourmaline in the mixed crystal, emerald and other mixed jade.
Polishing powder method. On the inner and outer surfaces of colorless or light-colored jadeite bracelets, more greenish polished powder remains to change the color of the bracelet itself. This method is used for emerald greens with more imitation oil. In the identification, special attention should be paid to jade bracelets with even colors and blue tones.
Challenge Coins
Challenge coins are a small, circular and flat object made out
of different types of metal. They can be made in silver, bronze, copper or
brass. They can be customized specifically for someone you love or can be produced in
masses and given to a graduating class or to a branch of the military. They are
meant to be carried around in your pocket and serve as a constant reminder of some special
event or group. They are intended to bring belonging and a sense of camaraderie
but serve many meaningful purposes beyond this.
By distributing your own custom challenge coins to your staff, you
build up an incredibly strong bond that money can`t buy, and one the military
has been using for decades. Every one of your employees or unit members will be thrilled
to receive such a beautiful keepsake.
Challenge coins are also a fantastic gift for clients,
suppliers, and award ceremonies. Your business depends not only on the loyalty
and team work of your employees, but on the trust of your clients and the efficiency of your
suppliers. Let those organizations know how valued they are without a great
financial cost to your business.
We are a 12 years' manufacturer of challenge coins, and can help you creat the coins you want professionally.
Item Name: Challenge Coins
Material Options: Zinc Alloy (mostly used), Aluminum Alloy,
Copper Alloy, Ferroalloy, Silver, Gold.
Size: Customized.
Accessory: N/A
Processes:
1) Firstly, you give us an existing sample, or send us the
artwork in vector formats, like .ai / .cdr / .eps
2) We do Molding / Tooling, accoring to your artwork
3) We do Die casting / Die Struck
4) We do Polishing
5) We do Plating colors, according to your artwork
6) We do Filling colors
7) We do Surface Protection: exposy or not
8) We do Packing.
9) We do Shipping to you, or to your customer.
Packing options:
poly bag, bubble bag, velvet bag, wood box, or other customized methods.
Production time:
5 to 7 days for samples; 5 to 10 days for mass production.
Price: us$0.5 to us$4.0 each
piece, depending on your design, quantity and requirements.
Payment Terms:
Western Union, Bank Wire, PayPal.
Shipping methods:
airfreight, seafreight, DHL / FedEX / UPS / TNT / Aramex door to door service.
Challenge Coins,Military Challenge Coin,Military Award Coins,Navy Challenge Coins
Dongguan Anna Artwares Co.,Ltd. , https://www.annaartware.com