a gold owl
Maker Mends
56/3 Soi Sukhapiban 2,
Soi 31
Gemopolis Industrial Estate
Dokmai
Prawet Sub-District
Bangkok 10250, Thailand
Tel: +66 (0) 2727 0733/4
Email:

We can supply jewelry in any precious metal.
Metals
Gold Nugget
an example of a gold nugget
Silver Nugget
an example of a silver nugget
Platinum Sample
an example of a platinum nugget
Palladium Sample
an example of palladium

Titanium Sample
an example of titanium
Finishes
Satin example of a satin finish
Diamond
Cut

example of a diamond cut finish

Sandblast an example of sandblast finish
Rhodium
Plated
an example of rhodium plating
Matte example of a matte finish
High
Polish
an example of high polish
Gold, Silver, Platinum, Palladium and Titanium are precious metals, meaning they are rare metallic chemical elements of high economic value, shiny, hard, strong with high melting points. They form alloys (mixtures) with other metals and this makes them ideal for jewellery.
Gold(Au) - Gold is a highly sought-after rare metallic element. For many centuries gold has been used for money, jewellery and ornamentation symbolising wealth and prosperity. Like other precious metals, gold is measured by troy weight and by grams. When it is alloyed with other metals the term carat (or karat in the USA) is used to indicate the amount of gold present. Pure gold is twenty-four twenty-fourths (24/24ths) gold, and is called 24-carat gold. Gold that is 18-caret gold is eighteen twenty-fourths (18/24ths) gold and six twenty-fourths (6/24ths) other metals. Only 24-carat gold is 100% pure gold. Its chemical symbol, Au, is short for the Latin word for gold, "Aurum", which means "Glowing Dawn". Is a very soft metal when it is pure (24ct). It is often alloyed with other metals to make it harder though this lessens the value. Pure gold has an attractive bright yellow colour however when alloyed with other metals it can come in other colours. It is non reactive to air and water.
Silver(Ag) - Silver was once thought more precious than gold. It is a very soft metal and is often mixed with an alloy like copper. The term "Sterling Silver" probably originated in eastern Germany where they minted coins of .925 percent silver. When Britain sold cattle and grain to this area they were paid in "Easterling coins". These coins were found be be resilient and durable so King Henry II decided to adopt the standard .925 coins for Britain's own currency and set up a royal mint to produce silver coins. The term easterling silver was eventually shortened to sterling silver. To be sterling silver, the metal is made up of 92.5 percent silver and 7.5 percent copper. Silver has been used to make jewellery for many thousands of years. These days most silver is produced as a by-product of copper, gold, lead, and zinc mining. Silver tarnishes after exposure to air (a thin layer of silver oxide forms on the surface). The best way to deal with this is use silver dip or wipe with an impregnated cloth. We can also repolish any item to return it to its original condition.
Platinum (PT) - Platinum is more precious than gold, it is a very strong dense metal that never corrodes. In its pure form it is harder than gold and silver so for jewellery it is alloyed with 5% of other metals, usually Iridium (another even rarer metal in the platinum family) to make it more workable. Naturally-occurring platinum has been known for a long time. The metal was used by pre-Columbian Native Americans, the first European reference to platinum appears in 1557 in the writings Julius Caesar Scaliger as a description of a mysterious metal found in Central American mines. It is a rare greyish white metal, ten tons of ore have to be mind to produce a single ounce of platinum. The word platinum comes from the Spanish word platina, meaning "little silver." Platinum exists in relatively higher abundance on the Moon.
Palladium (Pd) - Palladium was discovered in 1803 and named after the asteroid Pallas. It is an element belonging to the platinum group of metals, Palladium is steel-white in colour, except in powder form, when it appears black. Palladium resists tarnishing in air and if annealed (a form of heat treatment) it is soft and ductile. Most palladium is used for catalytic converters in the automobile industry, it is also used in dentistry and now in jewellery due to its naturally white properties. It will develop a hazy patina over time and will discolour at soldering temperatures. Palladium becomes brittle with repeated heating and cooling. Palladium is one of three most used metals which can be alloyed with gold to produce white gold. Palladium-gold is a much more expensive alloy than nickel-gold but is hypoallergenic and holds its white colour better.
Titanium - Titanium is not a rare element, its the 9th most common element, accounting for 0.6 % of the earth's crust. The name titanium comes from the Titans of Greek mythology, known for their superior strength. It is a silvery white non ferrous metal with the highest strength to weight ratio of any known element, 85% of the structural components in the Space Shuttle are made of titanium. Titanium does not react to salt, water, sunlight or any body chemistry, has a diminished potential for causing an allergic reaction and is corrosion resistant. Titanium has become more popular for jewellery in recent years. Titanium cannot be repaired or soldered.
Assay - An assay is a test of the purity of an alloy. A tiny area of metal is scraped from the piece of jewellery and the percentage of gold or silver is determined, it is then given the appropriate Hallmark.
Plating - Plating is a process that coats a metal usually with a bright coloured plating changing the original appearance. It makes standard yellow gold chains change to a gleaming yellow or white metal to a mirror like finish with rhodium. All white gold contains a trace element of yellow gold and to compensate for this manufacturers plate the metal with rhodium (which is part of the platinum family of metals)which gives it a very strong white colour. This colour is more in keeping with the public perception that white gold is actually white rather than an alloy of yellow gold. Pieces of jewellery are put into chemical baths that have the various plating solutions in. An electronic current is passed through the plating solution which causes the plating to bond onto the metal. If the item has two different colours then we first have to mask off the metal that we do not wish to be plated leaving exposed the area that needs plating.
N.B.Gilding and Rhodium plating are the two most common types of finishing we carry out, these are only a very thin surface covering and will usually only last a limited period of time depending on wear and tear. Customers should be advised to take care to prolong the life of the plating.