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Types of Jewelry Materials

Gold-Filled Jewelry:

  • Gold-filled jewelry is jewelry composed of a solid layer of gold (typically constituting at least 5% of the item's total weight) mechanically bonded to a base of some base metal. The gold content on gold-filled items is up 100 times thicker than gold plated jewelry. It will last for many years even with daily wear, and if taken care of properly it can last a lifetime. They are indistinguishable externally from solid gold but costs significantly less because of its base metal core. Although it is safe to get your gold-filled items wet, we would suggest you to avoid pools and hot tubs with your gold-filled jewelry on.

 Heavy Gold-Plated Jewelry:

  • Gold plated jewelry is jewelry composed of a thin layer of gold on the surface of another metal, by chemical or electrochemical plating. Regular gold-plated jewelry is at 7 millionth of an inch thick while heavy gold plating is at 100 millionth of an inch thick (2.5 micron - 14x thicker). Gold-plated jewelry should not be exposed to any kind of water.

 Sterling Silver:

  • Sterling Silver is an alloy of silver containing 92.5% pure silver and 7.5% other metals, usually copper. The reason sterling silver requires the mixture of other metals is because naturally, pure silver is soft. Adding other metals to the silver increases the hardness, making it more suitable and durable for use in jewelry. The only downfall of this beautiful metal is that it can tarnish, which is why it’s important to regularly clean and maintain sterling silver jewelry with polishers.

Payment Security:

All transactions submitted to us are encrypted with 128 SSL software which encrypts information you input to protect it from interception by outside parties. MIKUKUMI is committed to maintaining the highest levels of security and protection against fraud. We stay up-to-date with the latest in security technologies to ensure that your credit card information, contact information, and shipping/billing information are confidential and safe. 

Gift Wrapping and Packaging:

Each item is individually placed on our MIKUKUMI leather card & our cotton pouch.