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K gold is a precious metal material formed by alloying gold with other metals. It is typically denoted by K (Karat) to indicate the gold content, such as 14K, 18K, etc. These numbers represent the percentage of gold content, with higher numbers indicating a higher proportion of gold.
・Durability and Strength: K gold is stronger and more durable compared to pure gold, and it is less prone to tarnishing than electroplated gold. It is suitable for everyday wear in jewelry and gemstone settings, maintaining its shape and beauty for a longer period of time.
・Color Options: K gold can be alloyed with other metals to change its color, such as white gold, rose gold, etc., catering to different personalities and preferences.
【All K gold products purchased at C.H. come with warranty and lifetime maintenance service.】
🔹 18K Gold is the Highest Purity of K Gold
18K gold has the highest gold content in the K gold series (75%) and is typically marked with "750". Therefore, it holds greater value compared to other K golds and is primarily used in mid-to-high-end jewelry.
🔹 Ideal for Diamond Settings
With its high gold content, 18K gold is stable in value and has high asset worth. It is especially suitable for setting natural diamonds and is widely used in luxury jewelry designs.
🔹 Durable and Suitable for Lifetime Wear
18K gold is highly durable and resistant to tarnishing. With proper care, it can be worn for a lifetime, making it a valuable material for collectible pieces.
🔹 A Balanced Combination of Shine, Hardness, and Price
14K gold is a material that offers a beautiful shine, durability, and excellent cost performance. It is marked with "585" and the visual difference from 18K gold is nearly indistinguishable to the naked eye.
🔹 Ideal for Everyday Wear
14K gold is highly durable and resistant to scratches and deformation, making it perfect for jewelry worn daily.
🔹 Low Maintenance, Wearable While Showering
14K gold is resistant to tarnishing without requiring special care and retains its original shine for a long time. It can be worn while showering, allowing you to enjoy your jewelry without hassle.
Platinum (Pt) is a precious metal that naturally presents a pure, luminous white color.
Exceptionally stable and high in density, it is regarded as one of the finest metals to symbolize eternity and unwavering commitment.
🔹 Rarity & Stability
Platinum is exceptionally rare—its annual global production is only about one-tenth that of gold.
With a high melting point of 1,768°C, it is difficult to work with, making it highly valued in fine jewelry.
Naturally stable and resistant to oxidation, platinum maintains its luster and refined texture even with long-term wear.
🔹 Natural White & Durability
Platinum is the only precious metal that is naturally pure white, requiring no plating to achieve its bright, elegant sheen.
Its high density and strength make it remarkably durable, ideal for everyday wear.
Especially suited for setting diamonds and precious gemstones, platinum is often associated with eternity and lasting commitment.
🔹 Confidence for Everyday Wear
Highly resistant to corrosion and discoloration, platinum can even withstand hot spring environments.
For this reason, it is a popular choice for wedding rings in Japan—designed to be worn every day without concern for fading or excessive wear, offering true peace of mind for a lifetime.