14/10/2026
【鉑金、白金、白k金一樣嗎？它們有甚麼差別】
走進珠寶店挑婚戒或飾品時，是不是常被店員的「鉑金、白金、白K金」說得一頭霧水？🤔
其實它們的成分、價值、特性大不相同！今天一篇為你徹底解密，買珠寶不再踩雷👇
🌟 1. 什麼是「鉑金（Platinum）」？
俗稱：真正的「白金」其實就是鉑金！
標誌：常見 Pt950、Pt900（純度達 85% 以上才能稱為鉑金並打上 Pt 標記）。
天然特性：本身就是天然的純白色貴金屬，化學性質極其穩定，永不褪色、永不變色。
低敏親膚：純度高達 90%～95%，不含雜質金屬，非常適合敏感肌佩戴。
貴金屬之王：稀有度極高！一盎司鉑金需要從 10 噸礦石中歷經 5 個月才能提煉出來。
💛 2. 甚麼是「白K金（18K White Gold）」？
本質：主要成分是「黃金」，不是天然白色的！
成份標誌：標記為 18K、750 或 750G（代表含 75% 黃金 + 25% 銀/鎳/銅/鋅等白色合金）。
硬度更高：因為加入了其他金屬，硬度比純鉑金高，鑲嵌鑽石與寶石時抓力更牢固。
款式多元：延展性佳且支撐力強，能做出更複雜、精緻立體的珠寶設計與色彩層次。
🔍 4 個核心維度，快速辨別差異：
❶成分與本質
鉑金（Pt）：獨立化學元素（Platinum），純度通常達 90%~95%。
白K金（Au）：黃金與其他金屬的合金（Gold），黃金純度通常為 75%。
❷稀有度與產量
鉑金比黃金稀有約 35 倍！全球每年僅開採約 88 噸鉑金用於飾品，而黃金則高達 2,700 噸。
❸純淨度與保色度
鉑金純淨度極高，天生純白且永不褪色，最能襯托出鑽石的原貌光芒。
白K金長期佩戴或接觸化學品後，表層鍍層可能磨損，略微顯露底層黃金的微淡黃色（需重新電鍍拋光保養）。
❹持久度與刮痕磨損
鉑金密度極高，即使表面產生劃痕，通常只是金屬被推移、並不會磨損減少體積，經合格珠寶商拋光即可恢復如初。
白K金/黃金刮傷時則可能磨損金屬微量體積。
💡總結：我該怎麼選？
👉追求天然純淨、極致抗敏、象徵永恆不變、預算充足：選【鉑金 Pt】！
👉追求精緻繁複設計、堅固抓鑽、高CP值與款式多樣：選 【18K 白金】！
你手上的戒指是哪一種材質呢？留言跟我們分享吧！✨
別忘了按贊、收藏，下次挑戒指拿出來核對不被話術牽著走～
#珠寶小知識 #鉑金 #白金 #珠寶保養 #珠寶指南
Are Platinum, White Gold, and White K-Gold the same thing? What’s the actual difference? 🤔
When shopping for wedding rings or fine jewelry, do terms like "Platinum," "White Gold," and "White K-Gold" leave you feeling totally confused?
Despite looking similar at first glance, their composition, value, and properties are completely different! Here is your complete guide so you can buy with confidence 👇
🌟 1. What is Platinum?
AKA: True "White Gold" in terms of naturally white precious metals!
Markings: Look for Pt950 or Pt900 (must contain at least 85% purity to be stamped with Pt).
Natural Properties: Naturally pure white and extremely stable. It will never fade or tarnish.
Hypoallergenic: With high purity (90%–95%), it contains minimal reactive base me…
Are Platinum, White Gold, and White K-Gold the same thing? What’s the actual difference? 🤔
When shopping for wedding rings or fine jewelry, do terms like "Platinum," "White Gold," and "White K-Gold" leave you feeling totally confused?
Despite looking similar at first glance, their composition, value, and properties are completely different! Here is your complete guide so you can buy with confidence 👇
🌟 1. What is Platinum?
AKA: True "White Gold" in terms of naturally white precious metals!
Markings: Look for Pt950 or Pt900 (must contain at least 85% purity to be stamped with Pt).
Natural Properties: Naturally pure white and extremely stable. It will never fade or tarnish.
Hypoallergenic: With high purity (90%–95%), it contains minimal reactive base metals, making it perfect for sensitive skin.
The King of Metals: Exceptionally rare! It takes 10 tons of ore and over 5 months to refine just one ounce of platinum.
💛 2. What is 18K White Gold?
The Truth: Its main component is actual Gold—it is not naturally white!
Markings: Look for 18K, 750, or 750G (75% pure gold + 25% white alloys like silver, copper, or zinc).
Higher Hardness: The added alloys make it harder than pure platinum, providing a superior, secure grip for diamond and gemstone settings.
Versatile Designs: Excellent durability and malleability allow for intricate, 3D, and sophisticated jewelry designs.
🔍 4 Key Differences at a Glance:
❶ Composition & Essence
Platinum (Pt): An independent chemical element; purity usually ranges from 90%–95%.
White K-Gold (Au): A gold alloy; contains 75% pure gold mixed with other metals.
❷ Rarity & Supply
Platinum is roughly 35 times rarer than gold! Only about 88 tons of platinum are mined annually for jewelry, compared to around 2,700 tons of gold.
❸ Purity & Color Retention
Platinum is naturally white and will never discolor, effortlessly enhancing the brilliant sparkle of diamonds.
18K White Gold is rhodium-plated to achieve its ultra-white finish. Over time, friction or chemicals may wear down the plating, revealing a subtle warm undertone (easily refreshed with re-plating and polishing).
❹ Durability & Wear
Platinum is remarkably dense. Scratches merely displace the metal rather than wearing it away, meaning no volume is lost and it can be restored with polishing.
White K-Gold, like pure gold, may lose minute traces of volume over years of heavy wear and friction.
💡 Summary: Which should you choose?
👉 Choose Platinum (Pt) if you value natural purity, hypoallergenic comfort, symbolic eternity, and have a flexible budget.
👉 Choose 18K White Gold if you love intricate craftsmanship, secure diamond settings, diverse style options, and high cost-performance value!
Which metal is your ring made of? Tell us in the comments! ✨
Don't forget to Like & Save this post for your next jewelry shopping trip!
