If you’ve ever noticed the number “750” stamped on your jewelry, you’re looking at a hallmark that reveals the gold’s purity. Simply put, a 750 gold mark means the piece is made of 18-karat gold - a luxurious blend of 75% pure gold and 25% alloy metals like copper, silver, or palladium.
This mark is more than just a number. It confirms authenticity, influences the value of your jewelry, and helps you understand what you’re investing in when buying fine gold pieces.
Understanding 750 Gold
The “750” hallmark equals 18k gold, one of the most popular standards for high-end jewelry. With 75% pure gold, it offers:
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Rich, warm color prized by jewelry collectors.
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Durability for everyday wear thanks to added alloy metals.
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Luxury value since it’s considered premium compared to 14k or 10k gold.
You’ll commonly find the 750 mark on rings, necklaces, and bracelets, often stamped inside the band or clasp. This ensures you’re getting genuine 18k gold jewelry.
Gold Purity Explained
Gold is measured in karats, with 24k being pure gold. But pure gold is soft and not always practical for jewelry. That’s why jewelers mix gold with alloys to strike the perfect balance between beauty and durability.
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24K Gold (999): Pure gold, but too soft for daily wear.
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18K Gold (750): 75% gold, a luxurious balance of strength and purity.
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14K Gold (585): 58.5% gold, more durable, but less rich in color.
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10K Gold (417): Affordable and tough, but with less gold content.
Knowing these purity levels helps you shop smarter and avoid overpaying.
The Hallmarking Process
Hallmarks like “750” aren’t just decorative - they’re certificates of authenticity. Jewelry must pass testing at authorized assay offices before receiving its official purity stamp.
For example, a “AU 750” stamp guarantees the jewelry contains 750 parts pure gold out of 1000. Some countries even require hallmarking by law to protect buyers.
International Hallmark Variations
While “750” is universal for 18k gold, hallmarking symbols vary:
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UK: Includes a date letter and sponsor’s mark alongside the purity stamp.
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Europe: Often uses just the number (e.g., 750).
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Asia: Some regions use different placements or styles for stamps.
If you shop internationally, knowing these differences ensures you recognize genuine 18k gold.
Gold Alloys: More Than Just Yellow
The 25% alloy in 18k gold influences both strength and color. That’s why 750 gold comes in multiple shades:
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Yellow Gold: Classic mix with silver and copper.
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White Gold: Blended with palladium or nickel, often rhodium-plated.
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Rose Gold: Infused with more copper for a romantic pink tone.
This flexibility makes 750 gold ideal for designers, balancing luxury and practicality.
Types of Gold Jewelry
When browsing jewelry, you’ll find several variations beyond just 750 gold:
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18K (750) Gold: Fine, durable, and valuable - ideal for engagement rings and heirlooms.
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Gold-Plated: A thin layer of gold over base metal - affordable, but less durable.
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Gold-Filled: Thicker than plating, longer-lasting, and more valuable.
Each has its place depending on your budget and style preferences.
Buying 750 Gold Jewelry
When investing in fine jewelry, always check for:
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The hallmark stamp (look for “750”).
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Certification from a trusted jeweler.
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Color and weight, as real gold feels denser than fakes.
Also consider current gold market prices, since purity directly impacts value.
FAQs About 750 Gold
How can I spot fake 750 gold stamps?
Look for uneven, shallow, or sloppy stamps - these may indicate fakes. Real gold won’t be magnetic, so a simple magnet test helps. For certainty, get an appraisal.
What does a “750” mark on a ring or necklace mean?
It means the jewelry is 18k gold, made of 75% pure gold blended with alloys for durability and beauty.
Is 750 gold more valuable than 585 gold?
Yes. 750 gold (18k) has more pure gold than 585 gold (14k), giving it a richer color and higher value.
What is 750 white gold?
It’s 18k gold mixed with white alloys like palladium or nickel, usually plated with rhodium for extra shine.
Does 750 always equal 18K gold?
Yes. Worldwide, a “750” hallmark always means 18 karats or 75% pure gold.
Final Thoughts
When you see 750 stamped on jewelry, you’re looking at 18-karat gold - a mark of luxury, authenticity, and lasting value. Understanding gold purity marks helps you buy with confidence, avoid fakes, and appreciate the craftsmanship behind your pieces.
