Gold Purity Explained

Your Ultimate Guide to Understanding Karat, Hallmarks, and Choosing the Right Gold Jewelry

Gold jewelry has been cherished for centuries, symbolizing luxury, love, and tradition. Yet, one of the most common questions both first-time buyers and seasoned collectors ask is: “What exactly does gold purity mean?” Whether you’re shopping for an engagement ring or investing in a gold chain, understanding gold purity (often expressed in karats) is essential. In this comprehensive guide, we break down everything you need to know about gold purity, how to read hallmarks, and which karat level suits your lifestyle.

1. What Is Gold Purity?

  • Definition: Gold purity refers to the proportion of pure gold present in an alloy. Pure gold is too soft for everyday wear, so jewelers mix it with other metals (copper, silver, zinc) for strength and color variation.
  • Measurement: Purity is quantified in karats (K) or parts per thousand. A 24-karat (24K) gold item is 99.9% pure gold, whereas 18K gold is 75% gold and 25% other metals.

Why It Matters:

  • Durability: Higher karats (22K, 24K) are softer and more prone to scratches. Lower karats (14K, 18K) balance durability with rich color.
  • Value: Pure gold (24K) carries the highest intrinsic value per gram. As karat decreases, the price per gram drops proportionally.

2. The Karat System: 24K, 22K, 18K, 14K, and 10K

Karat RatingGold Content (%)Common UsesColor & Properties
24K99.9%Investment-grade bars, coins, traditional jewelry (especially in Nepal/India)Vivid yellow, very soft, high luster
22K91.7%Bridal jewelry, traditional necklaces, banglesDeep gold color, slightly more durable than 24K
18K75%Fine jewelry (rings, pendants), high-end watchesRich golden hue, good balance of strength and color
14K58.3%Daily-wear rings, bracelets, earringsSlightly paler yellow, very durable
10K41.7%Fashion jewelry, budget-friendly piecesLight yellow, very hard, least expensive

3. Gold Purity Percentages & Visual Differences

  • 24K Gold (99.9% Pure)
    • Appearance: Vivid, deep yellow. Often described as “buttery.”
    • Use Cases: Investment bars, coins, certain cultural ornaments (e.g., Nepali tika, traditional bridal sets).
    • Pros: Maximum intrinsic value; excellent for heirloom pieces.
    • Cons: Very soft—scratches and dents easily; not ideal for everyday jewelry.
  • 22K Gold (91.7% Pure)
    • Appearance: Slightly less intense yellow than 24K, but still rich.
    • Use Cases: Traditional wedding jewelry, high-quality necklaces, and bangles.
    • Pros: Still very valuable; more durable than 24K.
    • Cons: Soft enough to bend under heavy wear; thickness is usually larger.
  • 18K Gold (75% Pure)
    • Appearance: Golden-yellow with a slightly lighter tone.
    • Use Cases: Engagement rings, wedding bands, designer jewelry at Rashova Diamonds.
    • Pros: Balanced hardness, ideal color, and high value.
    • Cons: Higher price point; can still scratch with rough use.
  • 14K Gold (58.3% Pure)
    • Appearance: Pale yellow—noticeably less “rich” than 18K.
    • Use Cases: Everyday rings, bracelets, men’s jewelry.
    • Pros: Very durable; affordable.
    • Cons: Lower intrinsic value; alloy metals may cause mild skin reactions for extremely sensitive individuals.
  • 10K Gold (41.7% Pure)
    • Appearance: Light yellow or almost pale (depending on alloy mix).
    • Use Cases: Fashion jewelry, men’s chains, low-budget pieces.
    • Pros: Most durable; lowest cost.
    • Cons: Contains a high percentage of alloys; not considered “fine jewelry” in many regions.

4. Reading Hallmarks & Stamps

Every genuine gold piece should bear a hallmark or stamp indicating its purity. Knowing how to interpret these marks helps you avoid counterfeit or low-quality items.

  • Common Stamps:
    • “24K,” “22K,” “18K,” “14K,” “10K” (karat marks)
    • “999,” “916,” “750,” “585,” “417” (parts per thousand)
  • Example:
    • A 22K ring may be stamped “22K” or “916.”
    • An 18K chain often shows “18K” or “750.”
  • Location on Jewelry:
    • Rings: Inside the band.
    • Necklaces/Bracelets: Near the clasp or on the clasp itself.
    • Earrings: Post or back plate.

Tip: Always check for a certified hallmark or an authenticated assay by a recognized authority (e.g., BIS in India, BIS in Nepal).

5. Pros and Cons of Different Karats

KaratProsCons
24KMaximum investment value; vibrant colorToo soft for daily wear; high price
22KTraditional look; still high valueProne to bending; thickness often larger
18KBalanced color & durability; luxury feelSlightly pricier; scratches possible
14KVery durable; more affordable; great for daily wearPaler color; lower resale value
10KMost durable; least expensiveHigh alloy percentage; light color; not “fine” gold

6. How to Choose the Right Karat for Jewelry

Purpose & Frequency of Use

  • Everyday Wear: 14K or 18K. These have enough strength to resist scratches and dents.
  • Investment or Heirloom: 22K or 24K—prioritize purity over durability.
  • Traditional Ceremonial Pieces: 22K is preferred in Nepal for bridal sets, cultural events.

Budget Considerations

  • Limited Budget: 10K–14K offers affordability while still looking like gold.
  • Mid-Range Budget: 18K balances luxury aesthetics with reasonable price.
  • High-End Budget: 22K or 24K confers maximum prestige.

Skin Sensitivity

  • High-karat gold (18K+) has fewer alloys, reducing allergic reactions.
  • If you have metal allergies, avoid 10K or 14K, as they contain more nickel, copper, or other alloys.

Design & Aesthetic

  • Deep Yellow: Choose 22K or 24K for a classic yellow hue.
  • Soft Yellow: 18K has a slightly softer yellow, ideal for modern designs.
  • Subtle Hues: 14K or 10K may appear almost white or rose if alloyed with palladium or copper.

Care Tips Based on Gold Purity

  • 24K & 22K Gold
    • Store separately in a soft pouch to avoid scratches.
    • Avoid wearing during heavy manual tasks.
    • Clean gently with a soft toothbrush and mild detergent.
  • 18K & 14K Gold
    • More forgiving, but still: remove jewelry before sports, gardening, or heavy lifting.
    • Wipe with a clean, soft cloth after each wear to remove oils, sweat, and chemicals.
  • 10K Gold
    • Extremely hard, but still: avoid exposure to strong chemicals (chlorine can discolor).
    • Use a polishing cloth monthly to maintain shine.

General Tips:

  • Avoid Harsh Chemicals: Perfumes, lotions, and household cleaners can dull gold.
  • Professional Cleaning: At least once a year, have your most valuable pieces inspected and cleaned by a jeweler.

8. Why Rashova Diamonds Recommends Specific Karats

At Rashova Diamonds, we specialize in crafting jewelry that reflects Nepal’s rich heritage while meeting international quality standards. Our top recommendations:

  • 22K Bridal Sets: Traditional craftsmanship with 91.7% pure gold—perfect for weddings and cultural ceremonies.
  • 18K Signature Collections: Modern, sleek designs for engagement rings and necklaces. The 75% purity offers brilliant shine and lasting durability.
  • 14K Everyday Wear: Ideal for daily-use rings, pendants, and bracelets. Budget-friendly without compromising elegance.

All our pieces are hallmarked and come with a certificate of authenticity. Every purchase includes a complimentary care guide, ensuring your gold maintains its luster for generations.


Frequently Asked Questions

Is 24K gold better than 18K?

24K is the purest form of gold (99.9%) and holds maximum investment value. However, it’s very soft and prone to scratches. 18K (75% gold) strikes a balance between purity, durability, and price—making it ideal for fine jewelry.

Why is 22K more popular in Nepal?

Nepalese culture values traditional simplicity and auspiciousness. 22K (91.7% gold) provides a deep yellow hue that aligns with cultural aesthetics while still being reasonably durable for ceremonial wear.

How can I tell if a piece is real 22K or 18K gold?

Look for a certified hallmark or assay stamp (e.g., “22K” or “916” for 22K; “18K” or “750” for 18K). Rashova Diamonds guarantees BIS-approved hallmarks and provides a certificate of authenticity with every purchase.

Does higher karat mean better jewelry quality?

Not necessarily. Higher karat means higher gold content, but jewelry quality also depends on craftsmanship, design, and finishing. An 18K piece from Rashova Diamonds can be more beautifully finished than a poorly made 22K item.


Understanding gold purity is crucial when investing in jewelry or purchasing a meaningful gift. From the vivid yellow of 24K to the everyday practicality of 14K, each karat serves a distinct purpose. At Rashova Diamonds, we guide you through selecting the perfect gold purity—whether it’s a family heirloom of 22K bridal jewelry or a modern 18K engagement ring.

By choosing the right karat, reading hallmarks, and caring for your gold properly, you ensure your piece not only looks stunning but also retains its value. Explore our curated collections today and let Rashova Diamonds help you find the gold that’s truly meant for you.