Choosing the Right Metal for Your Jewelry: Gold Purity, Colors, and Benefits

Whether you're designing a custom engagement ring or picking your next signature piece, choosing the right metal is just as important as selecting the perfect stone. At Diamonds on Baylis, we believe the metal should suit not only your style—but your lifestyle too. From the timeless elegance of yellow gold to the modern brilliance of platinum, each metal we use brings unique qualities to your jewellery.

In this guide, we’ll walk you through the most popular metals we work with—sterling silver, white gold, platinum, rose gold, and yellow gold—explaining their purities, tones, durability, and what makes each one shine.

Quick Comparison: Which Metal Is Right for You?

Sterling Silver
Purity: 92.5% silver
Tone: Bright white
Durability: Moderate
Best For: Affordable daily wear, modern and classic styles

White Gold
Purity: 9k (37.5%) or 18k (75%) pure gold
Tone: Silvery white (cooler in 9k, warmer in 18k)
Durability: High in 9k, Medium in 18k
Best For: Contemporary styles, durable everyday wear

Platinum
Purity: 95% platinum
Tone: Naturally white
Durability: Very high
Best For: Luxury lovers, sensitive skin, heirloom-quality pieces

Rose Gold
Purity: 9k (37.5%) or 18k (75%) pure gold (alloy mostly copper)
Tone: Pinkish (stronger pink in 9k, softer rose in 18k)
Durability: High in 9k, Medium in 18k
Best For: Romantic or vintage-inspired designs

Yellow Gold
Purity: 9k (37.5%) or 18k (75%) pure gold (alloy copper & silver)
Tone: Lighter yellow in 9k, richer in 18k
Durability: High in 9k, Medium in 18k
Best For: Traditional, timeless jewellery styles

Sterling Silver

Purity: 92.5% silver mixed with 7.5% copper or other alloys
Tone: Bright white
Durability: Moderate; can scratch and tarnish over time
Best For: Affordable daily wear, modern or classic styles
Consideration: Requires occasional polishing to remove tarnish

White Gold

Purity: Available in 9k (37.5%) and 18k (75%) gold
Tone: Silvery white (cooler in 9k, warmer in 18k)
Durability: 9k is harder and more resistant to wear; 18k has a softer, more luxurious feel
Best For: Contemporary looks, engagement rings, versatile styling
Considerations:
 – Typically requires rhodium plating to maintain its bright finish; this wears off over time and may need reapplication
 – Some suppliers may use nickel as an alloy, which can cause allergic reactions; at Diamonds on Baylis, we never use nickel in our white gold, ensuring it is hypoallergenic and safe for sensitive skin

Platinum

Purity: 95% platinum mixed with 5% other metals (often ruthenium or iridium)
Tone: Natural white
Durability: Very high—dense and wear-resistant
Best For: Heirloom pieces, sensitive skin, luxury lovers
Consideration: Heavier and more expensive than gold alloys

Rose Gold

Purity: Available in 9k (37.5%) and 18k (75%) gold
Tone: Pinkish hue (stronger in 9k, softer and warmer in 18k)
Durability: 9k is harder and suitable for daily wear; 18k is softer but more radiant
Best For: Romantic, vintage-inspired designs
Consideration: High copper content gives strength but may oxidise slightly over time, creating a deeper patina

Yellow Gold

Purity: Available in 9k (37.5%) and 18k (75%) gold
Tone: Pale yellow in 9k; rich golden hue in 18k
Durability: 9k is harder and suited for daily wear; 18k is softer but prized for its premium colour
Best For: Classic, timeless styles
Consideration: Like all high-purity gold, 18k is softer and may show scratches more readily with heavy wear

Why Choose Diamonds on Baylis?

At Diamonds on Baylis, we understand that the metal you choose is just as meaningful as the stone you wear. That’s why we offer a thoughtful selection of premium alloys to suit your taste, lifestyle, and budget.

Whether you prefer the cool elegance of platinum or the romantic warmth of rose gold, our experienced team will guide you through every option. Each piece is handcrafted with care and precision, ensuring that your jewellery not only looks beautiful but feels right for you.

Visit us in-store or explore our custom services to find (or create!) a piece that reflects your style and tells your story—one timeless metal at a time.

Visit Us or Start Your Custom Piece Today

Let us help you design something that reflects your personality, lifestyle, and story. Explore our in-store collections or get in touch to book a personalised consultation.

Want to make sure your jewellery stays as brilliant as the day it was made? Don’t miss our Jewellery Care Guide for expert tips on cleaning, storing, and protecting your favourite pieces.

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Ring Resizing: When, Why, and How We Do It

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Understanding the 4 Cs of Diamonds: Your Guide to Choosing the Perfect Stone