Jewellery School

Bevilles Jewellery School 101 is your guide to diamonds, gemstones, and precious metals.

Close-up of a hand wearing a gold ring on a neutral background

GOLD JEWELLERY

Gold is the most iconic jewellery metal, valued for its natural beauty, rarity, and history in trade and culture for thousands of years. It is resistant to rust, tarnish, and corrosion, but is naturally soft—so it is always mixed with other metals for strength.

Gold Properties

  • Very malleable (can be shaped easily)
  • Resistant to tarnish and corrosion
  • Highly valuable and globally traded
  • Soft in pure form, so it is alloyed for jewellery use

Gold Purity (Carats/Karats)

  • 24kt – 100% pure gold (too soft for jewellery)
  • 18kt – 75% gold (luxury standard, durable)
  • 14kt – 58.5% gold (stronger, more durable)
  • 9kt – ~30–40% gold (most affordable solid gold option)

Gold Colours

  • Yellow Gold – The most traditional gold colour, reflecting gold in its natural form.
  • White Gold – White gold is made by blending yellow gold with white metals and finishing it with rhodium plating.
  • Rose Gold – Rose gold gets its pink tone from copper in the alloy.
EXPLORE GOLD JEWELLERY
Silver hoop earring worn by a person with hair partially covering the ear.

SILVER JEWELLERY

Silver is a precious metal that has been valued for thousands of years in trade, art, and culture. It is soft and malleable like gold, so it is usually strengthened with alloys.

  • Bright, reflective shine
  • More abundant and affordable than gold
  • Can tarnish or oxidise over time
  • Requires occasional cleaning and polishing

Silver also has historical and modern importance, from early currency systems to use in technology, medicine, and water purification.

Sterling Silver

The most common silver used in jewellery. “925” = sterling silver quality stamp = 92.5% real silver.

  • 92.5% silver + 7.5% other metals (usually copper)
  • Stronger and more durable than pure silver
  • Affordable and widely available
  • Resistant to everyday wear with proper care
EXPLORE SILVER JEWELLERY
Person adjusting a chain necklace on a plain background

MODERN METALS: STAINLESS STEEL, TUNGSTEN & TITANIUM

Stainless Steel

Stainless steel is a highly durable alloy made from iron, carbon, and chromium.

Key Properties:

  • Extremely resistant to rust, corrosion, and scratches
  • Low maintenance and long-lasting
  • Can be polished to a mirror-like shine
  • Hypoallergenic

Jewellery Appeal:

  • Looks similar to silver or white gold
  • Available in silver, black, gold, and rose tones
  • Strong, practical, and affordable

Tungsten

One of the hardest metals used in jewellery.

  • Extremely scratch-resistant
  • Heavy and solid feel
  • Available in black, grey, and white finishes
  • Difficult to resize due to hardness

Titanium

  • Lightweight but very strong
  • Highly corrosion-resistant
Comparison chart of gold plating types on a white background

BONDED & PLATED FINISHES

Bonded Gold

9kt Bonded Gold, also called gold-filled, infused silver, or silver-filled gold, features a thick layer of genuine 9kt gold permanently fused to a 925 sterling silver core using heat and pressure.

  • As durable as 9kt gold
  • Stronger and longer-lasting than standard plating
  • Affordable way to wear larger statement pieces

Gold Plating

18kt Fine Gold Plated Jewellery (Micron Plating) features multiple layers of real 18kt gold applied over a base of 925 sterling silver.

  • Thin layer of gold over a base metal
  • Gives the appearance of solid gold at a lower price

Platinum Plating

  • Thin coating of platinum over a base metal
  • Bright, premium silver-white appearance
  • Improves surface durability and shine
  • Not the same as solid platinum

Rhodium Plating

  • Bright, mirror-like white finish
  • Enhances shine and scratch resistance
  • Needs reapplication over time