If you’re a summer-loving sister, check out these beautiful coloured gemstones and diamonds that would be perfect to ring in summer.

Yellow Diamonds

Yellow diamonds were rarely seen until their discovery in South Africa in the late 1860s. Yellow diamonds are less common than the colourless diamonds, but are far more common than blue, pink, and red diamonds.

Yellow diamonds come in a variety of shades and are graded in order from; fancy light, fancy, fancy intense and fancy vivid being the most opaque in colour. If you’re in the market for an engagement ring and don’t want to go for a typical white diamond, try yellow diamonds. They’re also a fantastic investment piece.


Cognacs, also know as brown diamonds were typically considered good only for industrial use until the 1980s, when abundant quantities of them began to appear in the production of the Argyle mines. In Australia, we gave them names like “cognac” and “champagne” and they are very popular alternatives to diamonds for engagement rings and dress rings.

Yellow Sapphires

Happy, bright, and beautiful, yellow sapphires sparkle from every angle and come in a variety of shades. Sapphires have an extremely high refractive rate, meaning they’re extremely sparkly. Perfect for your engagement or dress ring.

  • Mineral: Corundum
  • Chemistry: Al2O3
  • Color: Every color but red
  • Refractive index: 1.762 to 1.770
  • Birefringence: 0.008 to 0.010
  • Specific gravity: 4.00
  • Mohs Hardness: 9

These stones channel the cheeriness of a sunny day; it’s impossible not to smile when you see a yellow sapphire.