GUIDES

Diamond Choices

Diamonds are the most magical treat, available from Goldman customers in more affordable options than ever.

An Authentic Sparkle

We want you find the perfect diamond for your engagement, wedding, anniversary, or self-purchase celebration.

New diamonds from Goldman are of excellent quality, purchased by us from trusted, socially conscious suppliers. Here are the types of diamonds available at our shops to help you decide.

Also Diamond Shapes

  • Natural Diamonds

    Ultimate indulgence
    Natural (or mined) diamonds are one of Earth's oldest materials, formed under extreme heat and pressure over millions of years. Surfacing in rare volcanic eruptions, they are of limited supply. Extraction is highly intensive with a large carbon footprint.

    Price factors
    • The high price reflected in their rarity.

    Grading
    The 4Cs GIA world standard (since 1953).
    • Cut – shape and brilliance
    • Colour – varying degrees of hue
    • Clarity – gauge of perfection purity
    • Carat – measure of weight

  • Lab-grown diamonds

    Identical alternative
    Lab-grown (or man-made/cultured) diamonds are chemically and optically identical to natural diamonds. Created in a lab replicating nature’s process, with fewer imperfections. Certified as real diamonds, they bypass adverse mining for increasingly energy-efficient methods.

    Price factors
    • Often 50% of a comparable natural stone
    • Decreasing with advancing technology
    • Rarity is not an issue, nor cost factor
    • Lower long-term resale value

    Grading
    • Premium and Standard (since 2025).

  • Pre-owned diamonds

    Ethical elegance
    Previously owned diamond jewellery is sold to our shops by customers, to be further enjoyed by others. Choosing pre-owned means previous manufacture, a popular choice for those conscious of the environment.

    Price factors
    • Generally the more affordable option
    • Ideal for saving cost on event plans, such as an engagement or wedding.

    Our speciality
    Goldman are experts in diamonds. We encourage our customers to trade in their pre-loved items, for a new lease of life.

    Buying Service