Glossary
A curated directory of terminologies for the discerning collector.
Metals & Materials
Alloy
An alloy is a blend of metals created to improve durability, colour, or workability. For example, gold is often alloyed with silver, copper, or zinc to create different tones—yellow, white, or rose—and to strengthen it for everyday wear.
Carat (Gold Purity)
When referring to gold, carat measures purity, not weight. 24ct is pure gold, while 18ct is 75% gold mixed with alloy metals. At Kate & Kole, we work with 9ct and 18ct gold, choosing the best alloy for each design to balance beauty and strength.
Stone Shapes
Round Brilliant
The most classic and popular diamond shape, known for its unmatched sparkle. With 58 facets, the round brilliant is designed to maximise light and fire—perfect for timeless solitaires and pavé settings.
Oval
An elongated version of the round brilliant, the oval shape creates a flattering, finger-lengthening effect. It offers similar brilliance to a round but with a softer, modern silhouette—one of our most loved shapes.
Emerald
Characterised by its step-cut facets and open, mirrored table, the emerald cut offers a clean, architectural look. It’s less about sparkle and more about clarity and refinement—understated luxury at its best.
Diamonds & Gemstones
Carat (Diamond Weight)
When used in reference to diamonds and gemstones, carat is a unit of weight, not size. One carat equals 0.2 grams. While carat affects the visual impact of a stone, it’s just one of the 4Cs to consider when selecting a diamond.
Cut
Cut refers to how well a diamond or gemstone has been shaped and faceted—not just its shape (like round or oval), but the quality of the angles, proportions and polish. A well-cut stone will reflect light beautifully and appear more brilliant.
Colour
For diamonds, colour is graded on a scale from D (colourless) to Z (noticeably tinted). At Kate & Kole, we work with premium stones typically graded D–F, which appear icy white and luminous.
Clarity
Clarity refers to the presence (or absence) of internal marks (inclusions) or surface flaws (blemishes) in a diamond. Most are invisible to the naked eye. We favour stones graded VS (Very Slightly Included) or higher for a clean, bright finish.
