What the karat number means
Pure gold is described as 24 karat. A 10K alloy contains 10 parts gold out of 24, 14K contains 14 parts and 18K contains 18 parts. The remaining portion is made from other metals selected to influence strength, colour and workability.
Because alloy recipes vary, two pieces with the same karat can show slightly different colour. Confirm both purity and intended colour—yellow, white or rose—when matching pieces across an order.
How purity affects a custom piece
10K is often chosen when durability and a lower gold cost are priorities. 14K balances gold content, wearability and price for many chains, pendants and bracelets. 18K has a higher gold content and richer colour, with a higher material cost and different wear characteristics.
The design still matters. A solid, well-engineered 10K piece can be more robust than a poorly constructed higher-karat piece. Wall thickness, joints, clasps, settings and total weight must be considered with purity.
Compare quotes using target weight
A quote should identify the purity and estimated finished metal weight. Without a weight target, it is difficult to compare two offers or understand whether a lower price comes from using less gold.
For stone-set jewellery, clarify whether the quoted finished weight includes stones and non-gold components. The final invoice or production record should use the same basis as the quotation.
- ◆10K: lower gold content and often selected for value and hardness
- ◆14K: a common balance for daily-wear custom jewellery
- ◆18K: higher gold content and a richer gold appearance
- ◆Always compare purity, construction and target weight together
Confirm hallmarking and finish
Ask how purity will be marked and what finish is included. White gold may use rhodium plating, while yellow and rose alloys depend on their alloy colour and polish. Future maintenance should be discussed for pieces intended for frequent wear.
Questions buyers ask
Is 18K always better than 14K?+
It contains more gold, but suitability depends on design, daily wear, desired colour and budget. Higher purity is not the only measure of construction quality.
Why do two 14K pieces have different colours?+
The non-gold alloy mix and finishing method can differ. Confirm the intended colour and match requirement before production.
Does a heavier piece always cost more?+
With the same purity and construction, more gold generally increases material cost. Stones, labour, complexity and finish also affect the quotation.
