Collection: Gold Bar Weight and Purity Comparison: 5 Gram to 1 Kilogram

Gold Bar Weight and Purity Comparison: 5 Gram to 1 Kilogram

Weight, Purity, and Premium: Three Separate Variables

Weight tells you how much metal a bar contains. Purity tells you what fraction is gold rather than alloy. Premium over spot tells you what you pay above raw commodity value for refining and fabrication. These move independently, and every bar in this collection carries .999 fine purity regardless of size. A 5 gram bar and a 1 kilogram bar are refined to identical purity. Only cost and premium per ounce change with size.

Gold Bar Sizes Compared

Why Fabrication Cost Drives the Premium Curve

Refining, casting, and certifying a bar cost roughly the same regardless of size. That fixed cost spreads across the bar's total weight, so a 5 gram bar carries a much higher premium per ounce than a 1 kilogram bar at identical purity. A buyer at the kilogram tier is not getting purer gold, just a lower fabrication cost per ounce.

LBMA Accreditation: What It Actually Covers

LBMA approved refiners meet the London Bullion Market Association's Good Delivery standards, historically applied to large 400 ounce bars used in institutional trading. When a small retail bar is described as coming from an LBMA approved refiner, that reflects the refiner's accreditation, not a Good Delivery designation on the small bar itself. This distinction matters when evaluating provenance claims.

Choosing a Size

• Lowest entry cost: 5 gram bar, same purity as every other size.
• Lowest premium per ounce: 10 ounce or 1 kilogram.
• Divisible allocation: 100 gram balances lower premium with practical size.
• First time ownership: 10 gram keeps cost low while tracking spot price meaningfully.

Frequently Asked Questions

What does .999 fine mean?

99.9 percent pure gold by weight, the investment grade standard.

Does bar size affect purity?

No. Every bar here carries .999 fine purity regardless of weight.

Why do larger bars cost less per ounce?

Fixed fabrication costs spread across more gold as bars get bigger.

Is a small LBMA-refiner bar a Good Delivery bar?

No. LBMA accreditation applies to the refiner, not a Good Delivery designation on small retail bars.

Why troy ounces instead of standard ounces?

Precious metals use troy ounces globally. One troy ounce equals about 31.1 grams, roughly 10 percent heavier than a standard ounce.

What comes with each purchase?

A certificate of authenticity confirming weight, purity, and refiner.