We specialise in lustrous colours, strong, dense, precise and porosity-free precious metal castings, we manufacture our own master alloys to ensure we are can provide the highest quality to all of our clients.
Our high-end clients prioritise quality, precision, consistency, colour, and density over speed or price. We focus exclusively on a refined selection of precious metals and have created a range of in-house master alloys of the highest calibre. Years of research and in-house development have perfected these formulations, balancing base and precious metals to produce alloys that excel across the jewellery industry.
Once cast, our castings deliver:
Our castings resist blooming and tarnishing over time, curated with feedback from skilled bench jewellers and high-volume retailers across Australia. Photographs below showcase fully polished castings in a specialised photography booth, calibrated to present colours as accurately as possible under natural light.
Fine-Silver (999)
Ultra-Silver (925), W/Palladium
Sterling-Silver (925)
9 Karat (375) Premium White Gold, W/Palladium
10 Karat (417) Premium White Gold, W/Palladium
14 Karat (585) Premium White Gold, W/Palladium
18 Karat (750) Premium White Gold W/Palladium
9 Karat (375) Premium Rose Gold
10 Karat (417) Premium Rose Gold
14 Karat (585) Premium Rose Gold
18 Karat (750) Premium Rose Gold
22 Karat (916) Premium Rose Gold
9 Karat (375) Premium Yellow Gold
10 Karat (417) Premium Yellow Gold
14 Karat (585) Premium Yellow Gold
18 Karat (750) Premium Yellow Gold
22 Karat (916) Premium Yellow Gold
24 Karat (999)
Fine Gold
Our Premium White Golds in 9, 10, 14, and 18 karat are formulated with the perfect percentage of palladium through extensive in-house alloy development, producing a cooler, deeper and more neutrally grey-white tone while avoiding the green, yellow and brown hues commonly seen in lower-palladium white gold alloys. Our palladium blends have proven to be the optimal balance of colour, castability and mechanical bench performance.
Our Premium Rose Gold delivers a consistent, bright and elegant tone across 9, 10, 14, 18 and 22 karat alloys, creating a visually harmonious match between karats. This sophisticated champagne hue is highly desirable, combining beauty with superior workability. It is less prone to cracking than traditional pink and red gold, making it ideal for bench jewellers seeking precision, durability, and consistently stunning results.
Our Premium Yellow Gold, available in 9, 10, 14, 18 and 22 karat, delivers a rich, consistent radiant hue that is highly sought after in the Australian market. The differences between karats are subtle, often imperceptible without instrumentation. We’ve carefully refined this alloy to avoid washed-out dull tones or overly brassy/coppery tones, producing a yellow gold hue that is rich, vibrant, elegant, and true to the colour jewellers and clients desire.
FS999 is pure fine silver and when casted becomes 99.95% purity.
SS925 is 925 sterling silver, cost-effective precious metal we cast, treated with the same care, precision and accuracy that all our other precious metals receive.
US925 Bright and white, outperforming standard 925 sterling silver in both brilliance and finish. Enhanced with 5% palladium, it delivers:
At Hygrade Casting, quality comes first. Every process, decision, and investment is made to deliver exceptional castings with absolute consistency. We use modern, high-precision, state of the art casting technology with refined techniques honed under leading precious metal technicians from all over the world, no legacy methods, no short-cuts and no compromises.
We work with jewellers who demand flawless quality, from specialist workshops to high-volume retailers. Transparency, clear communication, and tailored production cycles ensure we build long-term partnerships, delivering precision, reliability, and finish that sets the standard in the industry.
We formulate and granulate our own master alloys in-house, using only the highest-purity precious metals from accredited Australian bullion companies and premium base metals from trusted local suppliers. Specialty metals, such as indium, are sourced directly from verified and accredited European suppliers. Every material is chosen to uphold precision, consistency, and uncompromising quality.
We never use Nickle, Tungsten, Rhenium, Lead, Gallium, Iridium, Cobalt, Tin, Brass, Steel, or Osmium in our metals. Every casting we produce embodies integrity, longevity, and performance, a standard our clients rely on without compromise.
By precisely controlling flask temperatures, casting pressures, and quenching times, we eliminate common defects such as porosity, scorching, and brittleness. Every step is optimised for perfection, producing clean, bright castings with tight grain structure and exceptional tensile strength without the brittleness.
All our castings are hypoallergenic and safe for wear on the external body (rings, earrings, pendants, and more) as we refuse to use base metals like nickel or gallium. Stone-set-in-wax casting is not offered as the risks and drop in quality outweigh the rewards.
