Master artisan meticulously hand-setting a diamond ring in the Opal Ivory Leon workshop

Materials & Craftsmanship

An in-depth exploration of the rare Australian opals, ethically sourced diamonds, and master-level handcrafting techniques that define the legacy of Opal Ivory Leon.

Australian Opals

The heart of our heritage, sourced directly from the Australian outback.

The Rare Black Opal

Sourced primarily from Lightning Ridge, New South Wales, the Black Opal is the most prized of all varieties. Its dark body tone provides a dramatic canvas for the "play-of-colour," allowing vibrant reds, blues, and greens to radiate with unparalleled intensity.

  • Body Tone: N1 to N4 on the scale
  • Origin: Lightning Ridge, NSW
  • Rarity: Extremely high, geological anomaly
Exquisite Australian Black Opal earrings

Gemological Standards

Uncompromising selection criteria for every diamond and precious stone.

Diamond Grading

We select diamonds that exceed the standard 4Cs, focusing on "Light Performance" and "Scintillation" to ensure maximum brilliance.

Ethical Provenance

Every diamond is conflict-free and tracked through the Kimberley Process, with a preference for Australian Argyle and Canadian origins.

Rare Sapphires

Specializing in Australian Parti Sapphires, showcasing unique bi-colour and tri-colour zoning within a single crystal.

Vibrant Emeralds

Our emeralds are selected for their "Jardin" (internal garden) and deep saturation, sourced from reputable mines in Colombia and Zambia.

Cut Perfection

Custom stone cutting allows us to maximize the fire and brilliance of every gemstone, tailored specifically to our unique jewelry settings.

Certification

All major diamonds and significant gemstones are accompanied by GIA, IGI, or independent Australian laboratory certificates.

Precious Metal Guide

Understanding the characteristics and durability of our premium alloys.

Material Composition Durability Best Used For
18K Yellow Gold 75% Pure Gold + Alloys High Engagement Rings, Fine Jewelry
18K White Gold 75% Gold + Palladium High (Rhodium Plated) Diamond Settings, Modern Bands
Platinum (950) 95% Pure Platinum Extreme Heirloom Pieces, Security for Large Stones
Sterling Silver 92.5% Pure Silver Moderate Fashion Accessories, Occasional Wear
Rose Gold (18K) 75% Gold + Copper High Vintage-inspired designs, Warm skin tones

Ethical Sourcing & Sustainability

At Opal Ivory Leon, we believe that true luxury must be beautiful at every stage of its journey. Our sourcing philosophy is built on the pillars of transparency, environmental stewardship, and social responsibility.

We meticulously vet our suppliers, prioritizing those who adhere to the Responsible Jewellery Council (RJC) standards. From the remote opal fields of South Australia to the diamond cutting centers of the world, we ensure that every material in our workshop is obtained through practices that respect both the earth and the hands that harvest its treasures.

RJC Certified Partners
100% Conflict-Free
Jewelry design sketches and raw materials on a workbench

The Art of Handcrafting

A journey from raw inspiration to a finished masterpiece.

01

Design Translation

Every piece begins with hand-drawn sketches that capture the essence of the materials. We translate these visions into technical blueprints, ensuring structural integrity without compromising on aesthetic flow.

02

Hand-Forging & Casting

Our artisans use traditional hand-forging techniques to shape the precious metals. This process creates a denser, more durable structure than mass-produced casting, providing a lifetime of wear.

03

Precision Stone Setting

Using high-powered microscopes, our master setters secure each gemstone with microscopic precision. This ensures that even the most delicate pavé settings are secure and perfectly aligned.

04

Final Hand-Polishing

The journey concludes with a multi-stage polishing process. We use various compounds and brushes to achieve a mirror-like finish on the metal, highlighting the brilliance of the stones.

05

Quality Control Inspection

Before a piece leaves our workshop, it undergoes a rigorous 12-point inspection. We check for stone security, symmetry, finish quality, and hallmark accuracy.

Care & Maintenance

Preserving the brilliance of your heirloom for generations.

Opal Care & Protection

Opals are delicate gems (5.5-6.5 on Mohs scale). Avoid ultrasonic cleaners and harsh chemicals. Clean with a soft, damp cloth and mild soapy water. Store separately in a soft pouch to prevent scratching from harder stones like diamonds.

Diamond & Gemstone Cleaning

Diamonds attract oils and can become dull. Soak in warm water with a drop of mild dish soap and gently scrub with a soft-bristled toothbrush. Rinse thoroughly and dry with a lint-free cloth.

Metal Polishing & Re-rhodium

Gold and platinum will naturally develop a patina over time. White gold requires periodic rhodium plating (every 12-24 months) to maintain its bright white finish. Use a professional polishing cloth for minor surface brightening.

Annual Professional Inspections

We recommend an annual professional check-up. We inspect the security of all stone settings, check for prong wear, and provide a complimentary deep ultrasonic cleaning (where appropriate) and steam finish.