Gold Diamond blank from ZlSr 750-250 and ZlSr 585-415 alloys

«Gold Diamond» is the name of a high-readiness blank; it does not imply the presence of a diamond or other insert. Two gold-silver alloys are available.

What this item is

The ZlSr 750-250 and ZlSr 585-415 options differ in gold content and are not interchangeable without changing the order. The shape and presence of seats for inserts are not confirmed by the source data, so they are determined only by the drawing of the specific version.

Composition and documents

• Grades: ZlSr 750-250 and ZlSr 585-415
• ZlSr 750-250: gold 75.0–75.5%; silver 24.5–25.5%
• ZlSr 585-415: gold 58.5–59.0%; silver — balance
• Supply document: TU 9641-823-05785324-2005

These are two-component gold-silver alloys. The numbers in the designation specify the nominal fractions of precious metals in thousandths; the actual range is confirmed by the batch quality document. The grades cannot be substituted for each other based on color alone: composition differences affect processing, joining with other parts, and the final hallmark of the product.

Applications and technological role

• further processing of the jewelry semi-finished product according to the selected grade and drawing;
• finishing, polishing, and assembly after checking geometry and allowances;
• production of items of the corresponding hallmark with separate accounting of material variants;

What to agree before ordering

In the order, select one grade — ZlSr 750-250 or ZlSr 585-415 — and specify the version code, dimensions, weight, tolerances, surface, and quantity. Request the drawing, quality document, melt number, and packaging. If the design includes a stone, soldering, or moving elements, this is confirmed separately. Do not use the word «diamond» as a characteristic of the configuration without specifying the insert.

Safety and handling

Store the blank separately by grade and batch, protecting it from contamination, moisture, and damage. When grinding, polishing, or soldering, use local exhaust ventilation, eye protection, and gloves. Collect dust, chips, and trimmings separately as material containing precious metals; select the heating mode according to the process sheet.