Features of Platinum Prong Settings

Quality Assurance Benchmarks highlight workmanship of semi-finished and finished platinum jewelry. These examples illustrate methods for evaluating the quality and durability of platinum prongs and settings.

Quality Assurance Benchmarks highlight workmanship of semi-finished and finished platinum jewelry. Consumers are more satisfied with their jewelry when diamonds or other stones do not loosen or become dislodged. These two examples illustrate methods for evaluating the quality and durability of platinum prongs and settings.

Side views of two platinum solitaires

Quality Assurance Benchmarks highlight workmanship of semi-finished and finished platinum jewelry. Consumers are more satisfied with their jewelry when diamonds or other stones do not loosen or become dislodged. These two examples illustrate methods for evaluating the quality and durability of platinum prongs and settings.

Side view of platinum solitaire with a split shank, with diamonds set in the shank

Potential Problems and Engineering Features

In this example, a sales associate has sold a loose diamond and a platinum ring setting

Quality Assurance Benchmarks highlight workmanship of semi-finished and finished platinum jewelry. Consumers are more satisfied with their jewelry when diamonds or other stones do not loosen or become dislodged. These two examples illustrate methods for evaluating the quality and durability of platinum prongs and settings.

Perspective view of a platinum solitaire with diamonds set in the shank. This same ring is also shown in a side view, with the loose diamond positioned above the mounting.

Close-up side view of the platinum solitaire, with the loose stone positioned above the mounting.

Close-up side view of the platinum solitaire, with the loose stone set into the too-small setting.

This platinum setting is made using a process called die-striking. The prongs are cut away from sheet-stock by a die, assembled, and then oven-soldered. Once they are made, they are torch-soldered into the setting.

This platinum setting is made using a process called die-striking. The prongs are cut away from sheet-stock by a die, assembled, and then oven-soldered. Once they are made, they are torch-soldered into the ring mounting.

Perspective view of die-struck platinum solitaire

Real Life Consequences: This is a real story, but some details have been changed. A retailer designed and created a custom platinum setting for a 22.50 carat round brilliant diamond. The ring was hand fabricated using 90% platinum/10% iridium, which is among the softest and most malleable of all platinum alloys.

This platinum setting is made using a process called die-striking. The prongs are cut away from sheet-stock by a die, assembled, and then oven-soldered. Once they are made, they are torch-soldered into the ring mounting.

Close-up view of a platinum solitaire setting of the 22.50 carat stone, with the prongs set with baguettes.

Close-up view of a platinum solitaire setting of a 22.50 carat stone, with the prongs set with baguettes.

Real Life Consequences: The original ring’s fragile custom mounting is shown next to one made using the specifications for a secure setting. With a 22.5 carat diamond, a setting should minimize potential for loss.

Two illustrations side-by-side: the first is the original ring’s mounting, and the second a mounting illustrating the parameters for a secure setting, including proper prong contact, prong angle, and gallery height.

GIA

Two illustrations side-by-side: the first is the original ring’s mounting, and the second a mounting illustrating the parameters for a secure setting, including proper prong contact, prong angle, and gallery height.

GIA

Featured Quality Assurance Benchmarks

Evaluate the quality of the setting of a ring with platinum prongs

Set a Round in Platinum Prongs

Setting a round center stone in a ring with platinum prongs

Setting a Princess-cut Center Stone in a Platinum Mounting with V-Prongs

Set a Princess-cut in V-Prongs

Setting a Princess-cut Center Stone in a Platinum Mounting with V-Prongs

Evaluate the quality of a platinum cobalt ring with no diamonds in the shank that was sized down using a torch. Contains video and illustrations.

Sizing Up: Platinum Alloy

Sizing Up a Platinum Alloy Ring with Diamonds Using a Torch

Evaluate the quality of platinum jewelry that has been worn and then refinished.

Refinish Worn Platinum Jewelry

Techniques for refinishing worn platinum jewelry