To create a white sapphire engagement ring, you will need to follow these steps:

1. Choose the right white sapphire. White sapphires come in a variety of shapes, sizes, and quality grades. It's important to choose a high-quality white sapphire that is durable and has good clarity and brilliance.

2. Choose a setting. The setting is the part of the ring that holds the white sapphire in place. There are many different types of settings, such as prong, bezel, or channel settings. Choose a setting that will showcase the beauty of the white sapphire and complement your style.

3. Choose the right metal. White sapphire engagement rings can be made with a variety of metals, including platinum, white gold, and silver. Consider your lifestyle and budget when choosing the metal for your ring.

4. Work with a jeweler. Creating a white sapphire engagement ring requires the expertise of a professional jeweler. Work with a jeweler who has experience creating custom engagement rings and who can guide you through the process.

5. Decide on any additional features. You may want to add additional diamonds or gemstones to your white sapphire engagement ring to make it even more unique and special. Discuss these options with your jeweler.

6. Finalize your design. Once you have chosen your white sapphire, setting, metal, and any additional features, work with your jeweler to finalize the design of your engagement ring. Make sure you are happy with the final design before placing your order.