Designer Diamond Engagement Rings are embellished in gold and platinum. Fidelis Jewels Pvt. Ltd. Manufactures Designer Diamond Engagement Rings. Fidelis Jewels Pvt. Ltd. Also manufactures different types of ornaments. Designer Diamond Engagement Rings are made from white diamond. The Ring is available in simple design. The Ring has a heart shaped structure in the middle with diamonds in it. This is suitable to wear in formal occasions as well as can be used for gifting also.