Three-Stone Engagement Rings

A three-stone engagement ring features a center diamond flanked by two matching side stones, each representing one chapter of a couple's journey: the past (how you met), the present (who you are now), and the future (where you are going together). Also called a trilogy or trinity ring, the three-stone design is one of the most emotionally meaningful engagement ring styles.

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Three-stone engagement rings — also known as trinity rings or past-present-future rings — feature a center diamond flanked by two matching side stones. The three diamonds represent your past, present, and future together, making this one of the most meaningful engagement ring styles you can choose.

The design is also exceptionally versatile. Our NYC jewelers can customize the size ratio of your three stones — equal-sized for a balanced look, or a larger center with smaller sides for a more dramatic focal point. Side stones can be the same shape as the center or mixed shapes (such as a round center with tapered baguette sides for a vintage feel).

Three-stone rings have royal history: they were popularized by Princess Diana's engagement ring (an oval flanked by rounds) and remain a top choice for those who want meaning woven into their design.

Browse by center stone shape: oval three-stone rings, round brilliant three-stone rings, or cushion cut three-stone rings. Combine with a pavé shank for added sparkle.

Available in platinum, white gold, yellow gold, and rose gold, with natural or lab-grown diamonds. See our complete engagement ring collection and read the Engagement Ring Buying Guide.

Pairing a Past-Present-Future Ring with a Wedding Band

Wondering what a past, present, and future ring means beyond the three stones themselves? Many couples extend the symbolism by pairing it with a wedding band that continues the same stone shapes or metal — ask us to design a wedding band to sit alongside any three-stone ring shown here.

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Three-Stone Engagement Rings FAQ