Best Stones for Engagement Rings

Diamond rates 10 on the Mohs scale, sapphire and ruby rate 9, and moissanite rates 9.25. These four survive daily rings with normal care.

Stones below 8, such as emerald, aquamarine, morganite, and opal, need protective settings and gentler wear, and suit buyers who accept more care.

Diamond remains the classic engagement stone for hardness, brilliance, and tradition. Lab-grown diamonds offer the same material at a lower price.

Moissanite offers similar hardness and more fire at a far lower price, suiting buyers who want a large, bright stone on a smaller budget.

Sapphire is the most practical colored engagement stone, hard, available in many colors, and durable in daily rings. Ruby shares its hardness but costs more at high quality.

Emerald offers unmatched green color but needs care, since most emeralds have inclusions and lower toughness despite fair hardness.

Bezel settings protect stone edges best and suit softer stones and active wearers. Low baskets with sturdy prongs suit hard stones and show more of the stone.

Halo settings add protection around the center stone while adding sparkle, which helps softer stones survive daily wear.

Start with daily life: hands-on work favors diamond, sapphire, ruby, or moissanite. Desk work and careful wear allow a wider range.

Then choose by meaning and color. A stone chosen for personal meaning will be worn more happily than a stone chosen only for durability.