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The Juliana Hope cushion-cut blue lab-grown diamond engagement ring in rose gold.

Princess, Cushion & Asscher Lab-Grown Diamond Rings

Square, and anything but plain.

Princess, cushion and asscher lab-grown diamonds.

Square, and anything but plain. The princess is sharp and modern, the cushion is soft and romantic, and the asscher is pure Art Deco glamour.

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5 products

The Juliana Hope blue cushion moissanite ring in yellow gold, isolated product view
The Juliana Hope Cushion-Cut Lab-Grown Diamond Ring Sale priceFrom £2,302.95
Rose gold ring with a blue gemstone and diamond accents on a light background
The Sapphire Vista Princess-Cut Lab-Grown Diamond Ring Sale priceFrom £2,763.95
Gold-tone ring with a princess-cut center stone, side stones, and a pavé band in front of a message card.
The Luna Princess-Cut Lab-Grown Diamond Ring Sale priceFrom £1,036.95
White gold princess-cut moissanite twisted band ring with accent stones on a white background.
The Twisted Band Princess-Cut Lab-Grown Diamond Ring Sale priceFrom £498.95
Close-up view of The Bella Jewel Asscher-cut moissanite ring in solid gold with prong setting and pavé band.
The Bella Jewel Asscher-Cut Lab-Grown Diamond Ring Sale priceFrom £1,496.95

Three ways to go square

Princess cut: pointed corners and brilliant sparkle for a crisp, contemporary look. Cushion cut: rounded corners and big, pillowy flashes of light, a vintage favorite. Asscher cut: a square step cut with a hypnotic, tunnel-like glow straight out of the 1920s.

One princess design opens on a three-carat blue diamond. Prefer a rectangle? See radiant and emerald cut. All shapes: lab-grown diamond rings.