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4 Carat White Gold Round Solitaire Engagement Rings

These white gold solitaires pair a 4 ct round lab-grown diamond center, set and priced in, with a band in 10K, 14K or 18K white gold. Choose a thin or rounded plain band, a pavé band, a hidden halo or a cathedral setting with a graduated pavé band. A 4 ct round lab-grown diamond solitaire engagement ring in 14K white gold is the classic pick.

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2Select a diamond
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3Complete the ring
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4 rings
4 rings
Conflict-Free
Ethically sourced diamonds
Lifetime Warranty
Free cleaning & resizing
Free Shipping
30-day returns
IGI / GIA Certified
Independently graded

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Buying guide

Why a round center for a solitaire

The round brilliant is cut to return the most light of any shape, so it gives the most sparkle. A 4 carat round lab-grown diamond is roughly 10 mm across. As a solitaire, it sits alone on the band with nothing to distract from it, the most traditional engagement ring look there is. Prongs hold the round center up high so light enters from the sides as well as the top.

White gold karats

White gold is gold alloyed with white metals and plated with rhodium for a bright finish. The plating wears over time and can be renewed. 10K is the hardest, 14K balances durability and gold content and is the most common choice, and 18K has the most gold. All three give the cool white look that keeps a colorless center looking crisp.

Band and setting choices

  • Plain band: thin or rounded, the simplest look.
  • Pavé band: small lab-grown diamond accents along the shank.
  • Hidden halo: accents beneath the center, seen from the side.
  • Cathedral: arches that lift the center over a graduated pavé band.

Made to order

Each ring is made for you in 10–15 days. Shipping is free on orders over $500, returns are accepted within 30 days, and one resize is free within 60 days of delivery.