Engagement Rings with 0,30 - 0,50 ct Diamonds

518 Products

  • Yellow Gold engagement ring with Oval 0.50 ct Central and 0.05 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Oval 0.50 ct Central and 0.05 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.532,00 € Tax included
    Regular price 1.802,00 € Sale price 1.532,00 €
    Tax included
  • White Gold engagement ring with Oval 0.50 ct Central and 0.05 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Oval 0.50 ct Central and 0.05 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.526,00 € Tax included
    Regular price 1.795,00 € Sale price 1.526,00 €
    Tax included
  • White Gold engagement ring with Oval 0.50 ct Central and 0.05 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Oval 0.50 ct Central and 0.05 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.538,00 € Tax included
    Regular price 1.809,00 € Sale price 1.538,00 €
    Tax included
  • White Gold engagement ring with Oval 0.50 ct Central and 0.05 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Oval 0.50 ct Central and 0.05 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.532,00 € Tax included
    Regular price 1.802,00 € Sale price 1.532,00 €
    Tax included
  • Yellow Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.362,00 € Tax included
    Regular price 1.602,00 € Sale price 1.362,00 €
    Tax included
  • Gold Rings

    Gremari

    Discover The Collection
  • Yellow Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.380,00 € Tax included
    Regular price 1.623,00 € Sale price 1.380,00 €
    Tax included
  • Yellow Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.368,00 € Tax included
    Regular price 1.609,00 € Sale price 1.368,00 €
    Tax included
  • White Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.362,00 € Tax included
    Regular price 1.602,00 € Sale price 1.362,00 €
    Tax included
  • White Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.380,00 € Tax included
    Regular price 1.623,00 € Sale price 1.380,00 €
    Tax included
  • White Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Oval 0.50 ct Central and 0.052 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.368,00 € Tax included
    Regular price 1.609,00 € Sale price 1.368,00 €
    Tax included
  • Yellow Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.337,00 € Tax included
    Regular price 1.573,00 € Sale price 1.337,00 €
    Tax included
  • Yellow Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.398,00 € Tax included
    Regular price 1.645,00 € Sale price 1.398,00 €
    Tax included
  • Yellow Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.404,00 € Tax included
    Regular price 1.652,00 € Sale price 1.404,00 €
    Tax included
  • White Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.337,00 € Tax included
    Regular price 1.573,00 € Sale price 1.337,00 €
    Tax included
  • White Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.398,00 € Tax included
    Regular price 1.645,00 € Sale price 1.398,00 €
    Tax included
  • White Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Heart 0.50 ct Central and 0.03 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.404,00 € Tax included
    Regular price 1.652,00 € Sale price 1.404,00 €
    Tax included
  • Yellow Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.264,00 € Tax included
    Regular price 1.487,00 € Sale price 1.264,00 €
    Tax included
  • Earrings

    Gremari

    Discover Collection
  • Yellow Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.404,00 € Tax included
    Regular price 1.652,00 € Sale price 1.404,00 €
    Tax included
  • Yellow Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.179,00 € Tax included
    Regular price 1.387,00 € Sale price 1.179,00 €
    Tax included
  • Yellow Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.422,00 € Tax included
    Regular price 1.673,00 € Sale price 1.422,00 €
    Tax included
  • Yellow Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.131,00 € Tax included
    Regular price 1.330,00 € Sale price 1.131,00 €
    Tax included
  • Yellow Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold Yellow Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.410,00 € Tax included
    Regular price 1.659,00 € Sale price 1.410,00 €
    Tax included
  • White Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.264,00 € Tax included
    Regular price 1.487,00 € Sale price 1.264,00 €
    Tax included
  • White Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.404,00 € Tax included
    Regular price 1.652,00 € Sale price 1.404,00 €
    Tax included
  • White Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.179,00 € Tax included
    Regular price 1.387,00 € Sale price 1.179,00 €
    Tax included
  • White Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.422,00 € Tax included
    Regular price 1.673,00 € Sale price 1.422,00 €
    Tax included
  • White Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Round 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.131,00 € Tax included
    Regular price 1.330,00 € Sale price 1.131,00 €
    Tax included
  • White Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds by GREMARI, 14K (585) gold White Gold engagement ring with Oval 0.50 ct Central and 0.029 ct Sideline Lab-grown Diamonds - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.410,00 € Tax included
    Regular price 1.659,00 € Sale price 1.410,00 €
    Tax included
  • Yellow Gold engagement ring with Oval 0.50 ct Lab-grown Diamond by GREMARI, 14K (585) gold Yellow Gold engagement ring with Oval 0.50 ct Lab-grown Diamond - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.240,00 € Tax included
    Regular price 1.459,00 € Sale price 1.240,00 €
    Tax included
  • Yellow Gold engagement ring with Oval 0.50 ct Lab-grown Diamond by GREMARI, 14K (585) gold Yellow Gold engagement ring with Oval 0.50 ct Lab-grown Diamond - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.252,00 € Tax included
    Regular price 1.473,00 € Sale price 1.252,00 €
    Tax included
  • Yellow Gold engagement ring with Round 0.50 ct Lab-grown Diamond by GREMARI, 14K (585) gold Yellow Gold engagement ring with Round 0.50 ct Lab-grown Diamond - GREMARI fine jewelry
    ◇ 0.50ct
    Regular price 1.057,00 € Tax included
  • Yellow Gold Ring with Round 0,50ct Lab-grown Diamond Yellow Gold Ring with Round 0,50ct Lab-grown Diamond
    ◇ 0.50ct
    -15%
    Regular price 1.611,00 € Tax included
    Regular price 1.895,00 € Sale price 1.611,00 €
    Tax included
  • Yellow Gold Ring with Round 0,50ct Lab-grown Diamond Yellow Gold Ring with Round 0,50ct Lab-grown Diamond
    ◇ 0.50ct
    -15%
    Regular price 1.313,00 € Tax included
    Regular price 1.545,00 € Sale price 1.313,00 €
    Tax included
  • Yellow Gold Ring with Round 0,50ct Lab-grown Diamond Yellow Gold Ring with Round 0,50ct Lab-grown Diamond
    ◇ 0.50ct
    -15%
    Regular price 984,00 € Tax included
    Regular price 1.158,00 € Sale price 984,00 €
    Tax included
  • Yellow Gold Ring with Round 0,50ct Lab-grown Diamond Yellow Gold Ring with Round 0,50ct Lab-grown Diamond
    ◇ 0.50ct
    -15%
    Regular price 1.082,00 € Tax included
    Regular price 1.273,00 € Sale price 1.082,00 €
    Tax included
  • Yellow Gold Ring with Round 0,50ct Lab-grown Diamond Yellow Gold Ring with Round 0,50ct Lab-grown Diamond
    ◇ 0.50ct
    -15%
    Regular price 1.264,00 € Tax included
    Regular price 1.487,00 € Sale price 1.264,00 €
    Tax included
  • Necklaces

    Gremari

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  • Yellow Gold Ring with Round 0,50ct Lab-grown Diamond Yellow Gold Ring with Round 0,50ct Lab-grown Diamond
    ◇ 0.50ct
    -15%
    Regular price 1.113,00 € Tax included
    Regular price 1.309,00 € Sale price 1.113,00 €
    Tax included
  • Yellow Gold Ring with Round 0,50ct Lab-grown Diamond Yellow Gold Ring with Round 0,50ct Lab-grown Diamond
    ◇ 0.50ct
    -15%
    Regular price 1.337,00 € Tax included
    Regular price 1.573,00 € Sale price 1.337,00 €
    Tax included
  • Yellow Gold engagement ring with Round 0.40 ct Lab-grown Diamond by GREMARI, 14K (585) gold Yellow Gold engagement ring with Round 0.40 ct Lab-grown Diamond - GREMARI fine jewelry
    ◇ 0.40ct
    Regular price 949,00 € Tax included
  • Yellow Gold Ring with Round 0,40ct Lab-grown Diamond Yellow Gold Ring with Round 0,40ct Lab-grown Diamond
    ◇ 0.40ct
    -15%
    Regular price 1.538,00 € Tax included
    Regular price 1.809,00 € Sale price 1.538,00 €
    Tax included
  • Yellow Gold Ring with Round 0,40ct Lab-grown Diamond Yellow Gold Ring with Round 0,40ct Lab-grown Diamond
    ◇ 0.40ct
    -15%
    Regular price 1.252,00 € Tax included
    Regular price 1.473,00 € Sale price 1.252,00 €
    Tax included
  • Yellow Gold Ring with Round 0,40ct Lab-grown Diamond Yellow Gold Ring with Round 0,40ct Lab-grown Diamond
    ◇ 0.40ct
    -15%
    Regular price 912,00 € Tax included
    Regular price 1.073,00 € Sale price 912,00 €
    Tax included
  • Yellow Gold Ring with Round 0,40ct Lab-grown Diamond Yellow Gold Ring with Round 0,40ct Lab-grown Diamond
    ◇ 0.40ct
    -15%
    Regular price 1.003,00 € Tax included
    Regular price 1.180,00 € Sale price 1.003,00 €
    Tax included
  • Yellow Gold Ring with Round 0,40ct Lab-grown Diamond Yellow Gold Ring with Round 0,40ct Lab-grown Diamond
    ◇ 0.40ct
    -15%
    Regular price 1.100,00 € Tax included
    Regular price 1.294,00 € Sale price 1.100,00 €
    Tax included
  • Yellow Gold Ring with Round 0,40ct Lab-grown Diamond Yellow Gold Ring with Round 0,40ct Lab-grown Diamond
    ◇ 0.40ct
    -15%
    Regular price 1.034,00 € Tax included
    Regular price 1.216,00 € Sale price 1.034,00 €
    Tax included
  • Yellow Gold Ring with Round 0,30ct Lab-grown Diamond Yellow Gold Ring with Round 0,30ct Lab-grown Diamond
    ◇ 0.30ct
    -15%
    Regular price 942,00 € Tax included
    Regular price 1.108,00 € Sale price 942,00 €
    Tax included
  • Yellow Gold engagement ring with Round 0.30 ct Lab-grown Diamond by GREMARI, 14K (585) gold Yellow Gold engagement ring with Round 0.30 ct Lab-grown Diamond - GREMARI fine jewelry
    ◇ 0.30ct
    -15%
    Regular price 906,00 € Tax included
    Regular price 1.066,00 € Sale price 906,00 €
    Tax included
  • Bracelets

    Gremari

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  • Yellow Gold engagement ring with Oval 0.50 ct Lab-grown Diamond by GREMARI, 14K (585) gold Yellow Gold engagement ring with Oval 0.50 ct Lab-grown Diamond - GREMARI fine jewelry
    ◇ 0.50ct
    -15%
    Regular price 1.246,00 € Tax included
    Regular price 1.466,00 € Sale price 1.246,00 €
    Tax included

Engagement Rings with 0,30 - 0,50 ct Diamonds

Is a 0.50 carat diamond a good size for an engagement ring?

A diamond between 0.30 and 0.50 ct offers noticeably more presence than lower carat weights while still keeping the ring refined and easy to wear every day. At the upper end of the range, a half-carat engagement ring gives the centre stone a clear visual role without making the design feel overly bold.

For many couples, this makes 0.30–0.50 ct an appealing middle ground between a very understated diamond and a larger statement stone.

Which diamond shape works well at 0.30–0.50 ct?

Round diamonds are a classic choice for their balanced appearance and brilliance, while Oval and Pear can give the ring a more elongated, contemporary look.

The final effect depends on more than carat weight alone. Shape, proportions and the width of the band all influence how prominent the centre diamond appears on the hand.

Solitaire or side stones – which style should you choose?

A solitaire engagement ring keeps the focus firmly on the centre diamond and works particularly well in this carat range. A fine band can make the stone stand out even more.

If you prefer additional sparkle, subtle side stones or pavé details can add brilliance while keeping the centre diamond visually dominant.

At GREMARI, we create engagement rings in our traditional jewellery workshop with careful attention to the balance between the diamond, setting and proportions of the finished ring.