Three Stones

Three Stones

The Three Stones command works like a Gem Studio for trilogy designs: instead of creating one gemstone at a time, it creates a coordinated set of three gemstones — one center stone and two symmetric side stones — already positioned around the ring size. The three gems are placed as a single editable element, ready to be used as the starting point for any of the Trilogy gemsets.

The command panel is divided into two sections: Ring and Stones.

Ring

The Ring section defines the finger size the stones are arranged around. Set the ring size using your preferred sizing standard, and the three gems will be positioned at the correct distance from the finger circle. A reference circle for the finger is created together with the stones, so the whole set stays consistent when you edit it later.

Stones

The Stones section contains two tabs, one for the Center Stone and one for the Side Stones. The two side stones are always symmetric: whatever you set in the Side Stones tab is mirrored on both sides of the center stone.

Center Stone

• Shape: Choose the cut of the center stone from the same catalog as Gem Studio: Round, Cushion, Princess, Radiant, Pear, Oval, Marquise, Heart, Emerald, Asscher, Trillion, Triangle, Calf, Coffin and Baguette.
• Material: Select the gemstone material (Diamond, Ruby, Emerald, Sapphire, Amethyst, Aquamarine, Morganite, Citrine, Tanzanite, Quartz or Moissanite). The material is represented by its color in the viewport and, as in Gem Studio, it affects the carat-to-size conversion through its density.
• Carats: Set the weight of the center stone. The gem dimensions are computed from the carat weight using standard proportions for the selected shape and material.
• Distance above ring: Controls how far the center stone sits above the finger circle, in millimeters.
• Rotation: Rotates the center stone around its vertical axis — useful for fancy shapes such as Marquise, Oval or Emerald.

Side Stones

• Shape and Material: Same options as the center stone, chosen independently — for example, a Round diamond center with Pear sapphire sides.
• Carats: Set the weight of each side stone.
• Distance above ring: Controls how far the side stones sit above the finger circle, independently of the center stone.
• Angle: Positions the side stones around the finger axis, measured from the top of the ring. Increase the angle to move the side stones further down and away from the center stone.
• Rotation: Rotates each side stone around its own vertical axis, mirrored on both sides.
• Rotation Y: Tilts the side stones toward or away from the center stone, mirrored on both sides. This is the key parameter to make the side gems “lean” against the center stone for a natural trilogy look.

Saving your defaults

The header of the panel includes a Save defaults button. Click it to store the current configuration (shapes, materials, weights and positions) as your default starting point — the next time you run the command, it will open with those values, keeping the ring size of your current session. Right-click the same button to delete the saved defaults and go back to the factory values.

Using it with the Trilogy gemsets

When you accept the command, the three gems and the finger reference circle are baked into the document as a single group. This element is the foundation the Trilogy gemsets build on: commands such as Trilogy Individual, Trilogy Bezels, Trilogy Trellis, Trilogy Halo and Trilogy East-West take the three stones as their input and generate the metal around them.

Because the element is editable, you can reopen it at any time to change the stones — sizes, shapes, positions — and any gemset built on top of them stays attached to the new stones and updates accordingly. You never have to rebuild the setting because the customer asked for a bigger center stone.