Martini

Martini

The Martini command builds a martini-style setting for one or more gems already placed in the document: a small number of prongs converge from the girdle down to a point below the stone, optionally topped by an upper rail and flanked by a bar of side stones. Select your gems first — the command asks you to pick them before opening the panel — and it builds one martini setting per gem. Round, cushion and most fancy shapes are supported; Triangle and Coffin shapes are excluded.

The panel is organized into three tabs: Prong, Upper Rail and Bar.

Prong

• Mode: Circle uses a simple round cross-section; Custom Shape lets you pick a profile asset for the prong cross-section; Claw builds a claw-tip prong instead of a plain cylinder.
• Diameter Top / Diameter Bottom: The prong’s cross-section diameter at the girdle and at its base.
• Over Girdle: How far the prong extends above the gem’s girdle.
• Birth Separation: Tangential offset that spreads the tops of the prongs apart along the girdle.
• Gem Inside: How far the prong reaches over the gem.
• Height: Length of the prong, from the girdle down to its tip. You can also drag the purple gumball shown in the viewport, anchored on the first selected gem, to set this value directly.
• Inclination Z: Vertical position of the bow’s middle control point — 0 keeps the prong straight down the midpoint.
• Rotation: Rotates the prong section.
• Extension Manufacturing: Extra prong length added when working in Manufacturing mode.
• Face Tangent: When on, the prong cross-section faces the girdle’s tangent direction — the default for symmetric gems (round, cushion…). When off, it faces the gem’s center instead — the default for asymmetric shapes like pear or heart.

Claw section (visible only in Claw mode):

• Cap Distance: How far the claw’s cap reaches in over the gem.
• Cap Height: Vertical rise of the cap above the girdle.
• Tip Width: Width of the claw tip.
• Tip Smoothness: How smoothly the claw body transitions into the cap.

Upper Rail

• Enabled: Toggles the upper rail on or off.
• Mode: Circle uses a single Diameter field for a round cross-section; Custom Shape unlocks independent Width and Height and lets you pick a profile asset.
• Diameter (Circle) or Width / Height (Custom Shape): Dimensions of the rail’s cross-section.
• Under Girdle: How far the rail sits below the gem’s girdle.
• Rail Diameter %: The rail centerline as a percentage of the gem’s own outline — a single uniform value that keeps the rail proportional to the stone even on non-round shapes.
• Rotation: Rotates the rail cross-section.
• Rail Y Offset: Only shown for Pear and Heart gems; shifts the rail centerline along Y to recenter it on an asymmetric outline.
• Chamfer and Chamfer Offset: Adds an internal chamfer to the rail, with a control over how far it’s offset.

Bar

• Enabled: Toggles the side bar (side bezel stones) on or off.
• Shape: Round or Princess, for the two side stones flanking the main gem.
• Gem Size: Diameter of each side stone.
• Distance: Spacing of the side stones from the main gem.
• Width: Width of the bezel wall holding each side stone.
• Over Girdle: How much the bezel wall extends past the side stone’s girdle.
• Fillet Edge: Rounds the bezel’s edge.
• Move in Z: Vertical offset of the bar relative to the main gem.

Editing

When you accept the command, each martini setting (prongs, rail and side bar) is baked into the document as its own group, tied to the gem it was built on.