F3: Cooler Lemon Citrine (Radial Core)
Narrow spectrum, zero red/orange, compressed range where darks stay bright and sunny.
F4: Cooler Lemon Citrine (Open Table Core)
The 12-facet crystal ring paired with an open, luminous central table for maximum air.
F5: Airy Chiffon Lemon (Ultra-Light Core)
Delicate high-key lemon quartz range with warm pastel bevels.
F1: Warm Sunny Citrine (Baseline)
The initial warm golden-orange spectrum with full dynamic range.
