MAIN STONE SHAPE Oval Concave Cut. October – Opal & Tourmaline November – Topaz & Citrine December – Tanzanite & Turquoise. MAIN STONE Swiss Blue Topaz. July – Ruby August – Peridot September – Sapphire.
Trilliant Concave Cut Natural Swiss Blue Topaz 6.72ct 13×12.5mm Marvelous Gem
MAIN STONE SHAPE Trilliant Concave Cut. October – Opal & Tourmaline November – Topaz & Citrine December – Tanzanite & Turquoise. MAIN STONE Swiss Blue Topaz. July – Ruby August – Peridot September – Sapphire.