A 0.91 carat pear and 1.50 carat square octagonal lab-created strontium titanate with 0.52 carats of round white zircon in 18K yellow gold over sterling silver ring - the diamond simulant ring where two different cuts - pear and square octagonal - create a multi-shape arrangement with visual variety. The pear cut adds direction; the square octagonal provides geometric presence. Diamond simulant produces exceptional spectral fire across both stone forms. Not sizeable.