Holt Science Spectrum: Physical Science: Student Edition 2008

Express a love -- and style -- that's divine. Open-cut heart stations adorn this delicate sterling silver necklace by Giani Bernini. Approximate length: 16 inches.

Unlock the key to her heart with this symbolic style. A heart-shaped key pendant with a cut-out keyhole shines with the addition of sparkling, round-cut diamonds (1/10 ct. t.w.). Setting and chain crafted in 18k gold over sterling silver. Approximate length: 18 inches. Approximate drop: 1-3/8 inches.

Black and white, and raved all over. This necklace, crafted from sterling silver, features both an onyx (8 mm x 25 mm) and a cultured freshwater pearl (10 mm), along with white topaz accents for a stunning look. Approximate length: 17 inches Approximate drop: 2 inches.