The birthstones for December are Tanzanite, Turquoise, and Zircon.
A 5 mm blue Apsara heart-shape Zircon from Cambodia, $60; Columbia Gem House
A 4.17 ct. pink Tanzanian Zircon, $1,876; Mayer & Watt
Necklace in 14K white gold with an 8.60 ct. pear-shape Tanzanite and round full-cut Diamonds (0.85 ctw.), $13,040; Artistry Ltd.
Ring in 18K rose gold with a 28.65 ct. Turquoise and single-cut Diamonds (1.49 ctw.), $23,500; Assael
Wednesday, Dec. 20
A 5 mm heated blue Apsara trillion-shape Zircon from Cambodia, $80; Columbia Gem House
A 4.55 ct. fancy blue Cambodian Zircon, $1,228; Mayer & Watt
A 10.20 ct. Tanzanite, $9,180 keystone; Barker & Co.
Earrings in 18K rolled gold with black vein round Turquoise (88.6 ctw.) and round Diamonds (0.22 ctw.), $9,800; Assael
Necklace in 14K yellow and white gold with a 19.0 ct. blue Zircon and Diamonds (0.67 ctw.), $17,240; Artistry Ltd.
Wednesday, December 13
Earrings in 14K yellow gold with two pear-shaped blue Zircon (11.39 ctw.) and four full-cut Diamonds (0.27 ctw.), $4,900; Artistry Ltd.
A 7.21 ct. Tanzanite, $6,489; Barker & Co.
Earrings in 18K yellow gold with Turquoise (20.0 ctw.) and golden South Sea cultured Pearls 9.0–11.7mm, price on request; Assael
Necklace in 22K and 18K yellow gold with a 4.34 ct. blue Zircon, Diamonds (0.15 ctw.), and mint green Tourmalines (0.12 ctw.), $10,450; Zaffiro
Earrings in 18K yellow gold with cushion-shape Tanzanite (5.46 ctw.), octagon-shape Aquamarine (14.04 ctw.), and two round-shape Diamonds (0.49 ctw.), $42,000; Gumuchian
Wednesday, December 6
Drop Maze earrings in 18K yellow gold with pear-shape Tanzanite (5.04 ctw.), $5,200; Gumuchian
One-of-a-kind pendant in 22K granulated yellow gold with a 46.51 ct. Tanzanite crystal, $10,835; Zaffiro
A 22.80 ct. Zircon, $11,400 keystone; Barker & Co.
Ring in 18K white and yellow gold with a 16.42 ct. blue Tanzanite and Diamonds (3.80 ctw.), $24,000; Jewelerette & Co.
Bracelet in 18K yellow gold with a 68.27 ct. Turquoise from Mexico, fancy yellow Diamonds (0.95 ctw.), and 9.6–11.8 mm golden south sea cultured Pearls, $33,000; Assael