AN 18K WHITE GOLD, SAPPHIRE AND DIAMOND RING. Of navette form, centering an oval-cut faceted sapphire accented with numerous bead and collet set full and single-cut diamonds, completed with milgrain accents. Sapphire wt.: 2.30 cts. Diamond wt.: 1.00 cts. Size 7 1/4. Estimate $1,000-2,000