Photo: Getty Images1/35Catherine, Duchess of Cambridge
Photo: Courtesy of garrard.com2/35House of Garrard Garrard 1735 ring, price upon request, garrard.com
Photo: Courtesy of bulgari.com3/35Bvlgari Le Magnifiche Creazioni ring, price upon request, bulgari.com
Photo: Courtesy of hhjewels.com4/35H&H Jewels oval sapphire ring with split-shank ring, price upon request, hhjewels.com
Photo: Getty Images5/35Princess Takamsado
Photo: Courtesy of davidyurman.com6/35David Yurman Solari large ring with pearls in 18K gold, $1,800, davidyurman.com
Photo: Courtesy of ericaweiner.com7/35Erica Weiner Victorian pearl and emerald trefoil ring, $850, ericaweiner.com
Photo: Courtesy of mikimotoamerica.com8/35Mikimoto Naturale ring, price upon request, mikimotoamerica.com
Photo: Courtesy of fredleighton.com9/35Fred Leighton natural pearl and diamond twin ring circa 1910, price upon request, for information: fredleighton.com
Photo: Getty Images10/35Charlene, Princess of Monaco

Photo: Courtesy of annasheffield.com12/35Anna Sheffield Rosette suite no.13, $8,000, annasheffield.com

Photo: Courtesy of chopard.com14/35Chopard 16.93-carat pear-shaped diamond and 1.29 carats of diamond set in 18K white gold, price upon request, for information: chopard.com
Photo: Getty Images15/35Princess Stephanie of Luxembourg

Photo: Courtesy of forevermark.com17/35Forevermark split shank diamond halo ring, price upon request, forevermark.com
Photo: Courtesy of ylang23.com18/35Sethi Couture rose cut diamond ring in white gold, $2,250, ylang23.com
Photo: Courtesy of Harry Winston19/35Harry Winston micropavé cushion-cut solitaire diamond ring set in platinum, price upon request, harrywinston.com
Photo: Getty Images20/35Mette-Marit Tjessem Høiby
Photo: Courtesy of eragem.com21/35Eragem 14K white gold three stone curved diamond wedding band, $1,140, eragem.com


Photo: Getty Images24/35Mary, Crown Princess of Denmark
Photo: Courtesy of trumpetandhorn.com25/35Vintage Trumpet & Horn Madeira, $5,500, trumpetandhorn.com
Photo: Courtesy of 1stdibs.com26/35Greenstein Antiques ruby diamond gold half eternity ring, $2,486, 1stdibs.com
Photo: Courtesy of simonteakle.com27/35Simon Teakle antique ruby ring, price upon request, simonteakle.com
Photo: Getty Images28/35Camilla, Duchess of Cornwall

Photo: Courtesy of martinkatz.com30/35Martin Katz 5.17 carat 3-stone carre diamond ring, price upon request, martinkatz.com
Photo: Courtesy of graffdiamonds.com31/35Graff 10.01 carat emerald cut diamond ring, price upon request, graffdiamonds.com
Photo: Getty Images32/35Princess Madeleine of Sweden


Photo: Courtesy of vancleefarpels.com35/35Van Cleef & Arpels Estelle solitaire, from $4,600, vancleefarpels.com