ダイヤモンド プラチナリング(計0.5カラット/ハーフエタニティ/4月誕生石)《WRGD2666》,0.5 ct Floral Band Solitaire with Side Accents Engagement Ring 10K white Gold Synthetic Diamond HPHT CVD Diamond Ring,0.74ct Platinum Emerald Cut Diamond Ring with Diamond Set Shoulders – G Collins & Sons,Engagement Ring with a Radiant Diamond and Asymmetrical Band in Platinum and 18K Rose Gold - Kwiat,0.74ct Platinum Emerald Cut Diamond Ring with Diamond Set Shoulders – G Collins & Sons