Popsugar Lifestyle Weddings Engagement Rings Under $100 25 Gorgeous Engagement Rings That Cost Under $100 10 May, 2018 by Brinton Parker View On One Page Photo 23 of 25 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 23 Aquamarine & Gold Ring: $55 If you like simple elegance, this aquamarine and gold ring is the perfect fit. Previous Next Start Slideshow WeddingsFrugal LivingEngagement RingsEngagementShopping