Understanding the Four Most Important Aspects of Engagement Rings %br%First of all, depending on the store that you find yourself at, most retail assistants are limited within their familiarity with diamonds and gemstones. Diamond engagement rings are costly and putting this decision in a assistant’s hands isn’t a wise choice. Also, retail stores are notoriously overpriced due to overhead that they must maintain for keeping their shop running. And finally, a stores band inventory is going to be limited by the things they now have on hand and typically includes a certain price/value range. engagement rings¶