An herbal remedy with a rich history in folk medicine, periwinkle is the common name for a pair of perennial flowering shrubs belonging to the dogbane (Apocynaceae) family. The herb has been used for centuries to treat a variety of ailments and was a favorite ingredient of magical charms in the Middle Ages.recautions. Periwinkle is not known to be harmful when taken in recommended dosages, though it is important to remember that the long-term effects of taking the herb (in any amount) have not been investigated. Periwinkle should not be used by people with low blood pressure or constipation.
The average diamond size for an engagement ring in 2016 is 0.9 carat! Yes, the average carat weight of an engagement ring diamond is 0.9ct!
1 Rings made with 18K White Gold ranges from $3,2.. to $3,700. 2  If a ring is made with an 18K Yellow gold material, expect that the range of cost will be $3,248 to $3,600. 3  TheKnot.com claims that a customized engagement ring can cost three times more that a pre-fabricated one. If that ring needed to be altered, the labor alone could range anywhere from $300 to as much as $2,000 depending on the amount of work that needs to be done. 2  For each carat of a custom engagement ring, plan on spending at least $6,000.