For 4 carat lab grown diamond, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our 4 carat lab grown diamond has been well received by many customers and enjoyed a good reputation in many countries. MessiGems4 carat lab grown diamond have characteristic design & practical performance & competitive price, for more information on the 4 carat lab grown diamond, please feel free to contact us.