This listing is for IGI Certified 1.55CTW Emerald Cut Fancy Vivid Green Lab-Grown Diamond, VS1 Clarity - Perfect for Engagement Rings, Ready to Ship, RJ2783. 

𝐘𝐎𝐔 𝐖𝐈𝐋𝐋 𝐑𝐄𝐂𝐄𝐈𝐕𝐄 𝐓𝐇𝐄 𝐒𝐀𝐌𝐄 𝐃𝐈𝐀𝐌𝐎𝐍𝐃 𝐀𝐒 𝐒𝐄𝐄𝐍 𝐈𝐍 𝐓𝐇𝐄 𝐏𝐈𝐂𝐓𝐔𝐑𝐄 𝐀𝐍𝐃 𝐂𝐄𝐑𝐓𝐈𝐅𝐈𝐂𝐀𝐓𝐄 𝐀𝐓𝐓𝐀𝐂𝐇𝐄𝐃. 

𝐓𝐡𝐞 𝐈𝐆𝐈 𝐜𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐞 𝐢𝐬 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐝 𝐢𝐧 𝐲𝐨𝐮𝐫 𝐩𝐮𝐫𝐜𝐡𝐚𝐬𝐞. You can check on their website by putting in the Report Number as seen in the picture of the report attached.  

Here is the link to your diamond certificate:
https://api.igi.org/viewpdf.php?r=776624953

𝐆𝐞𝐦𝐬𝐭𝐨𝐧𝐞 : Lab Grown Diamond
𝐒𝐡𝐚𝐩𝐞 : Emerald Cut 
𝐒𝐢𝐳𝐞 :  8.55 X 5.16 X 3.38 MM Approx 
𝐖𝐞𝐢𝐠𝐡𝐭 : 1.55CTW Approx
𝐂𝐨𝐥𝐨𝐫 : FANCY VIVID GREEN
𝐂𝐥𝐚𝐫𝐢𝐭𝐲 : VS1
𝐈𝐭𝐞𝐦 𝐂𝐨𝐝𝐞 : RJ2783

𝐋𝐚𝐛 𝐆𝐫𝐨𝐰𝐧 𝐃𝐢𝐚𝐦𝐨𝐧𝐝𝐬 Are Identical To Natural Diamonds. They Have the same Chemical Composition Properties Refractive Index. They are Eco Friendly Man made Diamonds also known as Green Diamonds. 
We have our own unit for manufacturing Lab Grown Diamonds and hence you will get the wholesale price even for single pieces. Please see the attached pictures and videos of our production unit in the about page.

𝐏𝐥𝐞𝐚𝐬𝐞 𝐜𝐨𝐧𝐭𝐚𝐜𝐭 𝐮𝐬 𝐟𝐨𝐫 𝐦𝐚𝐤𝐢𝐧𝐠 𝐭𝐡𝐞 𝐝𝐢𝐚𝐦𝐨𝐧𝐝 𝐢𝐧𝐭𝐨 𝐣𝐞𝐰𝐞𝐥𝐫𝐲. 𝐖𝐞 𝐭𝐚𝐤𝐞 𝐜𝐮𝐬𝐭𝐨𝐦 𝐨𝐫𝐝𝐞𝐫𝐬 𝐟𝐨𝐫 𝐣𝐞𝐰𝐞𝐥𝐫𝐲.

𝐏𝐥𝐞𝐚𝐬𝐞 𝐜𝐨𝐧𝐭𝐚𝐜𝐭 𝐮𝐬 𝐟𝐨𝐫 𝐋𝐚𝐲𝐚𝐰𝐚𝐲/𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐏𝐥𝐚𝐧𝐬.