0.30 Carat J Si2 Round Diamond

Keep in mind: Every gemstone, including lab-grown diamonds, varies in quality beyond the 4Cs (Cut, Color, Clarity, and Carat). At Neptunes Jewelry, we meticulously hand-select each diamond to ensure the highest quality and value for our clients.

We’re committed to ensuring the quality and perfect fit of your treasured piece.

Processing Time
In-stock items process within 3 business days. Our standard lead time is 7-10 business days after the CAD rendering is approved with timelines specified on each product page. For rush orders, please email us to see if we can accommodate your request. Note that your shipping choice does not expedite production.

Insured Shipping
Once ready, we’ll send tracking details. All orders ship fully insured, with signatures required of the recipient. Any fees from failed delivery attempts are the purchaser’s responsibility.