5 Carat Cushion Cut Lab Grown Diamond Engagement Ring

Split Shank Lab Grown Diamond Engagement Ring - Elongated Cushion

$2,579

IGI Certified

Diamond Carats

3.50 CT 4.00 CT 4.50 CT 5.00 CT

Select Ring Size (US):

Ring Size Guide

Find Your Ring Size

Choose how you'd like to measure, and we'll match it to a US size.

Method 01

Measure Your Finger

Step One

Wrap a string, piece of paper, or fabric around the base of the finger.

Step Two

Mark the point where it overlaps to form a full circle.

Step Three

Lay it flat and measure the length in millimetres.

Step Four

You'll get the ring size by circumference

US Size	4	4.5	5	5.5	6	6.5	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	13
Diameter (mm)	14.9	15.3	15.7	16.1	16.5	16.9	17.3	17.7	18.2	18.6	19.0	19.4	19.8	20.2	20.6	21.0	21.4	22.2

Measurements are approximate. If you're between sizes, we recommend sizing up.

Method 02

Measure An Existing Ring

Step One

Choose a ring that already fits the intended finger comfortably.

Step Two

Measure the inside diameter, edge to edge, in millimetres.

Step Three

Match the measurement to the closest size below.

Step Four

Get comfort fit

US Size	4	4.5	5	5.5	6	6.5	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	13
Diameter (mm)	14.9	15.3	15.7	16.1	16.5	16.9	17.3	17.7	18.2	18.6	19.0	19.4	19.8	20.2	20.6	21.0	21.4	22.2

Measurements are approximate. If you're between sizes, we recommend sizing up.

Estimated date of shipment: Wednesday, Sep 30 2026

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A statement making 5 carat cushion cut lab grown diamond engagement ring from Grauv Jewelry, thoughtfully designed by our team for women who want a bold yet elegant presence. The elongated cushion cut center diamond creates an impressive look on the hand, while the distinctive split shank adds structure and sophistication. A double prong setting frames the center stone beautifully, giving the design a refined and confident silhouette.

5 Carat Elongated Cushion: A substantial center diamond designed for women seeking a bold, larger stone presence.
IGI Certified Lab Grown Diamond: An IGI certified center stone offering exceptional presence with an eco friendly diamond choice.

Crafted with an IGI certified lab grown diamond, this ring features an elongated 5 carat cushion cut center with round pave set side diamonds. Finished in yellow gold, it combines impressive diamond presence with eco friendly diamond craftsmanship.

The split shank design enhances the overall presence of this ring, making it especially suited for women who are looking for a larger center stone with a noticeable presence on the hand. The 5 carat elongated cushion cut diamond remains the focal point, while the round pave side diamonds add extra sparkle and detail. Designed as an engagement or promise ring, it offers a bold choice for a meaningful proposal or milestone.

Keep It Away From Chemicals: Keep your jewelry away from perfumes, lotions, chlorine and harsh cleaners. Let skincare dry before wearing your piece.

Clean Gently: Clean with warm water, mild soap and a soft cloth. Avoid abrasive cleaners that can scratch the metal or dull the finish.

Store It Separately: Store each piece in a soft pouch or lined box to help prevent scratches, tangling and contact with other jewelry.

Remove Before Activities: Remove jewelry before swimming, showering, exercising or sleeping to help protect the metal, setting and your moissanite or lab grown diamond.