A loose prong or a stone that has fallen out is alarming — but it's a fixable problem. Here's exactly what to do if your moissanite prong is loose or your stone has come out of its setting.
Step 1: Stop Wearing the Ring Immediately
If you notice a loose prong, stop wearing the ring right away. A loose prong means the stone is not fully secured — continued wear risks losing the stone entirely. Place the ring in a safe container and don't wear it until it's been repaired.
If the stone has already fallen out, keep the stone and the setting together. Moissanite is durable (9.25 Mohs hardness) and unlikely to be damaged from a fall, but inspect it carefully for any chips or cracks before handing it to a jeweler.
Step 2: Find a Qualified Jeweler
Prong repair is a standard jewelry service available at most independent jewelers and jewelry repair shops. You do not need to go to a specialist moissanite jeweler — any competent bench jeweler can retip or rebuild a prong and reset a stone.
When selecting a jeweler, ask specifically about their experience with prong repair and stone resetting. A reputable jeweler will examine the ring under magnification before and after the repair. Read more: How to Explain Moissanite to Your Jeweler.
What the Repair Involves
Prong retipping: If the prong is worn down or slightly loose, the jeweler adds metal to the tip of the prong and reshapes it to secure the stone. This is the most common and least expensive prong repair. Cost: typically $20–60 per prong.
Prong rebuilding: If the prong is severely damaged or broken, the jeweler rebuilds it from scratch. More involved than retipping but still a standard repair. Cost: typically $40–100 per prong.
Stone resetting: If the stone has fallen out, the jeweler resets it in the existing setting (assuming the setting is undamaged). Cost: typically $30–80 for a standard reset.
Why Do Prongs Become Loose?
Prongs can loosen over time from normal wear — contact with hard surfaces, catching on fabric, or simply metal fatigue from years of daily wear. This is normal and expected for any ring worn daily over many years. Most jewelers recommend having prongs inspected annually and retipped every 5–10 years as preventive maintenance.
Prongs can also loosen from a single impact — hitting the ring hard against a surface. Read more: What Happens If You Hit a Moissanite Ring Hard?
Does Our Warranty Cover This?
The Moissanite Shine Lifetime Gemstone Warranty covers defects in the moissanite stone itself. Prong wear and loosening from normal use is considered normal wear and tear rather than a manufacturing defect, and is typically not covered under gemstone warranties. However, if a prong fails prematurely due to a manufacturing defect in the setting, contact our team to discuss your situation.
How to Prevent Prong Problems
• Have your ring inspected by a jeweler annually — prong tightening is inexpensive when caught early
• Remove your ring before activities that involve heavy impact (gym, sports, manual work)
• Avoid catching the ring on fabric, which can bend prongs over time
• Consider a bezel or channel setting for your next ring if you have an active lifestyle — these settings fully enclose the stone and eliminate prong concerns. Read more: Moissanite Ring Settings Guide.
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Related guides:
What Happens If You Hit a Moissanite Ring Hard?
Moissanite Ring Settings Guide
How to Explain Moissanite to Your Jeweler
How to Resize a Moissanite Ring
Moissanite Care Guide