12 Carat Lab-Grown Blue Sapphire Oval Studs with Argentium® Silver Earring Jacket Set

Bring warmth and sophistication to your look with these 12 carat total weight lab-grown blue sapphire oval studs. Each earring features a brilliant, eye-clean 6 carat AGTA lab-grown blue sapphire, hand-set in traditional sterling and paired with elegant oval Argentium® silver hoop earring jackets. The jackets are detachable—perfect for styling versatility at shows or in everyday wear.

About Lab-Grown Blue Sapphire

Lab-grown blue sapphires are real sapphires—chemically, optically, and physically identical to natural ones—but created in a controlled lab environment rather than formed in the earth over millions of years. They offer exceptional brilliance and durability, making them a stunning and ethical alternative for modern fine jewelry. Their icy-blue clarity and radiant sparkle pair beautifully with minimalist luxury and timeless elegance.

Key Features

• Gemstones: AGTA-certified lab-grown blue sapphire, approx. 12 mm × 10 mm, total 12 carats
• Earring jacket metal: Argentium® silver — nickel-free, known for tarnish-resistant properties, beautifully bright
• Stud mounting + backs: Traditional sterling
• Comfort: Lightweight for all-day wear
• Versatility: Wear the studs alone, or add the oval hoop jackets for texture and flair
• Handmade in California: Crafted thoughtfully in artist Lisa Ramos’ Clayton studio

For gemstone size review: Millimeter (mm) to carat weight size conversion chart

Why You’ll Love Them

These lab-grown blue sapphire earrings radiate timeless elegance and modern versatility. Known for their clarity, brilliance, and strength, blue sapphires are cherished for symbolizing wisdom, purity, and strength. The luminous sparkle pairs beautifully with the refined oval shape—flattering on many face shapes. With a striking 12-carat total weight, this design makes a confident, understated statement that transitions effortlessly from day to evening.

Video: The Handmade Process — Making Earring Jackets

THE HANDMADE PROCESS

This classic earring style is handcrafted personally by artist Lisa Ramos in her Clayton, California studio. Lisa’s design philosophy is focused on creating high quality jewelry pieces you can wear for years to come.

What makes a MONOLISA jewelry piece unique? Each earring jacket is one of a kind and not casted for mass production. The handmade design is an extensive process of sawing metal pieces, hand sculpting, soldering, hammering, texturing, sanding, buffing, multiple hours of heat hardening the Argentium silver to increase tarnish resistance properties, stone setting, and polishing. MONOLISA pieces are not mass produced or sold in retail stores and can only be purchased on this website or at a show. The MONOLISA Jewelry Collection has been featured at fine art juried shows in California.

What Is the Meaning of Sapphire?

Sapphire is one of the birthstones for September. In ancient times, some believed that the sky itself was an enormous sapphire into which the Earth was embedded. In folklore, sapphires are credited as being sacred and associated with wisdom, prophecy, and divine favor. Sapphire is both the modern and traditional birthstone for September. For more birthstone info, see: Birthstone colors & meanings .

Argentium® Silver Earring Jackets

Argentium silver is used to design this handmade jewelry piece. Argentium silver contains 94.0% pure silver and is more pure than sterling silver. It is seven times more tarnish resistant than traditional sterling silver, is nickel-free, and has a brighter, whiter finish. The Argentium silver MONOLISA uses is made in the USA and ethically sourced. To learn more, read: What is Argentium Silver?

Traditional Sterling — Basket Earring Setting

MONOLISA uses traditional sterling silver (90% pure silver mixed with alloys) to add strength and durability. Sterling silver will not wear down as silver plating can and is known for being hypoallergenic. The sterling material is made in the USA.

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