Opal Rings

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4.20 Carat Swiss Blue Topaz Asscher Cut: a vibrant, electric blue color paired with geometric step facets that create a striking "hall-of-mirrors" optical effect. Step cuts emphasize clarity and linear reflections rather than fiery sparkle.

2026

4.20 Carat Swiss Blue Topaz Asscher Cut

Oceanside, CA

California Gemstones

4.2

(25)

9.50 Carat Green Tsavorite Garnet Asscher Cut: 9.50 Carat Natural Green Tsavorite Garnet styled in an Asscher cut. This gemstone is highly sought after due to its impressive carat weight, step-cut elegance, and striking natural color.

2026

9.50 Carat Green Tsavorite Garnet Asscher Cut

Oceanside, CA

California Gemstones

4.2

(25)

10.00 Carat Natural Cornflower Blue Sapphire Brilliant Round Cut: A breathtaking 10.00 carat natural cornflower blue sapphire. Masterfully fashioned into a brilliant round cut, this investment-grade gemstone showcases a highly coveted, vibrant medium-blue hue that e

2026

10.00 Carat Natural Cornflower Blue Sapphire Brilliant Round Cut

Oceanside, CA

California Gemstones

4.2

(25)

10.50 Carat Natural Ruby Radiant Cut: featuring a timeless Cushion Cut that expertly balances vintage romance with magnificent color depth. Sourced from the exclusive foothills of Mount Kilimanjaro in Tanzania, this gemstone is highly cov

2026

10.50 Carat Natural Ruby Radiant Cut

Oceanside, CA

California Gemstones

4.2

(25)

9.75 Carat Purple Tanzanite Oval Cut: a 9.75-carat specimen is inherently scarce. Jewelers often cut raw tanzanite to favor the purple/violet axis because it preserves more of the original rough gemstone weight compared to chasing a pure

2026

9.75 Carat Purple Tanzanite Oval Cut

Oceanside, CA

California Gemstones

4.2

(25)

9.65 Carat Natural Blue Sapphire Pear Cut: A collector-grade loose gemstone or centerpiece due to its large carat weight and classic teardrop silhouette.

2026

9.65 Carat Natural Blue Sapphire Pear Cut

Oceanside, CA

California Gemstones

4.2

(25)

9.00 Carat Natural Ceylon Blue Sapphire Mixed Cushion Cut: Featuring a soft rectangular or square shape with brilliant-cut crown facets and step-cut pavilion facets. Mixed cushion cut, which blends brilliant and step-cutting styles to maximize sparkle and dep

2026

9.00 Carat Natural Ceylon Blue Sapphire Mixed Cushion Cut

Oceanside, CA

California Gemstones

4.2

(25)

9.50 Carat ---- Natural Tanzanite ---- Trillion Cut: A collector's gem, showcasing a "geometrical wonder" of intense color and brilliance. Flawless clarity.

2026

9.50 Carat ---- Natural Tanzanite ---- Trillion Cut

Oceanside, CA

California Gemstones

4.2

(25)

9.6 Carat ---- Natural Ceylon Sapphire ----Pear Cut: A masterpiece of nature, displaying a captivating blend of prestige and timeless elegance. Sourced from the historic and world-renowned mines of Ceylon (Sri Lanka), this rare, investment-grade collect

2026

9.6 Carat ---- Natural Ceylon Sapphire ----Pear Cut

Oceanside, CA

California Gemstones

4.2

(25)

DESIGNER DAVID YURMAN 18K Y.G. & STERLING SILVER CROSS OVER RING: Signed inside ring.

2026

DESIGNER DAVID YURMAN 18K Y.G. & STERLING SILVER CROSS OVER RING

Ortonville, MI

Chamberlain's Auction Galleries

4.4

(55)

8.00 Carat ---- Natural Pink Sapphire---- Oval Cut: This stone serves as a bold, luxurious centerpiece for high-end fine jewelry, such as engagement rings or statement pendants.

2026

8.00 Carat ---- Natural Pink Sapphire---- Oval Cut

Oceanside, CA

California Gemstones

4.2

(25)

9.90 Carat ---- Red Ruby ---- Oval Cut: A luxurious, and collector-grade loose gemstone or centerpiece for high-end jewelry. A ruby of nearly 10 carats is exceptionally rare in nature, and the classic oval shape is highly favored because it

2026

9.90 Carat ---- Red Ruby ---- Oval Cut

Oceanside, CA

California Gemstones

4.2

(25)

10.00 Carat Padparadscha Sapphire Mixed Cushion Cut: A prestigious luxury gemstone. True Padparadscha sapphires are among the scarcest gems on Earth, and finding a natural, high-quality specimen weighing a monumental 10.00 carats places it firmly in the

2026

10.00 Carat Padparadscha Sapphire Mixed Cushion Cut

Oceanside, CA

California Gemstones

4.2

(25)

9.70 Carat Natural Purple Tanzanite Cushion Cut: featuring a timeless Cushion Cut that expertly balances vintage romance with magnificent color depth. Sourced from the exclusive foothills of Mount Kilimanjaro in Tanzania, this gemstone is highly cov

2026

9.70 Carat Natural Purple Tanzanite Cushion Cut

Oceanside, CA

California Gemstones

4.2

(25)

4.55 Carat Natural Tanzanite Brilliant Oval Cut: a premium, investment-grade loose gemstone highly valued for its generous carat weight, exceptional light performance, and exotic origin. Because natural tanzanite is found in only one place on earth�

2026

4.55 Carat Natural Tanzanite Brilliant Oval Cut

Oceanside, CA

California Gemstones

4.2

(25)

DESIGNER JAI BY JOHN HARDY 14K Y.G. & STERLING SILVER "LOTUS PETAL" TEAR DROP RING: Signed inside ring. Size 8.

2026

DESIGNER JAI BY JOHN HARDY 14K Y.G. & STERLING SILVER "LOTUS PETAL" TEAR DROP RING

Ortonville, MI

Chamberlain's Auction Galleries

4.4

(55)

2.90 Carat Natural Montana Green Sapphire Brilliant Oval Cut: Montana green sapphires typically display unique pastel, sage, or minty shades, often with subtle blue, yellow, or teal undertones. They are famous for their pleochroism, meaning they gracefully shift

2026

2.90 Carat Natural Montana Green Sapphire Brilliant Oval Cut

Oceanside, CA

California Gemstones

4.2

(25)

15.5 Carat ---- Natural Cambodian Pink Zircon -- Oval Cut: a highly brilliant and substantial specimen, perfect for custom high-end jewelry such as a statement pendant or cocktail ring. Sourced from the world-renowned gem fields of Cambodia, this natural zirc

2026

15.5 Carat ---- Natural Cambodian Pink Zircon -- Oval Cut

Oceanside, CA

California Gemstones

4.2

(25)

10.05 Carat ---Brazilian Teal Tourmaline --- Trillion Cut: A striking, substantial gemstone. Featuring a modern, highly brilliant trillion (triangular) cut and an eye-catching blue-green "teal" hue, it is ideal for a bold, statement ring or an exquisite penda

2026

10.05 Carat ---Brazilian Teal Tourmaline --- Trillion Cut

Oceanside, CA

California Gemstones

4.2

(25)

9.65 Carat Natural Blue Sapphire Pear Cut: A museum-caliber investment gemstone. This specific combination of a significant carat weight, natural origin, and a modern brilliant cutting style yields a highly coveted asset in the world of high j

2026

9.65 Carat Natural Blue Sapphire Pear Cut

Oceanside, CA

California Gemstones

4.2

(25)

8.95 Carat Natural Blue Sapphire Emerald Step Cut: premium-grade loose gemstone renowned for its significant carat weight, deep saturated color, and sophisticated geometric faceting.

2026

8.95 Carat Natural Blue Sapphire Emerald Step Cut

Oceanside, CA

California Gemstones

4.2

(25)

10.20 Carat Blue Tanzanite Cushion Cut: a large, rare, and valuable gemstone typically displaying a rich blue-to-violet color saturation. Deep blue or a mix of blue and violet, with top-grade specimens showing high saturation.

2026

10.20 Carat Blue Tanzanite Cushion Cut

Oceanside, CA

California Gemstones

4.2

(25)

8.85 Carat ----Natural Ceylon Pink Sapphire----- Cushion Cut: Ceylon pink sapphire with a cushion cut is a rare, large loose gemstone originating from Sri Lanka, featuring a vibrant pink hue, transparent clarity, and rounded rectangular facets

2026

8.85 Carat ----Natural Ceylon Pink Sapphire----- Cushion Cut

Oceanside, CA

California Gemstones

4.2

(25)

Pair of Vintage Sterling Silver Thailand Scroll Basketweave Rings Sz 8.25 10 .925 10.71g: A very nice pair of vintage Sterling Silver rings. The first having a scroll type design in a size of 8.25. The marking is hard to read but appears to just be a 925. The basket weave ring is size 10 a

2026

Pair of Vintage Sterling Silver Thailand Scroll Basketweave Rings Sz 8.25 10 .925 10.71g

Sun Prarie, WI

Sphere Auctions LLC

4.5

(199)

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24

Rings Auctions

Natural Citrine Gemstone & Lab Grown Diamonds Silver Ring

Lab Grown Emerald Gemstone 92.5 Sterling Silver Ring

Natural Amethyst Gemstone 92.5 Sterling Silver Ring

Fine Gemstone & Diamond Silver Rings

Siddhi Gems & Jewels

Starts on:

Jaipur, Rajasthan, IN

22 hrs Left

Murano Glass Millefiori Dangle Earrings Multicolor - Sterling Silver

Murano Glass Ring In Domed Design - Purple Gold

Murano Glass Avventurina Rectangular Cufflinks - Navy Blue

Murano Glass Jewelry - Earrings, Rings & More

Glass of Venice

Starts on:

Glen Rock, NJ, US

8 Carat Emerald Cut Certified D VVS1 Lab Grown Diamond in 14KT Solid White Gold Engagement Ring

5.5 Carat Cushion Cut Certified D VVS1 Lab Grown Diamond in 14KT Solid Rose Gold Engagement Ring

5 Carat Radiant Cut Certified D VVS1 Lab Grown Diamond in 14KT Solid Yellow Gold Engagement Ring

Premium Lab Grown Diamond Jewelry

Starts on:

Delhi, Delhi, IN

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