Sunday Aug 23 4pm Auction on Aug 23, 2026 by California Gemstones in CA
6.00 Carat --- Natural Brazilian Green Tourmaline--- Trillion Cut
5.00 Carat ---- Natural Ceylon Pink Sapphire ---- Oval Cut
5.80 Carat --- Natural Mozambique Green Tourmaline--- Emerald Cut
Starts on:
Oceanside, CA, United States
Auction Details

Sunday Aug 23 4pm

Colored Gemstones!!
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11 days 4 hrs 4 mins 54 secs 
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6.00 Carat --- Natural Brazilian Green Tourmaline--- Trillion Cut: A modern gemstone, showcasing vibrant color and high brilliance due to its triangular, faceted design. Trillion cuts feature three equal sides and can have pointed corners, designed to maximize light
Est.
US$8,000
-
US$9,000
US$30
FEATURED
5.00 Carat ---- Natural Ceylon Pink Sapphire ---- Oval Cut: An exceptional high-impact gemstone. Sourced from Ceylon, a stone of this size and cut features a brilliant facet pattern, maximizing sparkle. This stone exhibits vibrant pink intense hues. Featuring
Est.
US$5,000
-
US$7,000
US$30
8.5 Carat --- Natural Zambian Emerald --- Oval Cut: With a brilliant oval cut is a high-clarity, and deeply colored gemstone. Zambian emeralds are known for having fewer inclusions and a cooler, more bluish-green tone compared to Colombian varieties,
Est.
US$8,000
-
US$9,000
US$30
(1 bid)
7.80 Carat --- Merelani Hills Blue Tanzanite -- Cushion Cut: An investment-grade gemstone. At this size, it typically showcases a vivid blue-violet hue, strong fire, and remarkable brilliance. The cushion cut—a square or rectangular shape with rounded
Est.
US$7,000
-
US$8,000
US$30
(1 bid)
5.90 Carat --- Natural Tanzanian Green Sapphire -- Cushion Cut: An investment-grade, loose gemstone featuring a timeless Cushion Cut. Sourced exclusively from the foothills of Mount Kilimanjaro in Tanzania, this rare gem showcases an extraordinary play of light
Est.
US$17,000
-
US$18,000
US$30
(1 bid)
FEATURED
5.80 Carat --- Natural Mozambique Green Tourmaline--- Emerald Cut: An elegant emerald shape delivers an intense, vibrant green hue with strong brilliance. Mozambique is renowned for producing tourmalines with exceptional clarity, rich saturation, and stunning light
Est.
US$6,000
-
US$8,000
US$30
4 Carat --- Natural Ceylon Blue Sapphire ---- Trillion Cut: Combining the prestigious, bright "royal" blue hues typical of Sri Lankan mines with a modern, brilliant, triangular facet pattern.
Est.
US$9,200
-
US$11,500
US$30
12.10 Carat ----Natural Ceylon Pink Sapphire --- Oval Cut: An eye-catching gemstone. Weighing roughly 2.4 grams, this substantial stone makes a dramatic centerpiece for high-end, custom jewelry like statement cocktail rings or grand pendant
Est.
US$26,000
-
US$28,000
US$30
6.30 Carat ---- Natural Cobalt Blue Spinel ---- Cushion Cut: An investment-grade gemstone from Sri Lanka. Featuring a classic cushion cut, it exhibits a brilliant, lively blend of cobalt blue hues. Renowned for its natural, unheated state, it is highly sought
Est.
US$17,000
-
US$19,000
US$30
10.9 Carat ---- Natural Tourmaline --- Pear Cut: An investment-grade gemstone from Sri Lanka. Featuring a classic cushion cut, it exhibits a brilliant, lively blend of cobalt blue hues. Renowned for its natural, unheated state, it is highly sought
Est.
US$10,000
-
US$12,000
US$30
10.9 Carat ---- Natural Tourmaline --- Pear Cut: An investment-grade gemstone from Sri Lanka. Featuring a classic cushion cut, it exhibits a brilliant, lively blend of cobalt blue hues. Renowned for its natural, unheated state, it is highly sought
Est.
US$10,000
-
US$12,000
US$30
5.00 Carat ---- Natural Ceylon Pink Sapphire ---- Oval Cut: High-value gemstone, often featuring vibrant, velvety pink tones and excellent clarity. This "mixed brilliant" cut maximizes sparkle while offering a flattering, elongated look on the finger.
Est.
US$13,000
-
US$14,000
US$30
5.00 Carat ---- Natural Ceylon Pink Sapphire ---- Oval Cut-: 5.00 Carat ---- Natural Ceylon Pink Sapphire ---- Oval Cut-
Est.
US$15,000
-
US$19,000
US$30
11.65 Carat ---- Natural Ceylon Pink Sapphire ---- Oval Cut: 11.65 Carat ---- Natural Ceylon Pink Sapphire ---- Oval Cut
Est.
US$13,000
-
US$14,000
US$30
9.45 Carat ---- Green Sapphire ---- Emerald Step Cut: A monumental, museum-quality gemstone. Combining the rich hues of natural corundum with a sophisticated geometric facet style, this rare specimen offers exceptional everyday durability and striking
Est.
US$12,000
-
US$14,000
US$30