May 30th 7pm Saturday RUBY-A-THON Auction on May 30, 2026 by California Gemstones in CA
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May 30th 7pm Saturday RUBY-A-THON
10.5 Carat ---- Mogok Pigeon Blood Ruby---- Round Brilliant Cut ----Certified10.50 Carat ---- Red Ruby---- Oval Cut ---- GGI Certified20.0 Carat ---- Mozambique Blood Ruby---- Fancy Lozenge Cut ---- Certified
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San Diego, CA, United States
Auction Details

May 30th 7pm Saturday RUBY-A-THON

California Gemstones

California Gemstones

May 30th 7pm Saturday
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6.25 Carat ---- Mozambique Red Ruby ---- Round Cut ---- GGI Certified: These rubies display intense red to deep red hues. A high-quality ruby of this size, particularly one that is natural, "eye-clean" (without inclusions), and unheated, represents a significant
20008: 6.25 Carat ---- Mozambique Red Ruby ---- Round Cut ---- GGI CertifiedEst.
$18,000
-
$24,000
$250
9 Carat --- Burmese Blood Ruby--- Oval Cushion Cut --- EGL Certified: A Burmese ruby with an oval or cushion cut is an exceptionally rare and highly sought-after gemstone. Known for their glowing "Pigeon’s Blood" color and high clarity, these cuts maximize the
20009: 9 Carat --- Burmese Blood Ruby--- Oval Cushion Cut --- EGL CertifiedEst.
$50,000
-
$64,000
$450
10.78 Carat ---- Mozambique Ruby ---- Emerald Cut ---- EGL Certified: An exceptional gemstone, exhibiting a vivid red color, high transparency, and superior, tailored brilliance. Mozambique rubies are prized for their intense red hues and, in such a size, would
20019: 10.78 Carat ---- Mozambique Ruby ---- Emerald Cut ---- EGL CertifiedEst.
$15,000
-
$20,000
$150
9.60 Carat --- Myanmar Ruby --- Oval Cut --- EGL Certified.: a substantial, large-sized gemstone, typically featuring a rich red to pinkish-red hue and faceted to maximize brilliance and color saturation. Often sourced from Mozambique or Burma, these stones
20024: 9.60 Carat --- Myanmar Ruby --- Oval Cut --- EGL Certified.Est.
$25,000
-
$35,000
$200
4.55 Carat --- Mozambique Raspberry Rhodolite Garnet --- Cushion Cut --- AGSL Certified: This 4.55-carat natural Mozambique Rhodolite Garnet is a vibrant, cushion-cut gemstone featuring a rich raspberry-red to pinkish-purple hue. Originating from Mozambique, this garnet type is known for
20055: 4.55 Carat --- Mozambique Raspberry Rhodolite Garnet --- Cushion Cut --- AGSL CertifiedEst.
$1,500
-
$1,800
$50
10.07 Carat --- Indian Red Ruby --- Oval Cut --- EGL Certified: Prestigious gemstone, characterized by its deep crimson to purplish-red hue and substantial physical presence. Rubies of this weight are considered highly rare and valuable, as most jewelry-quality
20056: 10.07 Carat --- Indian Red Ruby --- Oval Cut --- EGL CertifiedEst.
$5,000
-
$8,000
$150
11 Carat --- Burmese Blood Ruby--- Oval Cushion Cut --- EGL Certified: A Burmese ruby with an oval or cushion cut is an exceptionally rare and highly sought-after gemstone. Known for their glowing "Pigeon’s Blood" color and high clarity, these cuts maximize the
20057: 11 Carat --- Burmese Blood Ruby--- Oval Cushion Cut --- EGL CertifiedEst.
$50,000
-
$64,000
$450
4.55 Carat Mozambique Blood Ruby Oval Cut GGI Certified: A natural, oval-cut Mozambique gemstone showcasing a deep red hue and excellent, eye-clean clarity. This vivid stone is ideal for rings or pendants. Significant investment grade gemstone.
20076: 4.55 Carat Mozambique Blood Ruby Oval Cut GGI CertifiedEst.
$11,500
-
$12,800
$150
12 Carat --- Burmese Blood Ruby--- Oval Cut --- EGL Certified: Loupe Clean. A magnificent gemstone. Originating from Myanmar's legendary Mogok mines, it features a vivid, highly saturated "pigeon blood" red with slight blue undertones. Its classic oval cut
9000: 12 Carat --- Burmese Blood Ruby--- Oval Cut --- EGL CertifiedEst.
$29,000
-
$34,000
$350
FEATURED
10.5 Carat ---- Mogok Pigeon Blood Ruby---- Round Brilliant Cut ----Certified: An exceptional gem, featuring a vivid crimson-red color with intense fluorescence and top-tier clarity. Originating from the world-renowned Mogok Valley in Burma. This large, round-cut stone commands
9001: 10.5 Carat ---- Mogok Pigeon Blood Ruby---- Round Brilliant Cut ----CertifiedEst.
$59,000
-
$65,000
$350
10.0 Carat ---- Burmese Blood Ruby---- Cushion Cut ---- Certified: From the renowned Mogok Valley with a well documented provenance. Characterized by a "pigeon blood" red color, high transparency, and significant clarity. This large, untreated high-clarity stone is
9002: 10.0 Carat ---- Burmese Blood Ruby---- Cushion Cut ---- CertifiedEst.
$39,000
-
$45,000
$250
FEATURED
20.0 Carat ---- Mozambique Blood Ruby---- Fancy Lozenge Cut ---- Certified: Flawless. Mozambique specifically the Montepuez area is known for high-quality, vivid red rubies. Fine-quality Mozambique rubies are increasingly compared to Burmese rubies, showing deep "pigeon's
9003: 20.0 Carat ---- Mozambique Blood Ruby---- Fancy Lozenge Cut ---- CertifiedEst.
$50,000
-
$65,000
$250
FEATURED
1.80 Carat ---- Mogok Pink Ruby---- Oval Cut ---- Certified: a highly desirable gemstone, often featuring the intense, glowing color typical of the famous Burmese region. Mogok rubies are celebrated for their natural fluorescence, which makes them appear to
9004: 1.80 Carat ---- Mogok Pink Ruby---- Oval Cut ---- CertifiedEst.
$5,000
-
$6,500
$80
FEATURED
11.30 Carat ---- Mozambique Ruby---- Pearl Cut ---- Certified: Mozambique rubies are known for their high-quality, often showing vibrant color with natural, unheated, or lightly treated options available, making them desirable for jewelry.
9005: 11.30 Carat ---- Mozambique Ruby---- Pearl Cut ---- CertifiedEst.
$25,000
-
$30,000
$100
10.63 Carat ---- Ruby---- Mixed Cushion Cut ---- IGI Certified Lab Grown: lab-grown ruby with a mixed cushion cut is a substantial, luxurious gemstone produced in a laboratory setting using methods like hydrothermal or flame fusion (Czochralski process). This stone is
9006: 10.63 Carat ---- Ruby---- Mixed Cushion Cut ---- IGI Certified Lab GrownEst.
$1,500
-
$2,500
$40
11.45 Carat ---- Pink Ruby---- Brilliant Round Cut ---- EGL Certified: he Brilliant Round Cut features expertly placed facets designed to maximize light reflection, ensuring high brilliance and excellent clarity. The stone displays a vivid pinkish-red hue. It is
9007: 11.45 Carat ---- Pink Ruby---- Brilliant Round Cut ---- EGL CertifiedEst.
$15,000
-
$25,000
$100
10.00 Carat ---- Ceylon Padparadscha Sapphire---- Fancy Kite Cut ---- EGL Certified: A distinct, delicate mix of pink and orange (often described as lotus or sunrise). The best specimens show a vivid, even blend of both. a sharp, geometric shape. These sapphires are prized for their
9008: 10.00 Carat ---- Ceylon Padparadscha Sapphire---- Fancy Kite Cut ---- EGL CertifiedEst.
$15,000
-
$18,000
$50
(1 bid)
FEATURED
10.50 Carat ---- Red Ruby---- Oval Cut ---- GGI Certified: a significant, high-carat gemstone, often sourced from Mozambique or Burma, featuring a brilliant mixed cut to enhance color intensity. These stones typically possess intense red hues, often
9009: 10.50 Carat ---- Red Ruby---- Oval Cut ---- GGI CertifiedEst.
$15,000
-
$18,000
$100
9.00 Carat ---- Red Ruby---- Hexagon Cut ---- GGI Certified: A geometric gemstone, sourced from Mozambique, characterized by its deep red color, sharp six-sided, faceted shape, and "eye-clean" to translucent clarity. Typically utilized for high-end, modern
9010: 9.00 Carat ---- Red Ruby---- Hexagon Cut ---- GGI CertifiedEst.
$15,000
-
$18,000
$100
10.95 Carat ---- Burmese Red Ruby---- Brilliant Round Cut ---- EGL Certified: As top-quality Burmese rubies over 5 carats are incredibly scarce. Originating from the renowned Mogok Valley in Myanmar, such a stone is celebrated for its deep "pigeon blood" red color, intense
9011: 10.95 Carat ---- Burmese Red Ruby---- Brilliant Round Cut ---- EGL CertifiedEst.
$25,000
-
$30,000
$100
11.06 Carat ---- Burmese Red Ruby---- Emerald Step Cut ---- EGL Certified: Burmese red ruby is an exceptional museum-quality collector's piece. Burmese rubies (especially from Mogok) are treasured for their intense red color and high fluorescence, which gives them a "vivid
9012: 11.06 Carat ---- Burmese Red Ruby---- Emerald Step Cut ---- EGL CertifiedEst.
$55,000
-
$63,000
$100
10.95 Carat ---- Burmese Red Ruby---- Pear Cut ---- EGL Certified: Typically found in high-end, certified, and often heated, listings. Rubies of this size and origin are rare, often categorized as substantial investments or luxury centerpiece stones for jewelry.
9013: 10.95 Carat ---- Burmese Red Ruby---- Pear Cut ---- EGL CertifiedEst.
$55,000
-
$63,000
$100
13.80 Carat ---- Burmese Red Ruby---- Cushion Cut ---- GIR Certified: A top-tier gemstone. Not enhanced-no heat, no treatment. A stone is considered a collector's piece due to its high weight and desired origin.
9014: 13.80 Carat ---- Burmese Red Ruby---- Cushion Cut ---- GIR CertifiedEst.
$55,000
-
$63,000
$100
(1 bid)
6.70 Carat ---- Burmese Red Ruby---- Pear Cut ---- GIR Certified: a significant and rare gemstone, likely originating from the historic Mogok Valley, renowned for producing the world’s finest rubies.
9015: 6.70 Carat ---- Burmese Red Ruby---- Pear Cut ---- GIR CertifiedEst.
$35,000
-
$43,000
$100