Gem Rock Auctions

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Natural & Untreated Blue Sapphire weighing 3.74 ct with SSEF, Gubelin & GRS certificates  Gemstone..... Natural Blue Sapphire  Stone ID..... R13261  Carat Weight..... 3.74 Carats  Measurements..... 7.84 x 7.01 x 7.88 mm  Shape..... Oval  Cutting Style..... Faceted  Color..... Intense Cornflower Blue  Transparency..... Transparent  Clarity..... SI2 (minor to moderate eye-visible inclusions)  Origin..... Kashmir (India)  Treatment..... Not Heated. Not Treated. Not Enhanced.  Certification.....SSEF Kashmir Sapphire, Kashmir India, Padparadscha Sapphire, Green Oval, Bluish Green, Natural Blue Sapphire, Sapphire Stone, Cornflower Blue, Yellow Sapphire
Blue Sapphire, 3.74ct - Mined in Kashmir | Certified by SSEF, Gubelin, AGL
Natural & Untreated Blue Sapphire weighing 3.74 ct with SSEF, Gubelin & GRS certificates Gemstone..... Natural Blue Sapphire Stone ID..... R13261 Carat Weight..... 3.74 Carats Measurements..... 7.84 x 7.01 x 7.88 mm Shape..... Oval Cutting Style..... Faceted Color..... Intense Cornflower Blue Transparency..... Transparent Clarity..... SI2 (minor to moderate eye-visible inclusions) Origin..... Kashmir (India) Treatment..... Not Heated. Not Treated. Not Enhanced. Certification.....SSEF
This stunning 3.78-carat natural & unheated/untreated ruby from Burma (Myanmar) has a glorious pinkish-red color, with a tone that can be described as vivid and electric. The high level of clarity and radiance will leave you spellbound. The brilliant-cut facets on the crown of the stone's oval shape, coupled with the step-cut facets on the pavilion, create a captivating combination of rosy shades, like the fragrant flower unfurling new petals against old ones. Mogok, Nature, Burma Myanmar, The Pavilion, Pinkish Red, Step Cut, Fragrant Flowers, Old Ones, High Level
3.78 Ct. Ruby | Mined in Burma | Certified by GRS & GII |
This stunning 3.78-carat natural & unheated/untreated ruby from Burma (Myanmar) has a glorious pinkish-red color, with a tone that can be described as vivid and electric. The high level of clarity and radiance will leave you spellbound. The brilliant-cut facets on the crown of the stone's oval shape, coupled with the step-cut facets on the pavilion, create a captivating combination of rosy shades, like the fragrant flower unfurling new petals against old ones.
This stunning 3.78-carat natural & unheated/untreated ruby from Burma (Myanmar) has a glorious pinkish-red color, with a tone that can be described as vivid and electric. The high level of clarity and radiance will leave you spellbound. The brilliant-cut facets on the crown of the stone's oval shape, coupled with the step-cut facets on the pavilion, create a captivating combination of rosy shades, like the fragrant flower unfurling new petals against old ones.
3.78 Ct. Ruby | Mined in Burma | Certified by GRS & GII |
This stunning 3.78-carat natural & unheated/untreated ruby from Burma (Myanmar) has a glorious pinkish-red color, with a tone that can be described as vivid and electric. The high level of clarity and radiance will leave you spellbound. The brilliant-cut facets on the crown of the stone's oval shape, coupled with the step-cut facets on the pavilion, create a captivating combination of rosy shades, like the fragrant flower unfurling new petals against old ones.
Gemstone, Origin & Treatments Species: Natural Corundum Gemstone & Variety: Natural Blue Sapphire Geographic Origin: Ceylon (Sri Lanka) Treatments: No Treatments (Unheated/Untreated) Weight, Measurements & Shape Weight: 9.89 carats Measurements (L x W x H): 10.58 x 10.36 x 9.66 mm Type of Cutting: Faceted Shape: Square Cushion Color Intensity of Color: Intense to Vivid Shade: Blue Color Award: "Cornflower Blue" Lotus, Ceylon Sri Lanka, Sri Lanka, Blue Sapphire, Sapphire, Square, Blue
9.89 Ct. Blue Sapphire | Mined in Sri Lanka | Certified By GRS & Lotus
Gemstone, Origin & Treatments Species: Natural Corundum Gemstone & Variety: Natural Blue Sapphire Geographic Origin: Ceylon (Sri Lanka) Treatments: No Treatments (Unheated/Untreated) Weight, Measurements & Shape Weight: 9.89 carats Measurements (L x W x H): 10.58 x 10.36 x 9.66 mm Type of Cutting: Faceted Shape: Square Cushion Color Intensity of Color: Intense to Vivid Shade: Blue Color Award: "Cornflower Blue"
an emerald green diamond on a white background
3.88 Ct. Emerald | Mined in Zambia | Near Loupe-Clean | "Bottle Green"
Weight, Measurements & Shape Weight: 3.88 carats Measurements (L x W x H): 9.47 x 9.29 x 7.01 mm Type of Cutting: Faceted Shape: Rectangular Octagon - Emerald Cut / Step Cut Color Intensity of Color: Vivid to Deep Shade: Green Color Award: "Bottle Green" Transparency & Clarity Transparency: Transparent Clarity grade: Near Loupe-Clean Clarity description: This stone is completely free from eye-visible inclusions, and minute inclusions are barely visible under 10x magnification
a blue diamond with the words grs on it
5.03 Ct. Blue Sapphire | Mined in Madagascar | Certified By GRS
Gemstone, Origin & Treatments Species: Natural Corundum Gemstone & Variety: Natural Blue Sapphire Geographic Origin: Madagascar Treatments: No Treatments (Unheated/Untreated)
Gemstone, Origin & Treatments Species: Natural Corundum Gemstone & Variety: Natural Yellow Sapphire Geographic Origin: Ceylon (Sri Lanka) Treatments: No Treatments (Unheated/Untreated) Weight, Measurements & Shape Weight: 3.33 carats Measurements (L x W x H): 8.94 x 8.82 x 5.32 mm Type of Cutting: Faceted Shape: Round Yellow
3.33 Ct. Yellow Sapphire | Mined in Sri Lanka | Unheated | Near Loupe-Clean
Gemstone, Origin & Treatments Species: Natural Corundum Gemstone & Variety: Natural Yellow Sapphire Geographic Origin: Ceylon (Sri Lanka) Treatments: No Treatments (Unheated/Untreated) Weight, Measurements & Shape Weight: 3.33 carats Measurements (L x W x H): 8.94 x 8.82 x 5.32 mm Type of Cutting: Faceted Shape: Round
Gemstone, Origin & Treatments Species: Natural Corundum Gemstone & Variety: Natural Blue Sapphire Treatments: No Treatments (Unheated/Untreated) Weight, Measurements & Shape Weight: 4.17 carats Measurements (L x W x H): 9.53 x 7.38 x 5.94 mm Type of Cutting: Faceted Shape: Rectangular Cushion Color Intensity of Color: Vivid to Deep Shade: Blue Color Award: "Royal Blue" Transparency & Clarity Transparency: Transparent Clarity grade: Eye-Clean Rectangular Cushion, Royal Blue, Blue Color
4.17 Ct. Blue Sapphire | Mined in Kashmir | Certified By SSEF | "Rare Find"
Gemstone, Origin & Treatments Species: Natural Corundum Gemstone & Variety: Natural Blue Sapphire Treatments: No Treatments (Unheated/Untreated) Weight, Measurements & Shape Weight: 4.17 carats Measurements (L x W x H): 9.53 x 7.38 x 5.94 mm Type of Cutting: Faceted Shape: Rectangular Cushion Color Intensity of Color: Vivid to Deep Shade: Blue Color Award: "Royal Blue" Transparency & Clarity Transparency: Transparent Clarity grade: Eye-Clean
a pink diamond with the words grs on it and an image of its side
2.16 Ct. Ruby | Mined in Mozambique | Certified By GRS | "Exceptional"
Gemstone, Origin & Treatments Species: Natural Corundum Gemstone & Variety: Natural Ruby Geographic Origin: Nampula - Mozambique Treatments: No Treatments (Unheated/Untreated) Weight, Measurements & Shape Weight: 2.16 carats Measurements (L x W x H): 7.04 x 6.89 x 4.94 mm Type of Cutting: Faceted Shape: Square Cushion Color Intensity of Color: Vivid to Deep Shade: Purplish Pinkish Red
a red diamond is shown with the words grs on it's left side
6.03 Ct. Ruby | Mined in Mozambique | Certified By GRS & GIA | "Rare Find"
Gemstone, Origin & Treatments Species: Natural Corundum Gemstone & Variety: Natural Ruby Geographic Origin: Montepuez - Mozambique Treatments: No Treatments (Unheated/Untreated) Weight, Measurements & Shape Weight: 6.03 carats Measurements (L x W x H): 12.63 x 9.09 x 5.47 mm Type of Cutting: Faceted Shape: Oval Color Intensity of Color: Vivid to Deep Shade: Red Color Award: "Pigeon Blood Red"
an image of a green diamond with the words ssef on it and in front of it
6.06 Ct. Alexandrite | Mined in Sri Lanka | Certified By SSEF | "Rare Find"
Gemstone, Origin & Treatments Species: Natural Chrysoberyl Gemstone & Variety: Alexandrite Geographic Origin: Ceylon (Sri Lanka) Treatments: No Treatments (Unheated/Untreated) Weight, Measurements & Shape Weight: 6.06 carats Measurements (L x W x H): 12.05 x 9.64 x 7.04 mm Type of Cutting: Faceted Shape: Oval Color Intensity of Color: Vivid to Deep Shade: Brownish Green (daylight) changing to Purplish Red (incandescent light)
Natural & Untreated Blue Sapphire weighing 4.56 ct with GRS certificate  Gemstone..... Natural Blue Sapphire  Stone ID..... R15104Q  Carat Weight..... 4.56 Carats  Measurements..... 9.17 x 7.71 x 6.83 mm  Shape..... Cushion  Cutting Style..... Faceted  Color..... Fiery Rich Royal Blue (Ink Blue)  Transparency..... Transparent  Clarity..... VS1 (minute inclusions visible under 10x magnification)  Origin..... Madagascar  Treatment..... Not Heated. Not Treated. Not Enhanced.  Certification..... GRS Amigurumi Patterns, Polished Gemstones, Old Trees, Ink Blue, Minerals And Gemstones, Gem Stones
Blue Sapphire, 4.56ct - Mined in Madagascar | Certified by GRS
Natural & Untreated Blue Sapphire weighing 4.56 ct with GRS certificate Gemstone..... Natural Blue Sapphire Stone ID..... R15104Q Carat Weight..... 4.56 Carats Measurements..... 9.17 x 7.71 x 6.83 mm Shape..... Cushion Cutting Style..... Faceted Color..... Fiery Rich Royal Blue (Ink Blue) Transparency..... Transparent Clarity..... VS1 (minute inclusions visible under 10x magnification) Origin..... Madagascar Treatment..... Not Heated. Not Treated. Not Enhanced. Certification..... GRS
a close up of a blue object on a white surface with light shining through it
Blue Star Sapphire, 5.59ct - Mined in Sri Lanka | Certified by GRS
Natural & Untreated Blue Star Sapphire weighing 5.59 ct with GRS certificate Gemstone..... Natural Blue Star Sapphire Stone ID..... R13421 Carat Weight..... 5.59 Carats Measurements..... 8.98 x 8.87 x 6.32 mm Shape..... Round Cutting Style..... Cabochon Color..... Royal Blue Transparency..... Milky-Transparent Star Sharpness..... Very Clearly Visible 6-Ray Star (Super Sharp) Origin..... Ceylon (Sri Lanka) Treatment..... Not Heated. Not Treated. Not Enhanced. Certification..... GRS
Pair of Natural Emeralds weighing a total of 9.14 ct with GRS certificate  Gemstone….. Natural Emeralds  Stone ID….. R13324WA / R13324WB  Total Carat Weight….. 9.14 Carats  Individual Carat Weights….. A: 4.45 Carats, B: 4.69 Carats  Measurements….. A: 9.95 x 9.85 x 7.15 mm, B: 10.10 x 9.78 x 7.11 mm  Shape….. Emerald Cut / Octagonal  Cutting Style….. Faceted  Color….. Velvety Intense Green  Transparency….. Transparent  Clarity….. SI3 (moderate eye-visible inclusions)  Origin….. Muzo Mines Colombian Emeralds, Macro Lens, Emerald Stone, Natural Emerald, Natural Oils, Semi Precious Gemstones, Jewelry Design
Pair of Emeralds, 9.14ct - Mined in Colombia | Certified by GRS
Pair of Natural Emeralds weighing a total of 9.14 ct with GRS certificate Gemstone….. Natural Emeralds Stone ID….. R13324WA / R13324WB Total Carat Weight….. 9.14 Carats Individual Carat Weights….. A: 4.45 Carats, B: 4.69 Carats Measurements….. A: 9.95 x 9.85 x 7.15 mm, B: 10.10 x 9.78 x 7.11 mm Shape….. Emerald Cut / Octagonal Cutting Style….. Faceted Color….. Velvety Intense Green Transparency….. Transparent Clarity….. SI3 (moderate eye-visible inclusions) Origin….. Muzo Mines
Natural & Untreated Ruby weighing 3.43 ct with IGI certificate  Gemstone..... Natural Ruby  Stone ID..... R13973  Carat Weight..... 3.43 Carats  Measurements..... 9.49 x 7.52 x 5.49 mm  Shape..... Oval  Cutting Style..... Faceted  Color..... Rich Velvety Pink Red  Transparency..... Transparent  Clarity..... SI2 (very minute eye-visible inclusions)  Origin..... Afghanistan  Treatment..... Not Heated. Not Treated. Not Enhanced.  Certification..... IGI certificate Blood Red Color, Clean Origin, Green Garnet, Ruby Stone, Star Ruby, Ruby Gemstone
Ruby, 3.43ct - Mined in Afghanistan | Certified by IGI
Natural & Untreated Ruby weighing 3.43 ct with IGI certificate Gemstone..... Natural Ruby Stone ID..... R13973 Carat Weight..... 3.43 Carats Measurements..... 9.49 x 7.52 x 5.49 mm Shape..... Oval Cutting Style..... Faceted Color..... Rich Velvety Pink Red Transparency..... Transparent Clarity..... SI2 (very minute eye-visible inclusions) Origin..... Afghanistan Treatment..... Not Heated. Not Treated. Not Enhanced. Certification..... IGI certificate