Results for “Bi Color Gemstones”

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7.65CT ROUND BI-COLOR SAPPHIRE LOOSE GEMSTONE: 7.65CT round bicolor blue and purple sapphire loose gemstone. Gemstone has been electronically tested and identified, tester does not distinguish between lab grown and natural.Stone Type: SapphireSize

Feb 15, 2026

7.65CT ROUND BI-COLOR SAPPHIRE LOOSE GEMSTONE

Florida Estate Sales Inc.

Est. $200-$10,000

Natural Bi Color Watermelon Tourmaline 7.87 Ct. VVS Octagon Shape 18.8 x 7 Mm. Unheated Gemstone: Product ID: 807239300 Product Name: Natural Tourmaline Weight: 7.87 CT. Size: 18.8 x 7 x 6 MM. Shape: Octagon Color: Watermelon Clarity:VVS Luster: Very Good Gems Origin: Nigeria Treatment: Unheated C

8 hrs Left

Natural Bi Color Watermelon Tourmaline 7.87 Ct. VVS Octagon Shape 18.8 x 7 Mm. Unheated Gemstone

Treasure of Gems & Jewelry

Est. $8,517-$13,384

GRS Certified Faceted Bi Color Sapphire: 21.37 Carat Cushion Cut Gemstone: Title: GRS Certified Faceted Bi Color Sapphire: 21.37 Carat Cushion Cut Gemstone Description: Gemstone: Sapphire GRS Certified Faceted Bi Color Sapphire: 21.37 Carat Cushion Cut Gemstone Weight: 21.37

2026

GRS Certified Faceted Bi Color Sapphire: 21.37 Carat Cushion Cut Gemstone

Chairish Auctions

Est. $54,000-$65,000

Buy Now for $45,000.00

Asst Gemstones, Tri-Color Topaz + More - Garnets, Amethyst, Lapis Lazuli, Blue Bi-Color Topaz,: Asst Gemstones, Tri-Color Topaz + More - Garnets, Amethyst, Lapis Lazuli, Blue Bi-Color Topaz, (3)Tri-Color Topaz

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Asst Gemstones, Tri-Color Topaz + More - Garnets, Amethyst, Lapis Lazuli, Blue Bi-Color Topaz,

A & A Auction Gallery

4.95 Carat Bi-Color Tourmaline Gemstone: Emerald Cut Blue Green Jewel: Title: 4.95 Carat Bi-Color Tourmaline Gemstone: Emerald Cut Blue Green Jewel Description: Highlights Handpicked by GemsStories Supplies for making crafts Materials: Gemstone: Tourmaline Carat weight:

4.95 Carat Bi-Color Tourmaline Gemstone: Emerald Cut Blue Green Jewel

Chairish Auctions

Est. $800-$1,000

$340

Natural Bi Color Tourmaline 4.12 Ct. Octagon Shape 15.3 x 5.7 Mm. Unheated Gemstone From Nigeria: Product ID: 807237840 Product Name: Natural Tourmaline Weight: 4.12 CT. Size: 15.3 x 5.7 x 4.7 MM. Shape: Octagon Color: Bi Color Clarity:VSI Luster: Very Good Gems Origin: Nigeria Treatment: Unheated

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Natural Bi Color Tourmaline 4.12 Ct. Octagon Shape 15.3 x 5.7 Mm. Unheated Gemstone From Nigeria

Treasure of Gems & Jewelry

3,65 Carats Bi Color Tourmaline Gemstone - 15X6X4 mm: 3,65 Carats Bi Color Tourmaline Gemstone - 15X6X4 mm Shipping:

2 days Left

3,65 Carats Bi Color Tourmaline Gemstone - 15X6X4 mm

Fantasy Jewelry

Est. $200-$300

Natural Bi Color Tourmaline 1.49 Ct. Octagon Shape 6.6 x 5.5 Mm. Unheated Gemstone From Nigeria: Product ID: 807244022 Product Name: Natural Tourmaline Weight: 1.49 CT. Size: 6.6 x 5.5 x 4.4 MM. Shape: Octagon Color: Bi Color Clarity:VSI Luster: Good Gems Origin: Nigeria Treatment: Unheated Cryst

8 hrs Left

Natural Bi Color Tourmaline 1.49 Ct. Octagon Shape 6.6 x 5.5 Mm. Unheated Gemstone From Nigeria

Treasure of Gems & Jewelry

Est. $358-$562

Natural Bi Color Tourmaline 2.59 Ct. Octagon Shape 7.7 x 5.8 Mm. Gemstone Unheated From Nigeria: Product ID: 807234217 Product Name: Natural Tourmaline Weight: 2.59 CT. Size: 7.7 x 5.8 x 5.9 MM. Shape: Octagon Color: Bi Color Clarity:SI Luster: Good Gems Origin: Nigeria Treatment: Unheated Crysta

8 hrs Left

Natural Bi Color Tourmaline 2.59 Ct. Octagon Shape 7.7 x 5.8 Mm. Gemstone Unheated From Nigeria

Treasure of Gems & Jewelry

Est. $292-$460

Natural Bi Color Ametrine 14.95 Ct. VVS Octagon Shape 15.6 x 13.6 Mm. Gemstone Unheated From Bolivia: Product ID: 800407320 Product Name: Natural Ametrine Weight: 14.95 CT. Size: 15.6 x 13.6 x 8.5 MM. Shape: Octagon Color: Bi-Color Clarity:VVS Luster: Good Gems Origin: Bolivia Treatment: Unheated Crys

8 hrs Left

Natural Bi Color Ametrine 14.95 Ct. VVS Octagon Shape 15.6 x 13.6 Mm. Gemstone Unheated From Bolivia

Treasure of Gems & Jewelry

Est. $359-$564

Natural Bi Color Ametrine 8.08 Ct. Clean Octagon Millennium Cut 12.7 x 11 Mm. Gemstone: Product ID: 800408005 Product Name: Natural Ametrine Weight: 8.08 CT. Size: 12.7 x 11 x 7.3 MM. Shape: Octagon Millennium Cut Color: Bi Color Clarity:IF Luster: Very Good Gems Origin: Bolivia Treatmen

8 hrs Left

Natural Bi Color Ametrine 8.08 Ct. Clean Octagon Millennium Cut 12.7 x 11 Mm. Gemstone

Treasure of Gems & Jewelry

Est. $349-$549

Natural Bi Color Ametrine 8.47 Ct. Clean Octagon Millennium Cut Shape 12.2 x 11 Mm. Gemstone: Product ID: 800408025 Product Name: Natural Ametrine Weight: 8.47 CT. Size: 12.2 x 11 x 8 MM. Shape: Octagon Millennium Cut Color: Bi Color Clarity:IF Luster: Very Good Gems Origin: Bolivia Treatment:

8 hrs Left

Natural Bi Color Ametrine 8.47 Ct. Clean Octagon Millennium Cut Shape 12.2 x 11 Mm. Gemstone

Treasure of Gems & Jewelry

Est. $366-$575

Natural Bi Color Ametrine 9.15 Ct. VVS Trilliant Shape 13.6 x 13.5 Mm. Gemstone From Bolivia: Product ID: 800407135 Product Name: Natural Ametrine Weight: 9.15 CT. Size: 13.6 x 13.5 x 9.2 MM. Shape: Trilliant Color: Bi-Color Clarity:VVS Luster: Very Good Gems Origin: Bolivia Treatment: Unheate

8 hrs Left

Natural Bi Color Ametrine 9.15 Ct. VVS Trilliant Shape 13.6 x 13.5 Mm. Gemstone From Bolivia

Treasure of Gems & Jewelry

Est. $206-$324

Certified Natural Bi Color Tourmaline 6.79 Ct. Clean Octagon Shape 15.88 x 6.43 Mm Gemstone from: Product ID: 807224367 Product Name: Natural Tourmaline Weight: 6.79 CT. Size: 15.88 x 6.43 x 5.96 MM. Shape: Octagon Color: Blue , Reddish Pink Clarity:IF Luster: Very Good Gems Origin: Nigeria Treatm

Mar 08, 2026

Certified Natural Bi Color Tourmaline 6.79 Ct. Clean Octagon Shape 15.88 x 6.43 Mm Gemstone from

Treasure of Gems & Jewelry

Est. $8,753-$13,755

Natural Bi Color Topaz 5.56 Ct. Octagon Shape 11 x 8.9 Mm Gemstone from Brazil: Product ID: 807169044 Product Name: Natural Topaz Weight: 5.56 CT. Size: 11 x 8.9 x 6.2 MM. Shape: Octagon Color: Bi Color Clarity:VSI Luster: Good Gems Origin: Brazil Treatment: Treated Crystal Struc

Feb 15, 2026

Natural Bi Color Topaz 5.56 Ct. Octagon Shape 11 x 8.9 Mm Gemstone from Brazil

Treasure of Gems & Jewelry

Est. $559-$879

Natural Bi Color Tourmaline 4.57 Ct. Octagon Shape 8.7 x 7.6 Mm. Gemstone Unheated From Nigeria: Product ID: 807238244 Product Name: Natural Tourmaline Weight: 4.57 CT. Size: 8.7 x 7.6 x 6.9 MM. Shape: Octagon Color: Bi Color Clarity:VSI Luster: Very Good Gems Origin: Nigeria Treatment: Unheated

Feb 15, 2026

Natural Bi Color Tourmaline 4.57 Ct. Octagon Shape 8.7 x 7.6 Mm. Gemstone Unheated From Nigeria

Treasure of Gems & Jewelry

Est. $2,230-$3,504

Natural Bi Color Topaz 8.67 Ct. Octagon Shape 14.3 x 10.2 Mm Gemstone from Brazil: Product ID: 807169043 Product Name: Natural Topaz Weight: 8.67 CT. Size: 14.3 x 10.2 x 6.1 MM. Shape: Octagon Color: Bi Color Clarity:VSI Luster: Good Gems Origin: Brazil Treatment: Treated Crystal St

Feb 15, 2026

Natural Bi Color Topaz 8.67 Ct. Octagon Shape 14.3 x 10.2 Mm Gemstone from Brazil

Treasure of Gems & Jewelry

Est. $559-$879

Natural and Rare Oval Bi-color Ametrine Gemstone: Natural and Rare Oval Bi-color Ametrine Gemstone This is a natural and rare bi-color Ametrine in oval facet shape gemstone that measures at 21.65 x 16.57 x 9.93mm. The gemstone was mined in Brazil an

Feb 18, 2026

Natural and Rare Oval Bi-color Ametrine Gemstone

Weatherham Estate Treasures

Est. $500-$700

Natural Bi Color Ametrine 4.81 Ct. Octagon Shape 11 x 10.4 Mm Gemstone from Bolivia: Product ID: 800408575 Product Name: Natural Ametrine Weight: 4.81 CT. Size: 11 x 10.4 x 8.3 MM. Shape: Octagon Color: Bi Color Clarity:VSI Luster: Good Gems Origin: Bolivia Treatment: Unheated Crystal

8 hrs Left

Natural Bi Color Ametrine 4.81 Ct. Octagon Shape 11 x 10.4 Mm Gemstone from Bolivia

Treasure of Gems & Jewelry

Est. $157-$247

Natural Bi Color Tourmaline 3.77 Ct. Octagon Shape 13.2 x 5.5 Mm. Gemstone Unheated From Nigeria: Product ID: 807237829 Product Name: Natural Tourmaline Weight: 3.77 CT. Size: 13.2 x 5.5 x 4.7 MM. Shape: Octagon Color: Bi Color Clarity:VSI Luster: Good Gems Origin: Nigeria Treatment: Unheated Crys

Mar 08, 2026

Natural Bi Color Tourmaline 3.77 Ct. Octagon Shape 13.2 x 5.5 Mm. Gemstone Unheated From Nigeria

Treasure of Gems & Jewelry

Est. $2,452-$3,853

Natural Bi Color Ametrine 5.33 Ct. Clean Octagon Millennium Cut Shape 11 x 10 Mm. Gemstone: Product ID: 800408020 Product Name: Natural Ametrine Weight: 5.33 CT. Size: 11 x 10 x 6.3 MM. Shape: Octagon Millennium Cut Color: Bi Color Clarity:IF Luster: Very Good Gems Origin: Bolivia Treatment:

8 hrs Left

Natural Bi Color Ametrine 5.33 Ct. Clean Octagon Millennium Cut Shape 11 x 10 Mm. Gemstone

Treasure of Gems & Jewelry

Est. $234-$368

Natural Bi Color Ametrine 7.71 Ct. Octagon Concave Cut 12.6 x 11.5 Mm Gemstone From Bolivia: Product ID: 800408542 Product Name: Natural Ametrine Weight: 7.71 CT. Size: 12.6 x 11.5 x 7.3 MM. Shape: Octagon Concave Cut Color: Bi Color Clarity:VVS - VSI Luster: Very Good Gems Origin: Bolivia Tr

8 hrs Left

Natural Bi Color Ametrine 7.71 Ct. Octagon Concave Cut 12.6 x 11.5 Mm Gemstone From Bolivia

Treasure of Gems & Jewelry

Est. $297-$467

Natural Bi Color Ametrine 2.94 Ct. Octagon Shape 9.9 x 7 Mm Gemstone From Bolivia: Product ID: 800408228 Product Name: Natural Ametrine Weight: 2.94 CT. Size: 9.9 x 7 x 5.3 MM. Shape: Octagon Color: Bi Color Clarity:VSI Luster: Good Gems Origin: Bolivia Treatment: Unheated Crystal S

8 hrs Left

Natural Bi Color Ametrine 2.94 Ct. Octagon Shape 9.9 x 7 Mm Gemstone From Bolivia

Treasure of Gems & Jewelry

Est. $105-$165

Natural Bi Color Tourmaline 5.65 Ct. Octagon Shape 19.2 x 6.3 Mm. Unheated Gemstone From Nigeria: Product ID: 807237832 / Product Name: Natural Tourmaline / Weight: 5.65 CT. / Size: 19.2 x 6.3 x 4.3 MM. / Shape: Octagon / Color: Bi Color / Clarity:VSI / Luster: Good / Gems Origin: Nigeria / Treatm

Mar 01, 2026

Natural Bi Color Tourmaline 5.65 Ct. Octagon Shape 19.2 x 6.3 Mm. Unheated Gemstone From Nigeria

Treasure of Gems & Jewelry

Est. $2,321-$3,647

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