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Oval Grandidierite Gemstones - Natural, Certified

Oval Grandidierite Weight
Oval Grandidierite Size
Oval Grandidierite Clarity
Oval Grandidierite Price

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ID: 561757
Weight: 4.60ct
Size: 12 x 10 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 242.88
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ID: 471779
Weight: 22.47ct
Size: 21 x 15.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 2,076.23
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ID: 562684
Weight: 3.56ct
Size: 11.5 x 8.8 mm
Clarity: SI
Content: 1 pc
Price: $ 187.97
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ID: 471999
Weight: 9.18ct
Size: 15 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 2,423.52
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ID: 471996
Weight: 6.16ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 813.12
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ID: 471959
Weight: 2.76ct
Size: 9.5 x 7.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 1,457.28
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ID: 471777
Weight: 11.06ct
Size: 14 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 2,919.84
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ID: 614741
Weight: 1.50ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 52.03
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ID: 603001
Weight: 3.09ct
Size: 9.8 x 8.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 203.94
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ID: 471972
Weight: 1.97ct
Size: 8 x 6.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 520.08
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ID: 615229
Weight: 8.92ct
Size: 15 x 10.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 309.43
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ID: 562689
Weight: 2.58ct
Size: 10 x 8 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 136.22
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ID: 548057
Weight: 5.59ct
Size: 12.2 x 10.8 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 184.47
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ID: 471963
Weight: 1.83ct
Size: 9 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 289.87
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ID: 603076
Weight: 1.15ct
Size: 9 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 75.90
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ID: 561754
Weight: 4.83ct
Size: 11.6 x 9.5 mm
Clarity: SI
Content: 1 pc
Price: $ 255.02
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ID: 614326
Weight: 1.64ct
Size: 8.6 x 7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 51.72
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ID: 471861
Weight: 4.58ct
Size: 11.5 x 8.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 1,209.12
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ID: 472000
Weight: 5.27ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 486.95
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ID: 561767
Weight: 2.64ct
Size: 10.9 x 8 mm
Clarity: SI
Content: 1 pc
Price: $ 139.39
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ID: 471778
Weight: 9.75ct
Size: 14.6 x 10.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 2,574.00
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ID: 614767
Weight: 3.45ct
Size: 11.5 x 9.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 108.80
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ID: 614327
Weight: 8.97ct
Size: 14.6 x 12.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 311.16
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ID: 603124
Weight: 1.07ct
Size: 8.5 x 5.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 70.62
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ID: 562664
Weight: 3.04ct
Size: 10 x 8 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 145.92
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ID: 471869
Weight: 5.96ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 1,573.44
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ID: 602994
Weight: 1.40ct
Size: 7.5 x 6.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 84.00
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ID: 614736
Weight: 2.06ct
Size: 9 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 59.55
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ID: 471970
Weight: 3.78ct
Size: 11.4 x 8.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 997.92
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ID: 471786
Weight: 14.09ct
Size: 15.9 x 13.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 3,719.76
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ID: 602998
Weight: 3.09ct
Size: 9.6 x 7.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 203.94
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ID: 603169
Weight: 1.40ct
Size: 8 x 6.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 546.48
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ID: 471872
Weight: 6.02ct
Size: 13 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 1,188.00
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ID: 603213
Weight: 2.98ct
Size: 10 x 7.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 178.80
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ID: 603160
Weight: 1.96ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 546.48
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ID: 471871
Weight: 6.41ct
Size: 14 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 1,269.18
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ID: 603133
Weight: 2.75ct
Size: 10.7 x 7.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 181.50
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ID: 471780
Weight: 11.77ct
Size: 16.9 x 13.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 1,087.55
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ID: 472001
Weight: 6.33ct
Size: 14 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 1,671.12
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ID: 561051
Weight: 2.51ct
Size: 10.4 x 7.6 mm
Clarity: SI
Content: 1 pc
Price: $ 132.53
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ID: 603126
Weight: 2.53ct
Size: 9.3 x 8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 166.98
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ID: 603170
Weight: 2.98ct
Size: 10.3 x 8.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 496.80
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ID: 561755
Weight: 4.21ct
Size: 11 x 9 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 222.29
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ID: 472003
Weight: 6.92ct
Size: 12.6 x 10 mm
Clarity: Translucent
Content: 1 pc
Price: $ 1,826.88
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ID: 562149
Weight: 5.14ct
Size: 11.5 x 9.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 271.39
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ID: 471977
Weight: 4.89ct
Size: 11.4 x 9.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 645.48
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ID: 471788
Weight: 10.79ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 1,424.28
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ID: 561055
Weight: 3.57ct
Size: 11 x 9 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 188.50
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ID: 562148
Weight: 4.28ct
Size: 11 x 9.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 225.98
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ID: 471863
Weight: 7.32ct
Size: 13 x 11 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 1,932.48
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ID: 548266
Weight: 10.64ct
Size: 14 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 421.34
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ID: 614743
Weight: 6.15ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 213.34
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ID: 603167
Weight: 2.44ct
Size: 9.1 x 7.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 546.48
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ID: 471966
Weight: 2.75ct
Size: 9.5 x 8.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 435.60
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ID: 548278
Weight: 11.37ct
Size: 14.6 x 12.9 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 450.25
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ID: 614321
Weight: 4.21ct
Size: 11.3 x 9.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 146.04
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ID: 614329
Weight: 8.65ct
Size: 15 x 11.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 300.06
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ID: 614742
Weight: 4.83ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 167.54
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ID: 548260
Weight: 22.15ct
Size: 16.8 x 15.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 877.14
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ID: 548058
Weight: 10.62ct
Size: 15.3 x 13.1 mm
Clarity: SI
Content: 1 pc
Price: $ 420.55
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FAQs

What are oval grandidierite gemstones?

Oval grandidierite gemstones are rare, natural borosilicate gems, prized for their striking blue-green to greenish-blue hues and trichroic pleochroism, showing dark blue-green, colorless, or dark green depending on the angle. Discovered in Madagascar in 1902, these certified stones, often cut into oval shapes to enhance their brilliance, are among the world’s rarest gems, ideal for unique jewelry.

Are oval grandidierite gemstones natural and untreated?

Yes, oval grandidierite gemstones are typically natural and untreated, valued for their vibrant colors and clarity, ranging from translucent to rare transparent quality. Certifications verify authenticity, and any rare enhancements are disclosed, ensuring transparency for buyers (per,).

What types of jewelry are best suited for oval grandidierite gemstones?

With a Mohs hardness of 7-7.5, oval grandidierite gemstones are durable for rings, earrings, pendants, and necklaces. Their perfect cleavage requires protective settings for rings to prevent chipping, making them ideal for pendants or statement earrings where their elongated oval shape and pleochroic sparkle shine.

What shapes and sizes of oval grandidierite gemstones are available?

Oval grandidierite gemstones are primarily cut into oval shapes to maximize their trichroic color play, with sizes from 3 mm to larger cuts, typically 0.5-2 carats due to rarity. Other shapes like round, cushion, or pear may be available, but oval cuts dominate for their elegance in jewelry settings (per,).

How do I purchase oval grandidierite gemstones from GemSelect?

Visit the oval grandidierite gemstones category, select your preferred loose stone by size, clarity, or color, and complete your purchase with secure checkout and worldwide shipping options, ensuring fast delivery for your jewelry projects.

What color variations exist in oval grandidierite gemstones?

Oval grandidierite gemstones range from soft blue-green to vivid neon blue or greenish-blue, with color intensity tied to iron content. Their trichroic pleochroism displays dark blue-green, colorless/light yellow, or dark green hues depending on the viewing angle, with Madagascar’s Tranomaro stones prized for neon blue tones (per,,).

Are oval grandidierite gemstones in stock and how are they sourced?

All oval grandidierite gemstones are in stock and ready to ship, primarily sourced from Madagascar’s Andrahomana and Tranomaro deposits, with some from Sri Lanka’s Kolonne region. Madagascar’s 2014 Tranomaro find yielded rare transparent stones, ethically sourced to ensure quality and authenticity (per,).

How do oval grandidierite gemstones compare to Paraiba tourmaline?

Oval grandidierite gemstones share a blue-green hue with Paraiba tourmaline but are significantly rarer, with a 1:10,000 gem-quality yield compared to tourmaline’s wider availability. Grandidierite’s trichroic pleochroism and higher hardness (7-7.5 vs. 7-7.5) offer unique color shifts and durability, making it a premium collector’s choice at $50-$1,000/ct versus Paraiba’s $500-$5,000/ct.

How should I care for oval grandidierite gemstones?

Clean oval grandidierite gemstones with warm soapy water and a soft brush, avoiding ultrasonic or steam cleaners due to their cleavage and brittle tenacity. Store separately in a soft cloth or padded box to prevent scratches or chipping, ensuring their rare beauty endures (per,).

GemSelect Certified Store Reviews

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I like the way your website shows us what stone were buying as well the easy way to navigate the site. also knowing the stones are real...

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Good selection, using for custom jewlery for my wife.

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Appreciated the selection. Jadeite is hard to find under $100. Website has alot of variety.

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