Loose Octagonal Cut Gemstones

Octagonal gemstones combine geometric precision with exceptional light performance, their eight-sided silhouette creating an architectural presence. Our vintage-inspired collection showcases perfectly proportioned octagonal treasures – from sapphires to spinels – each stone exhibiting remarkable symmetry, exceptional clarity, and the distinctive character that makes this sophisticated cut a statement of refined taste and gemological appreciation.
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Gem type

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Color

Shape

Shape

Diamond shape refers to the overall outline and facets of a diamond. It’s a crucial factor that affects a diamond’s brilliance, fire, and scintillation – its ability to reflect light and sparkle.

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Origin

Origin

Treatment

Treatment

Carat weight

Carat weight

Diamond weight, also known as carat weight, is a measure of a diamond’s mass. It’s one of the four Cs (carat, cut, clarity, and color) that determine a diamond’s value and price.

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14 items

1.22 Colombian Green Emerald Octagon Shape

1,200.00$

2.38 Zambia Green Emerald Octagon Shape GRS

14,280.00$

3.50 ct Madagascar Octagonal Blue Sapphire GRS

11,550.00$

3.71 Pair of Octagon Shape Brazilian Aquamarine

1,600.00$

1.92 Octagonal Shape Intense Green Colombian Emerald ALGT

4,493.00$

2.05 Octagonal Shape Vivid Deep Green Afghan Emerald ALGT

3,998.00$

3.18 Octagonal Shape Intense Green Emerald CGL

7,441.00$

2.08 Octagonal Shape Vivid Deep Green Tsavorite ALGT

4,056.00$

1.66 Octagonal Shape Deep Blue Sapphire ALGT

900.00$

10.07 Octagonal Shape Yellow Sapphire CGL

27,000.00$

13.19 Octagonal Shape Vivid Green Verdelite Afghanistanian Tourmaline

3,675.00$

1.87 Colombian Green Emerald Octagon Shape

Sold

1.61 Octagonal Shape Deep Blue Sapphire ALGT

Sold

1.15 Vivid Green Octagonal Shape Zambian Emerald

Sold

FREQUENTLY ASKED QUESTIONS

How does the octagonal cut differ from the emerald cut?

While both feature step-cut faceting, the octagonal cut’s eight sides create additional light return and brilliance, offering greater scintillation while maintaining the sophisticated elegance that step-cut enthusiasts prize. This geometric precision offers a more dynamic appearance while retaining the sophisticated elegance of step cuts, making it particularly appealing for collectors seeking distinctive alternatives to standard shapes. Natural octagonal gemstones typically command higher prices than comparable emerald cuts due to their relative rarity and the additional precision required in cutting, with well-executed examples displaying superior light performance and visual appeal.

What makes octagonal cuts particularly desirable for certain gemstones?

The octagonal shape enhances color distribution in saturation-dependent precious stones like sapphires and rubies, preventing color concentration in specific areas that can plague other cuts. For diamonds, this cut provides excellent clarity presentation while maintaining impressive fire, striking a perfect balance between brilliance and elegant sophistication. Collectors value this rare cut for its perfect balance between classic styling and distinctive character, making properly-proportioned natural octagonal gemstones highly sought after in the premium market segment where uniqueness commands significant price premiums.

Are octagonal cut gemstones a good investment?

Octagonal cuts represent excellent value for discerning buyers seeking distinctive alternatives to more common shapes without sacrificing beauty or resale potential. Their relative rarity compared to standard shapes means high-quality, GIA-certified octagonal gemstones often appreciate more rapidly, particularly in important colored stones where originality and character drive collector interest. Conflict-free natural specimens in substantial sizes perform particularly well as investment vehicles over time, especially in traditional investment gemstones like ruby, sapphire, and diamond where the unusual cutting style adds significant character and collectibility to stones of already inherent value.