Loose 37.45 Carat Stepped Octagon Cut Amethyst Gemstone, Brazil

Loose 37.45 ct Stepped Octagon Cut Natural Amethyst Gemstone, Brazil Gemstone Description This stepped octagon cut amethyst gemstone presents a refined, architectural outline that suits the stone’s lively quartz brilliance and orderly faceting. Originating from Brazil, it shows a medium light tone with very slightly brownish saturation and a medium pinkish purple hue, giving the color a softly romantic character rather than an overly vivid look. The excellent cutting quality is reflected in the balanced symmetry and the stone’s good brilliance, which helps bring out the broad flashes of purple light across the step facets. As a Type I gemstone, amethyst is typically expected to be relatively clean, and this example is eye-clean to the unaided eye. Under 10x magnification, minor magnetite grains are noted, a natural inclusion feature consistent with the species and not unexpected in a large quartz gem. The stone has not been enhanced, which will appeal to buyers seeking natural color and straightforward gemological provenance. Its substantial size and elegant octagonal form make it a strong candidate for a statement ring, a bold pendant, or a bespoke centerpiece in a fine jewelry design. Gemstone Specification

Short description	Loose 37.45 ct Stepped Octagon Cut Natural Amethyst Gemstone, Brazil
Country of origin	Brazil
Gemstone type	Amethyst
Carat weight	37.45 ct
Dimensions	21.0 x 11.3 x 7.0 mm
Hue (GIA)	medium pinkish purple
Tone (GIA)	medium light (4)
Saturation (GIA)	very slightly brownish (3)
Cut style or shape	Stepped Octagon Cut
Cutting quality	Excellent
Clarity	Eye Clean
Treatment	Not enhanced
SKU	1000273

Credentials
Certified Professional Gemologist - Internation Gem Society
GIA Certificate - Colored Stones 2023
GIA Colored Gemstone Identification Lab Course, 2024
GIA Colored Gemstone Grading Lab Course, 2025
Professional Geologist and optical mineralogy expert