Natural Green Peridot Rough · 1.459 ct · For Faceting

$5.16

Natural Peridot rough weighing 1.459 ct, featuring an attractive green colour and transparent appearance. Measuring 7.7 × 4.8 × 4.5 mm, this specimen is suitable for faceting, lapidary work or rough gemstone jewellery and is recorded as unheated and untreated.

1 in stock

NGB Reference: NGB-000212 SKU: RO-PERI025GR-002-424 Category: Tags: , , , Brand:
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This individually documented natural Peridot rough weighs 1.459 carats and is offered as an individual natural specimen suitable for faceting, lapidary work or rough gemstone jewellery.

Measuring approximately 7.7 × 4.8 × 4.5 mm, the stone displays an attractive natural green colour with a transparent appearance. Its compact dimensions provide useful material for evaluating orientation, potential yield and the most appropriate final use.

For faceting, the transparent body allows the cutter to assess colour distribution, internal characteristics, available depth and overall cutting potential. Careful orientation can help preserve both weight and optical performance in the finished gemstone.

The specimen may also be used in rough gemstone jewellery, where its natural crystal form and unpolished character can remain part of the final design. In this application, the irregular natural surface and geological identity of the material become important visual features rather than something to be removed through cutting.

Peridot is the gem-quality green variety of olivine and is valued for its characteristic yellowish-green to green colour. Its colour is inherent to the mineral composition and Peridot is commonly encountered without colour-enhancing treatment.

This specimen is recorded as unheated and untreated, with no gemstone enhancement documented for the material. Its colour, transparency and internal characteristics are therefore presented in their naturally recorded state.

As a natural rough gemstone, internal inclusions, fine fissures, growth features and surface irregularities may occur. These characteristics form part of the geological history and individual identity of the specimen and should be considered during cutting, setting or jewellery design.

With its 1.459 ct weight, transparent green material and natural rough form, this Peridot offers flexible potential for either

Overall Score: 89.0/100

NGB Grade: Very Good

Quality Evaluation

Natural Characteristics18.0/20
Inclusion Profile18.0/20
Faceting Potential18.0/20
Usable Yield / Shape Potential17.0/20
Overall Rough Quality18.0/20

Evaluation Notes

The individual NGB evaluation identifies overall rough quality as a particular strength, while usable yield and shape potential is the principal limiting factor in the overall assessment. Natural characteristics, inclusions, orientation potential and usable material are considered in relation to the intended use of the rough. The resulting NGB grade is Very Good.
This natural Peridot rough presents a strong overall quality profile, combining attractive green colour, good transparency and useful dimensions for either faceting or rough gemstone jewellery. The material offers good orientation and yield potential, while only limited natural inclusions or fissures are expected to influence cutting decisions. Its colour, transparency and natural form support a very good overall presentation and versatile lapidary potential.

Species

Olivine

Gemstone Variety

Peridot

Color

Green

Treatment

Unheated, Untreated

Transparency

Transparent

Gemological Properties

Carat Weight1.459 ct
Dimensions7.7 × 4.8 × 4.5 mm
TransparencyTransparent
ClarityNatural rough material
Refractive Index1.635-1.879 (1651-1660)
Specific Gravity3.2-4.39
Hardness6.5–7 Mohs
Birefringenceapprox. 0.036 — strong and often readily visible in faceted stone
Crystal SystemOrthorhombic
Dispersion0.020
LusterN/A
Color Descriptiongreen
Transparency NotesTransparent rough material with good light transmission, suitable for evaluating potential facet orientation.
Natural CharacteristicsNatural rough crystal structure with internal features and shape variations typical of an individual Peridot rough specimen. Natural inclusions, fine internal fissures and subtle growth features may be visible within the transparent Peridot rough. Minor surface irregularities are also present as part of the natural crystal form. These characteristics contribute to the specimen’s individual identity and should be considered during faceting, setting or jewellery design.

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