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600cts Raw Synthetic Ruby Stone Rough Red Corundum Gemstone Uncut 3A Grade VVS Clarity for Jewelry Making

4.8 (2) Write Review
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$69.50

$ 26 .99 $26.99

In Stock

Product details

  • Item width
    0.98 inches
  • Material
    Created Corundum
  • Metal type
    No metal type
  • Gem type
    Created corundum
  • Total gem weight
    600 carats
  • Stone clarity
    Very Very Slightly Included

About this item

  • Weighs approx 600cts (+/-25cts). Stone size approx 9cm (L) x 2.5cm (W) x 2.5cm (H). 3A-grade, VVS clarity, 1Pcs in total.
  • These stones have a pigeon blood color, the finest and most vivid ruby color. It is raw and unpolished.
  • Ruby stone is known as the birthstone of July. It symbolizes bravery, passion, and love. Its' fiery red color is believed to bring good fortune and courage.
  • If you want to create your own setting for this stone, or if you are simply collecting loose gems, this is an excellent option.
  • These beautiful, colorful stones are great for any jeweler, goldsmith, designer, or craftsman. They can be used in a variety of ways: to make jewelry, for decoration, or even as a gift for someone special.


Product Description

Red corundum, also called ruby, is an aluminum oxide with a hardness of 9 on the Mohs scale. The durability of this gem makes it an ideal choice for rings and other jewelry that will see heavy use.

Corundum is one of the most important gemstones in the world. It can be found in a variety of colors. Corundum occurs in nature in two primary crystalline forms: alpha corundum (or sapphire) and beta corundum (or ruby). The different forms have different properties: sapphires tend to be hard and transparent while rubies are softer and more translucent.

Due to its simple chemical makeup, corundum has been produced synthetically since 1837, and gem-quality synthetic corundum entered the marketplace in the early 1900s. All colors can be produced synthetically, and huge sizes (more than 100 carats!) can also be achieved using Czochralski's Drawing Method.

This process of growing corundum crystals involves taking the necessary oxide components for gem corundum (e.g., Al2O3, Fe2O3, TiO2, Cr2O3) in powdered form and melting them together in a hot content that is just barely over the crystallizing temperature. A rod with a small corundum seed crystal is lowered into the molten material and then very slowly removed. As the crystal is raised above the nutrient-rich molten mixture a small amount of corundum is formed at the interface between the seed crystal and the molten mixture. As the rod is slowly pulled upwards, new corundum continually grows below!

Synthetic stone, as expected, is considerably cheaper than natural stone.

ruby

NOT Dyed, NOT Composite

Our stones are NOT dyed gemstones and NOT composite or assembled stones (Composite gemstones are cementing two or three pieces of stones together to produce a single one.)

ruby

NOT Glass

The chromium present in the stones causes a natural red fluorescence which is stimulated by both visible and invisible (ultraviolet) light.

ruby

No Inclusions

Our ruby stones are in VVS clarity, with no visible inclusions inside. They presents in pretty pigeon blood red under the sunlight.


Kindle Customer
Reviewed in the United States on November 29, 2024
looks good very nice.
joBlow
Reviewed in the United States on November 13, 2024
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