Gems and Precious Stones

Yes, amethyst is a type of quartz mineral that can be found underground in geodes and within volcanic rocks. It is formed from the deposition of silicon dioxide in cavities within rocks, gradually developing its characteristic purple coloration over time.

Carat weight is a measurement of a diamond or gemstone's weight, not its physical dimensions like length or width. Therefore, the carat weight of an 8mm cushion cut stone cannot be determined without knowing the specific density of the material.

5 to 5.5 mm round, 6x4 mm oval , varies depending on cut , this is approximate.

Yes, some precious stones can be melted together to create a new material, usually known as a synthetic or composite gemstone. However, the process can be complex and may alter the physical and chemical properties of the stones involved. It is important to consult with a professional gemologist before attempting to melt precious stones together.

You can shop online -- link below -- for the synthetic blue diamond that you want, by giving them all the parameters required to price this diamond.

Using this site, be aware that you can buy a stone that is...

... a "round brilliant up to about .45 carat in VS, SI and I quality levels. You may request to be put on a waiting list for a larger diamond, but please be aware it may take years for a blue diamond 1 carat or larger."

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RY Crystal is Known to be a very fine "Lead Crystal" it is 30% lead which makes it a "Lead crystal" under the European crystal standards. Lead in a crystal means the amount of light it reflects, anything above 28% lead is considered as high quality.

RY Crystal is a merging European crystal best known for their dazzaling shine on the Famous RY Crystal Chandeliers.

Monsieur assumes that the gems are false because he notices flaws in their appearance and the craftsmanship of the jewelry setting. He also suspects foul play due to the secretive behavior of the seller and the suspiciously low price at which the gems are being offered.

Peridot is classified as a semi-precious gemstone. It is known for its vibrant green color and is commonly found in regions such as Arizona, China, and Pakistan.

Yes, garnet can scratch glass due to its hardness rating on the Mohs scale of 6.5-7.5, compared to glass which ranks at around 5.5.

Yes, opaque emeralds and sapphires can still hold value depending on their color, size, and rarity. Opaque gemstones can be cut and polished to highlight their natural beauty and unique patterns, making them desirable to collectors and individuals who appreciate unconventional gemstones.

The four gems commonly found on crowns of kings are typically rubies, emeralds, sapphires, and diamonds. These precious gems symbolize power, wealth, and royalty, and are often used to decorate and embellish royal regalia.

The third hardest gemstone is ruby and then the fourth hardest is emerald.

Lapis lazuli was the semi-precious stone that decorated Tutankhamen's burial mask. It was a beautiful blue stone that was highly prized by ancient Egyptians for its deep color.

Uncut rubies are generally worth less than cut rubies because the cutting process adds value by enhancing their brilliance and color. Cut rubies are also easier to set into jewelry and more desirable to consumers for their finished appearance.

Ruby has a vitreous to subadamantine polish lustre.The chemical composition of ruby is aluminum oxide (Al 2 O3). Its specific sravity is 3.99 to 4.00 and refractive index range is 1.760-1.768 to 1.770-1.779. It's hardness on Mohs scale is 9. It's the next hardest mineral after diamond. Vitreous to subadamantine

Tourmaline opal belongs to the silicate class of minerals, specifically in the sub-group known as the cyclosilicates. It is characterized by its unique crystal structure and vibrant play-of-color caused by microscopic silica spheres within the stone.

No, the pearls on a pearl necklace are drilled though their centres and a string is threaded though the hole. The string is knotted on each side of each pearl on the string so that the pearls do not slip round the string or fall off the string if it breaks (you will lose one to the ground if this happens).

Thus if you try and stretch the necklace all that will happen is the string will break and you will have to pay to have the necklace re strung. If the necklace is too short then your only option is to have more (matching) pearls added to the necklace to make it longer.

you are really rich and you have a professional driver to drive for you

A diamond's cleavage refers to the tendency of the diamond to split along certain planes of weakness due to its crystal structure. Fracture in a diamond occurs when it breaks irregularly, without following a distinct plane of weakness. Both cleavage and fracture can affect the value and durability of a diamond.

A ruby is a precious gemstone known for its deep red color due to the presence of chromium. It is a variety of the mineral corundum, with a hardness second only to diamonds, making it ideal for jewelry. Rubies are often associated with love, passion, and energy.

That depends on whether its a cut gem or not, I've seen 400-500ct rubies that were opaque auctioning off for over 30,000$

As such, I would assume that a 200ct ruby would be worth atleast 10,000 or more.

Canary diamonds are a type of yellow diamonds known for their intense yellow hue. They are considered one of the most valuable and sought-after fancy colored diamonds due to their rarity in nature and vibrant color. Canary diamonds are typically graded based on the intensity of their yellow color.

In Zurich, you can find a variety of jewelry stores offering a range of products from luxury watches and designer pieces to handcrafted artisanal jewelry. The city is known for its high-quality Swiss watches, including brands like Rolex, Omega, and Swatch. Additionally, Zurich features jewelry boutiques that showcase unique and contemporary designs, as well as traditional Swiss styles.

14 kt GE , means it has a very thin layer of 14kt gold over it (gold eletroplated)

ESPO was an Us brand , famous in the 60's and 70's , so it menas the ring has got quite a value as a vintage

The 'ESPO' is short for Esposito, he's still designing jewelry (has a range on QVC) so the ring isn't necessarily worth any more as a vintage.