Sell Diamond NYC  is the only diamond buyer that will buy any type of diamond, at any value, the rarer the  diamond the more cash you will get for your diamond. Here is the list of the types of Rare Diamonds we buy.

Sell Pink Diamonds

Pink diamonds have always been exceedingly rare. In the 16th and 17th centuries, India was the principal source of pink diamonds. Recently, a famous light pink Agra diamond was sold at auction for almost $7 million. This stone was documented as being a gift to Babur, the first Mogul emperor, from the Rajah of Agra, for sparing his life in 1526. It later belonged to the Duke of Brunswick, the greatest connoisseur of colored diamonds of the 19th century. In 1725, Brazil produced some light pink diamonds. The Star of Brazil is a 128.80 carat rose colored gem, which was cut around 1832 in Amsterdam. An Indian gem collector paid 80,000 British pounds for it in the 1860s. It remains in India today. In 1947, Dr. John Williamson discovered a 23.60 pastel pink round diamond in Tanzania. It was not until 1979, when Australia discovered a small vein of pink diamonds that things really got exciting. Instead of being faint or light pink, these new diamonds are hot pink. They are producing about a 100 carats a year. The majority of gems are under one carat. In 1989, the Australian mine, Argyle, sold two pinks over 3 carats. It is rumored these stones were sold for $700,000 per carat. Expect to pay over $100,000 per carat for a carat size pink.

Sell Red Diamonds

Red is undoubtedly the rarest colored diamond. Besides the .95 red diamond sold at auction in 1987, only a few others are known to exist. In the 19th century, a famous London jeweler owned a carat-sized red, which he bought for 800 British pounds. Is this the same stone as the .95? In the 1920s a 5.05 emerald cut was cut from a 35 carat piece of rough. This stone was cut by the Goudvis brothers in Amsterdam, after being found in South Africa. Rumor has it that occasionally a red diamond is found in Borneo. A .25 red oval recently sold at Christie’s for $326,800 per carat. Red diamonds are almost priceless.

Sell Blue Diamonds

India was the main producer of blue diamonds from 1500-1700. This was the source for the 112.25 French Blue that later became the the infamous 45.52 Hope. Another famous blue, the 33.56 Wittelsbach showed up at a wedding in 1667, and ended up in Bavaria in 1717 with the ruling House of Bavaria, the Wittelsbachs. It is presently believed to be with a private collector in Germany. Today, new production of blues comes from South Africa or Australia. In order to understand pricing, here are some examples of recent auction prices. In October, 1994, at Sotheby’s, a dealer representing a Hong Kong concern, paid $9 million, or over $460,000 per carat for a 20.17 blue diamond. In 1995, at Sotheby’s, a 6.70 blue diamond sold for $3.52 million, or $525,000 per carat. The leading price per carat public sale for a blue diamond occurred in 1995-a 4.37 fancy deep blue diamond sold for about $2.4 million, or $569,000 per carat at Christie’s.

Sell Green Diamonds

Besides the Hope diamond, the second most famous diamond is the Dresden Green. It is green and weighs 40.70. it is believed to have come from Brazil in 1725. It was purchased by Frederick Augustus the Second from a gem merchant at the Leipzig Fair in 1742. Since then, it has been exhibited for public display in the west wing of the Dresden castle. In 1983, a 8.19 rectangle green diamond was sold at Sotheby’s for $396,000. In 1988, a 3.02 yellowish/green sold for $1.7 million.

Sell Yellow Diamonds

Although faint yellow in white diamonds is not desirable, fancy intense yellow is sought after. Although India produced some yellows in the 16th and 17th centuries, South Africa today is the main producer of these gems. As a matter of fact, the first authenticated diamond found in South Africa was the 10.73 yellow Eureka. By 1900, South Africa had produced the 128.51 Tiffany, the 130 carat Colenso, the 228.50 DeBeers,and the 205.07 Red Cross. In 1996 at Christie’s, a 8.45 fancy vivid yellow sold for $684,500 or $81,000 per carat.

Today, collectors can buy yellows in various shades from lemon yellow to taxicab yellow. The best pure yellow or orangish yellow will be called “fancy intense” or “fancy vivid” yellow on the Gemological Institute of America (GIA) grading report. These diamonds are rare and expensive. Slightly below these stones are the fancy yellows. These stones are more affordable but still quite yellow.

Sell Orange Diamonds

In an ideal perfect world, you should try to collect orange diamonds that look like a Halloween pumpkin. These pure diamonds sell for more than the yellows. A 8.93 fancy intense orange sold for about $1.9 million at Sotheby’s. However, if you are looking for a bargain, focus on oranges with yellowish secondary colors. You can also collect intense oranges with just a hint of brown at substantially reduced prices.

Sell Brown Diamonds

If you want to speculateon a fancy diamond at affordable prices, browns are a natural choice. The connoisseurship of brown diamonds may be in its infancy. In essence, these are the only colored diamond bargains left. Cardinal Jules Mazarin, the chief minister of France in the 1600s collected brown diamonds. In 1967, a 115.59 African brown pear shape was discovered. It was reportedly sold in 1983 for $900,000. You can buy coffee colored diamonds for $2000+ per carat. This is lower than many white diamonds.

Sell Emeralds

Collectors are fascinated with emerald. This rare and exotic gem is also known as “green fire”. Colombia is the main source of gem emerald. This South American country is one of the most dangerous and unstable places in the world. Many visitors recall the similarities between Chicago in the 1920s and Colombia today. With the highest murder and kidnapping rates in the world, cocaine cartels and a long-running guerrilla insurgency, Colombia is often referred to as “Locombia”, or the mad country.

The two most famous mining areas are Muzo and Chivor. Muzo is located 100 kilometers north of Bogota. The district is hot and humid, and it constantly rains. Muzo and Cosquez are the major mines here. Emeralds are found in black calcium-rich shale. Most of the stones from these mines are horribly included. Chivor, which is northeast of Bogota, is in a rugged, almost inaccessible topography with thick, forest vegetation. The two major mines of this district are Chivor and Gachala. Chivor mine sits 2300 meters above sea level on a mountainside. Chivor was originally mined by the Chibcha Indians and emerald was traded from the Andes to Mexico until the mine was lost. Chivor was rediscovered in 1896. In this area the rock is black shale and sandstone. The Colombian emerald market is wide open. Although the Colombian government leases mining rights to private business, illegal mining is the rule, not the exception. No one even pretends to control the situation.

Which mine is better for collectors? The terms Muzo and Chivor are often used in the trade, not so much to determine the exact source of a gem, but rather to to describe the qualities of the emerald. “Muzo” is used to describe a warm, grass-green emerald, with yellow being the secondary color. “Chivor” stones are like the pine trees of Washington state, with blue being the secondary color. Certain collectors and dealers argue about which color is the best, but it is really a matter of personal preference. In top colors (3.5 to 4.5 AGL) , both types of these emeralds are highly desirable and expensive.

Emeralds are very included compared to most gemstones. Inclusions that would not be acceptable in ruby and sapphire are acceptable in emerald. The definitive identifier for Colombian emerald is the three-phase inclusion; solid, liquid, and gas. Even though the gem is typically mined with eye-visible inclusions (even at the collector level), emerald is the most popular colored gem in America. Probably 98% of all emerald discovered would be graded Heavily Included (HI) or worse at the AGL. Therefore, a Moderately Included 2 (MI2 from the AGL) is considered a relatively clean emerald.

Most collectors seek strictly Colombian emeralds. They spend decades buying the finest green and cleanest stones available. Occasionally, African and Brazilian emeralds are discovered that look exactly like Colombian emerald. These gems make sense to collect if you are an emerald connoisseur. If you have a moderate budget, you can purchase African emerald. As a general rule these gems are cleaner than Colombian emeralds but have a touch of black and gray colors. They trade at a 50% discount to Colombian stones. Finally, if you are on a limited budget, occasionally Brazil produces nice stones at about 1/2 the price of Colombians. As a general rule, Brazilian emeralds are green/black in appearance.

Commercial quality Colombian emeralds can easily range from $500-$2500 per carat for one carat stones. High jewelry quality ranges from $2500-$5000 per carat. Gem, one carat emeralds range between $5000-$10,000 per carat. The finest color, four carat or larger Colombian emeralds can easily fetch $20,000 per carat. A ten carat, gem emerald can exceed $50,000 per carat. If an emerald is AGL certified as Lightly Included, add 50-100% to these figures.

Approximately 99% of all emeralds are treated. Similar to the heating of ruby and sapphire, this is perfectly acceptable. Emeralds have been oiled for centuries. Treatment is only possible when inclusions break the surface. Clear oil is forced into surface-breaking inclusions, thereby reducing the visibility of inclusions. Oiled stones tend to fluoresce a pale yellow. Some collectors view this process as akin to buying fine furniture. Once a year it is brought into the manufacturer for a re-oiling. A new treatment for emeralds is opticon. Some dealers contend opticoned emeralds have a better finish, are more durable, and the treatment is permanent. Opticoning uses the same theory as oil, but inclusions are filled with a thick epoxy instead of oil. The stones are sealed with a thin coat. A brand new treatment was introduced in 1997 named Gematrat. They state that their filler “de-emphasizes” the visibility of fractures but does not hide them. The GIA is presently working on a extensive research project that will include studies on emerald treatments and their effectiveness and durability to as many different conditions as they can reasonably test. Suffice to say, if you collect emeralds, you should be aware they are probably treated in some fashion.