Corlia Roberts

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The Corlia Roberts Diamond Education College presents fascinating courses on diamond evaluation, grading and polishing. Through the Diamond Education college unique combination of one-on-one coaching and integrated videos, students will learn to grade diamonds, polish diamonds, and evaluate diamond stones more consistently and accurately using the very latest in gemmological microscopes. On completion of the course, successful students will receive a Diamond Education College Completion certificate, which “will undoubtedly open doors within a traditionally insular industry.

Principal of the College – Corlia Roberts

Corlia is a qualified Fashion Designer, has +/-18 years experience in the Diamond Industry.

Corlia be contacted on  +27.829657740  | +27.813190211  or Message  #facebook

Her achievements include:
  • GIA (Gemological Institute of America) Diamond Grading course
  • (GIA) Diamond Course
  • (GIA) Gem Identification Course
  • (GIA) Colored stone Grading Course
  • (GIA) Colored stone Course
  • (GIA) Pearl Course
  • (EGL) European Gemological Laboratories – Diamonds and Diamond Grading Course

The mere mention of the word fills the mind with a multitude of concepts and images.

Harry Winston Opens In Miami

Harry Winston Opens A New Salon In Miami Design District:

MIAMI, May 14, 2015 /PRNewswire/ — The House of Harry Winston, the legendary “King of Diamonds,” and international luxury brand announces the opening of a new retail salon in the Miami Design District, a historic part of the city known for its innovative art, architecture, and design. Located at 166 NE 39th Street, the impressive 7,168 square foot salon will house Harry Winston’s exquisite jewelry and timepiece collections, including the finest diamonds and rarest gemstones available today.

Miami Design District presents the perfect setting for Harry Winston’s newest salon location,” said Nayla Hayek, CEO of Harry Winston, Inc. “Harry Winston has long celebrated the similarities between fine art and fine jewelry, often exploring various artistic influences as a way to bring its fine jewelry designs to life. With this opening, we look forward to continuing in this rich tradition, as we share the House’s renowned heritage and extraordinary creations with a city that is at the forefront of global creativity and design, and we welcome our new and existing clients from around the world.”

Designed to capture the elegance and intimacy of a private estate, the new two-story salon reflects a contemporary variation on the traditional Winston style, drawing references from the eloquence and architecture of the brand’s iconic Fifth Avenue Flagship. A soft taupe and grey color palette complements the custom designed black lacquer and antique bronze furniture, with bespoke chandeliers, hand-beaded silk walls and antique accents. Dedicated areas for Harry Winston’s high jewelry, bridal, timepiece and fine jewelry collections, ensure clients receive the discreet and highly personalized shopping experience that the House is known for, while private selling rooms provide a luxurious space for the ultimate in exclusivity.

Mary Cunsolo: Salon Director, Harry Winston Miami Design District; Craig Robins: CEO & President, Dacra; Laurie Adorno: US Vice President of Retail, Harry Winston (PRNewsFoto/The House of Harry Winston)
Mary Cunsolo: Salon Director, Harry Winston Miami Design District; Craig Robins: CEO & President, Dacra; Laurie Adorno: US Vice President of Retail, Harry Winston (PRNewsFoto/The House of Harry Winston)
Harry Winston Salon, Miami Design District (PRNewsFoto/The House of Harry Winston)
Harry Winston Salon, Miami Design District (PRNewsFoto/The House of Harry Winston)

Founded in New York City, in 1932, The House of Harry Winston continues to set the standard for the ultimate in fine jewelry and high-end watch making. From the acquisition of some of the world’s most famous gemstones, including the Jonker, Hope and Winston Legacy Diamonds, to adorning Hollywood’s leading ladies on the red carpet, for over eight decades, Harry Winston has been a symbol of the best there is. Headquartered in New York, the company operates retail salons worldwide, in locations including: New York, Beverly Hills, London, Paris, Genève, Tokyo, Hong Kong and Shanghai.

SOURCE The House of Harry Winston


Fancy Color Diamond Index Holds Firm

Fancy Color Diamond Index Holds Firm:

May 13, 2015 5:02 AM   By Fancy Color Research Foundation

Press Release: Analysis of the latest data published by the Fancy Color Research Foundation (FCRF) in its third Fancy Color Index reveals a stark contrast between the performance of colored diamonds and their colorless counterparts. While white diamond categories suffered price declines of 4 percent to 6 percent, according to the Rapaport Group’s RAPI™, the value of fancy colored diamonds continued to hold firm, with key types increasing in value, during the period between January and April 2015.

Commentary from those who contributed data to the quarterly analysis suggests that a key factor in their resilience during this period is the significant shortage of product across most color and size categories.

This has resulted in those working with fancy color diamonds continuing to enjoy the high margins that these assets deliver. It is expected that the analysis and insight provided by the foundation will continue to enable members to make informed decisions ahead of undertaking significant fancy color diamond transactions.

Product segments that showed price increases of more than 2 percent in the period January to April, included 1-carat fancy and intense blues, 3-carat intense blue and 1.50-carat fancy yellows. A complete data analysis by each category is available to FCRF members at (membership is open to anyone in the jewelry and related industries and payment can be carried out online).

Ephraim Zion, a member of the advisory board of the Fancy Color Research Foundation, commented: “It is encouraging for our members to see that, once again, fancy color diamonds have exhibited a solid growth in value, with fancy and intense blues performing particularly well.

By collating and analyzing sales data from major diamond trading centers we are able to provide far greater levels of understanding as to the performance of fancy color diamonds. This gives our members increased certainty when transacting fancy color diamonds.”

Eden Rachminov, chairman of the board of advisors for the FCRF, said,  “Our members are telling us that our analysis is exceptionally useful as they capitalize on the wealth of information and educational tools at their disposal. We are seeing that increased levels of understanding promoting greater adoption of fancy color diamonds as a product category.”

About the FCRF:
The FCRF is an independent, non-profit organization formed to promote fair-trade, ethics and transparency in the fancy color diamond retail, wholesale and mining industry. The FCRF activity includes the development of innovative research and digital tools that will support the fancy color diamond retail selling process for consumers, retailers and collectors; the promotion of fair trade in fancy color diamonds throughout the value chain underpinned by reliable data analysis to create a uniform knowledge base across all industry layers and the authoring of publications to clarify the complex methodology for evaluating fancy color diamonds.

Membership of the FCRF is open to retailers, auction houses, wholesale traders/manufacturers, financial institutions, insurance appraisers and mining companies. Organizations interested in membership of The FCRF should visit to register details.

About the Fancy Color Diamond Index:
The Index is a first-of-its-kind tracker of changes in the market prices of yellow, pink and blue fancy color diamonds, the three most commonly traded fancy color diamond categories (a market price is a wholesale transaction taking place in one or more of the global diamond trading centers).

The Index is a composite representation of changes in price points gathered since 2005, based on a statistically significant sample size. It offers insight into variations in the appreciation of diamonds of different colors and sizes.

The Fancy Color Research Foundation oversees proprietary prevalence and pricing data aggregation and production of the index. A third party New York-based audit firm reviews the development of The Index from the various data points gathered.

The Index can be used to understand and track the historical price behavior of different rare fancy color diamonds.

Jewelry history was made at Sotheby’s magnificent jewels auction in Geneva

Sotheby’s Geneva Sets Highest Total for a Jewelry Auction at $161M

May 13, 2015 9:27 AM   By Francesco Rosa

RAPAPORT... Jewelry history was made at Sotheby’s magnificent jewels auction in Geneva on May 11, which achieved the highest total to date for any jewelry auction at $160,914,902. The sale was 94 percent sold by lot and broke a total of six new world auction records.

The top lot of the evening was The Sunrise Ruby (pictured),  a cushion-shaped Burmese ruby of 25.59 carats, which sold to an anonymous buyer for $30,335,698, or $1,185,451 per carat. It set three records: a world auction record for any ruby, a world auction record per carat for a ruby and a world auction record for a jewel by Cartier. auction, record, ruby

The second top lot of the sale was The Historic Pink Diamond, an 8.72-carat, VS2, cushion brilliant-cut, fancy vivid pink type IIa diamond. It sold to a bidder in the room for $15,903,422, or $1,823,787 per carat.

Intense bidding from the international trade and private buyers resulted in record prices for exceptional colored gemstones, natural pearls, signed and period jewels. Four jewels by Cartier achieved the top 10 list of highest selling lots, totaling an outstanding $47,166,909.

White and colored diamonds also registered stable prices, with four diamond-only lots making it into the top 10 list.  Continuing the strong demand for natural pearls, an extremely rare natural double-strand pearl and diamond necklace sold to international trade for $7,003,519, registering a new world auction record for a two-row natural pearl necklace.

WFDB President Expresses Concern Over Discovery of Stones With Undisclosed Diamond Treatment

WFDB President Expresses Concern Over Discovery of Stones With Undisclosed Diamond Treatment

Antwerp, Belgium – May 13, 2015: World Federation of Diamond Bourses (WFDB) President Ernie Blom has expressed his concern over a GIA statement that around 500 colorless to near-colorless diamonds were submitted, primarily to its grading laboratory in Ramat Gan, Israel, which were potentially subjected to an undisclosed temporary treatment. 

“I am extremely concerned by this development,” Blom said in a statement. “This is clearly unlawful behavior. We will have no tolerance whatsoever for this type of alleged illegal activity. 

“It is crucial that this kind of unlawful action is stamped out. We are pleased that the GIA publicized this development so that diamantaires can be on their guard, and that the IDE is moving firmly in order to deal with this issue with the utmost seriousness. Our industry must come together to counter such activity, both for the good of our members and for the end-consumer who is always uppermost in our minds,” Blom added. 

The GIA believes that the treatment temporarily hides the color of the diamonds submitted, giving a color grade that can be up to three grades higher than its actual grade. The GIA said it ended client agreements with the companies that submitted the diamonds and notified the relevant trade bodies. 

The report numbers of the potentially treated stones are posted on GIA’s website, and anyone who has purchased or has access to any of these stones is requested to submit them to any GIA lab for a no-cost, accelerated review. 

Diamond markets under pressure


Diamond markets under pressure. Rough prices must go down, polished prices must go up and manufacturers must make money

Markets don’t lie but they do correct. Over the long term, free markets are perfect because they equate supply and demand by establishing democratic prices that honestly reflect the relative value of all goods and services in the market. In the short term markets are often imperfect, as they reflect manipulation and abuse by interested parties seeking to gain short-term profits at the expense of long-term sustainability. Trading short-term profits for long-term losses is a dangerous game. Going for the easy fast buck in a carpe diem “live for the day” world creates market imbalances. The inevitable correction of these imbalances often takes place at the worst of times, when market forces are negative. Such was the case in the 2008 housing crisis when banks over-extended their credit, resulting in unsustainable housing price increases. Obviously, taking short-term gains at the expense of long-term loss is not wise. Whether it’s going to a party instead of studying for a test, eating too much at a fancy dinner and eventually suffering a heart attack or borrowing too much money and then being forced into bankruptcy, the long-term price you pay is not worth the short-term benefit. Many firms cannot resist the temptation of immediate economic gratification. Whether it’s taking too much money from the banks, bidding up rough prices to unsustainable levels, increasing revenue at the expense of profits, bribing government officials, selling overgraded diamonds, mixing synthetics into parcels of natural diamonds or simply not paying bills, it’s hard to resist an easy fast buck. The situation has become worse as structural defects in the dynamics of the diamond markets have destroyed the ability of firms to make normal profits. Competition from firms engaging in unsustainable practices has also forced some good firms to make bad decisions just to stay in business. For example, if your competitor takes on huge debt so that he can overpay for rough diamonds, what should you do? Must you close your factory or should you also pay too high rough prices in order to stay in business? Unfortunately, global diamond markets have been predisposed to making bad short-term/long-term trade-offs. In a nondifferentiated competitive market, legitimate firms have been forced to compete with firms that take shortcuts enabling them to offer lower prices. The net result is that cycles of negative behavior have developed, exposing the trade to significant economic and reputational risk. We have now reached the stage where leading diamond manufacturers and dealers have come to the realization that their current business models are unsustainable. In the words of Maxim Shkadov, president of the International Diamond Manufacturers Association (IDMA): “Our sector is going through a severe crisis and suffers significant problems. … There is no profitable income to be made in diamond manufacturing.…The seriousness of the ‘disconnect’ between the producers (miners) and the manufacturers can no longer be ignored.” (See “President’s Letter,” page 58.) Shkadov is talking about the unsustainable disparity between high rough and low polished diamond prices. He is protesting the disregard of mining companies to the plight of diamond manufacturers who can no longer make profits. From the miner’s perspective, there is no reason not to accept the high prices that diamond manufacturers offer for the rough. What the manufacturers do with the rough and whether or not they make profit is of no concern to the miners. Underlying all this is the role of the Indian government and bankers who have enabled the over-financing of the diamond business, resulting in irrationally high rough prices that ensure manufacturing losses. More…….



Israel Diamond Exchange issues announcement

Israel Diamond Exchange issues announcement
following GIA Lab Alert on undisclosed treated diamonds


Ramat Gan, Israel – May 13, 2015: The President and the Board of the IsraelDiamond Exchange issued a statement today, expressing concern about reported suspicions that traders have distributed close to 500 high-quality, treated polished diamonds in the Israeli diamond trade, without disclosure, and with GIA diamond grading reports that misrepresented the diamonds‘ true identity. The deception was exposed by GIA, which subsequently issued a laboratory alert and informed the “appropriate trading bodies.”

The statement reads as follows:

During the evening hours (GMT +3) of May 12th, 2015, GIA (the Gemological Institute of America) issued a laboratory alert, noting that “GIA reasonably suspects that approximately 500 colorless to near colorless diamondssubmitted primarily to our laboratory in Israel potentially were subjected to an undisclosed temporary treatment. GIA believes that the treatment is a process that temporarily masks the inherent color of the diamond and can lead to a higher grade. The color difference can be as much as three grades.” Lab-Alert-May-12-2015

On the morning of May 13, 2015, The Israel Diamond Exchange (IDE) called an extraordinary meeting of its board of directors, with the participation of the presidium of the Israel Diamond Manufacturers Association (IsDMA); the IDE’s Head of Security, Israel Vantovsky; Police Commissioner (Ret.) Yossi Sedbon; and the IDE’s Legal Counsel, Adv. Shmuel Ini.

Expressing indignation and resentment, the meeting resolved to identify the suspects who distributed close to 500 high-quality, polished diamonds, suspected to be treated, in the Israeli diamond trade, without disclosure, and with GIA diamond grading reports that misrepresented their true identity. The meeting therefore decided to act immediately and, in coordination with the relevant parties in the bourse and the appropriate state authorities, to take the needed measures.

To expedite the process, the board decided to delegate the handling of the case to a number of board members, together with the IDE’s advisors and counsel.

The Exchange will provide further updates as they become available.


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