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31-Carat Blue Diamond Might Fetch $15 Million At Christie’s

At Christie's Magnificent Jewels auction next month, a stunning blue diamond pendant necklace is expected to fetch millions of dollars.
31 Carat Blue Diamond Necklace.

A 31.62-carat Fancy blue diamond pendant necklace is estimated to fetch between $10 million and $15 million at Christie’s Magnificent Jewels auction. The pear-modified brilliant gem has been graded as natural color, VVS1 clarity and potentially Internally Flawless by the GIA.


According to IDEX Online, a 31.62-carat Fancy blue diamond pendant necklace is expected to earn between $10 million and $15 million at Christie’s Magnificent Jewels auction next month.

The GIA has assessed the pear-modified brilliant stone as natural colour, VVS1 clarity, and probably Internally Flawless. “Set amid round diamonds and pink diamonds in platinum and rose gold,” the stone says.


31-Carat Blue Diamond

Another pendant necklace will be featured in Christie’s Magnificent Jewels auction on December 6. This one has an 86.64-carat pear brilliant-cut diamond as well as 78 pear brilliant-cut diamonds ranging from 2.50 to 0.50 carats totaling 87.73 carats in platinum and white gold. It is expected to sell for between $5 million and $7 million.


Christie's Magnificent Jewels Auction

Christie’s Magnificent Jewels auction at Geneva’s Four Season Hotel des Bergues features a curated selection of historic and modern jewels from all periods, as well as the most famous jewel houses such as Harry Winston, Cartier, Van Cleef & Arpels, and many more.


Christie’s is a British auction company founded by James Christie in 1766. Its headquarters are located on King Street in St James’s, London, Rockefeller Center in New York City, and Alexandra House in Hong Kong. Groupe Artémis, François-Henri Pinault’s holding company, owns it.

Christie’s Magnificent Jewels auction, taking place live (and online) on December 6 at the auctioneer’s New York gallery at Rockefeller Center, could be your one-stop shop.

Blue diamonds are a type of diamond that has all of the inherent properties of the mineral except for the addition of blue colour in the stone. They are blue due to trace amounts of boron in the crystalline lattice structure.

On average, a 0.5 carat light blue diamond costs $26,280. Deep blue and vivid blue diamonds are much more expensive, costing around $75,000 for a 0.25 carat diamond. Blue diamond prices rise as colour intensity and carat weight increase, reaching $100,000, $200,000, and beyond.

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Billionaire Laurence Graff paid a record-breaking $46.1 million for a magnificent vivid pink diamond weighing 24.78 carats. Originally owned by his competitor Harry Winston, it now carries graff’s name and is a part of the legendary collection of rare diamonds.

We usually advise brilliant round diamonds with a cut grade of very good, ideal, or super ideal for engagement rings (also known as hearts and arrows). A high cut grade maximises a diamond’s beauty for a given carat weight.


It’s crucial to have a concept of what you might prefer before starting your search because it will enable you to focus on fewer of the many engagement ring possibilities that are now available. Also, when you initially start browsing, it helps to have a few distinct design concepts and the overall budget because the variety can be overwhelming.

Here are Engagement Ring Trends 2023:

1. Modern Art-Deco
2. Colored Stones
3. Lab-Grown Diamonds
4. East-West Settings
5. Multiple Large Stones

The traditional round diamond form, which is the most common, may come to mind when you think of diamonds. But if you want something different, a tonne of alternative forms may be found to suit your unique taste and style. Each diamond shape has its own fire and brilliance because they are cut to different standards, altering how they reflect light.

The most popular kinds of diamonds are listed below:

1. Round Brilliant Cut Diamonds
2. Princess-Cut Diamonds
3. Marquise-Cut Diamonds
4. Cushion-Cut Diamonds
5. Emerald-Cut Diamonds
6. Radiant-Cut Diamonds
7. Pear-Shaped Diamonds
8. Oval Diamonds
9. Asscher-Cut Diamonds