102 Carat D Flawless Diamond Fetches $15.6 Million

102.39-carat D-flawless oval diamond

A 102.39 carat D color flawless oval diamond was sold in a single lot auction for more than $15.6 million. The sale by Sotheby’s Hong Kong was the first time a diamond of more than 100 carats was sold in a combined online and live auction and such an important diamond was offered without reserve.

The diamond was purchased by a private Japanese collector who requested anonymity, Sotheby’s said in a statement. The person named the gem, “Maiko Star” after his second daughter. The same collector bought the 88.22 carat “Manami Star” at Sotheby’s in April 2019.

The sale of the Type IIa diamond the purest and rarest kind of mined diamond resulted in the highest price achieved for a diamond sold online and earned the most bids for a world class diamond. In addition, it was only the eighth diamond of more than 100 carats ever sold at auction. The auction house describes the diamond as “perfect,” not only because of its top color and clarity grades, but also for its “excellent polish and symmetry.”

However, the total price fell far short of what similar diamonds sold for at auction.

102.39-carat D-color flawless oval diamond sold in a combined online and live auction
102.39-carat D-color flawless oval diamond

Sotheby’s is set to auction off one of the rarest diamonds in the world

102.39 carat D Colour Flawless Oval Diamond

Sotheby’s is set to auction off a 102 carat diamond that could become the most expensive jewel ever sold to an online bidder.

The stone, a 102.39 carat D Colour Flawless Oval Diamond, could fetch $10 million to $30 million. Only seven flawless white diamonds of more than 100 carats have ever been sold at auction. It is the second-largest oval diamond of its kind ever sold at auction.

“One hundred-carat diamonds as a rule are exceedingly rare,” said Quig Bruning, head of Sotheby’s jewelry department in New York. “One hundred-carat D flawless are even more rare.”

While Sotheby’s doesn’t have an official estimate, comparable diamonds have sold for between $11 million and $30 million in the past, Bruning said.

The stone, described by Sotheby’s as “the size of a lollipop,” will be sold at a live auction in Hong Kong on Oct. 5, but it will also be open to online bidders starting on Tuesday. If it’s purchased by an online bidder, it would likely top the record for the most expensive piece of jewelry ever sold online a pair of fancy blue and pink diamond earrings that sold for $6 million online in 2016.

The 102 carat stone was cut from a 271 carat rough diamond that was discovered in the Victor Mine in Ontario in 2018. The diamond was cut and polished over the course of a year by Diacore to bring out its “best brilliance, fire and scintillation,” according to Sotheby’s. The stone belongs to an elite subgroup of diamonds known as “Type IIa,” which are the most chemically pure type of diamond with the highest level of transparency.


Demand for the rarest, largest diamonds has strengthened during the coronavirus pandemic, as the wealthy have benefited from stronger stock markets and investors look for long-term stores of value in a financial world awash with cash.

While demand for everyday jewelry sold in stores has plunged since people aren’t visiting malls and shops as often, or wearing jewelry as often prices for so-called investible diamonds have remained strong. Wealthy buyers, especially in Asia and the Middle East, covet diamonds as the ultimate hard-asset, since they are durable and portable.

Sales of jewelry and diamonds online have also increased, as people buy more from home. Sotheby’s said its online jewelry sales have totaled $31 million this year, seven times more than the same period last year. It has sold three lots for more than $1 million online.

“The retail experience going into the store, trying things on that’s gone right now, or at the very least has changed substantially,” Bruning said. “A lot of things have moved online, and we have been able to really capitalize on that by showcasing things in a new and compelling kind of way globally.”

When asked whether the buyer of a 100 carat diamond would ever wear it, he said: “Absolutely. They want to enjoy them.”

Source; CNBC

$42M Expected For Pink Diamond At Christie’s Auction

Oval Cut Fancy Vivid Pink Diamond

An Oval Cut Fancy Vivid Pink Diamond  goes under the hammer at the Christie’s Magnificent Jewels sale this month.

The 14.93 carat  Type IIa VVS1 clarity  Oval Diamond, named the Pink Promise is estimated to sell for between $28 million to $42 million USD.

Oval Cut

Oval shaped diamond

Features of an Oval Cut Diamond
1. Elongated Shape
The oval cut is an elongated shape that can range from a perfect oval to a more elongated ellipse depending on the ratio of length to width.
Proportions can vary, but a ratio of approximately 1.33 to 1.66 (length-to-width) is typically considered ideal for maintaining a graceful appearance.
2. Brilliant Cut Facets
Like the round brilliant cut, the oval cut diamond features 58 facets arranged in a brilliant cut style.
These facets are designed to maximize light reflection and create a stunning, fiery sparkle. The brilliance is typically comparable to that of round diamonds, though the oval shape tends to have a slightly softer light return due to the shape’s rounded edges.
3. Soft, Rounded Edges
Oval diamonds are characterized by their soft, rounded edges, making them less prone to visible chipping compared to shapes with sharp corners, such as the emerald cut or princess cut.
4. Larger Surface Area
The oval cut tends to appear larger than a round diamond of the same carat weight due to its elongated shape, offering more visual size, which is often appealing to those who prefer a larger stone without sacrificing carat weight.
5. Symmetry and Bowtie Effect
An important feature to check in an oval diamond is its symmetry. The diamond should have a balanced outline without any noticeable bulges or flat areas.
Many oval diamonds can exhibit a bowtie effect, where the center of the diamond appears darker, resembling the shape of a bowtie. While not a flaw, a noticeable bowtie can sometimes be distracting, so it’s important to select a stone with minimal or no bowtie effect.
Why Choose an Oval Cut Diamond?
1. Timeless Elegance with a Modern Twist
The oval cut has become increasingly popular due to its elegant, vintage charm, combined with a modern appearance. It offers the classic appeal of a round diamond but with a more distinctive and elongated look that feels fresh and different.
2. Appears Larger Than Other Shapes
Due to its elongated shape, an oval diamond can look larger than round diamonds of the same carat weight, offering more presence without the need to increase carat weight. This is especially appealing for those who want the look of a larger diamond at a more affordable price.
3. Versatility in Setting Styles
Oval cut diamonds pair well with various types of settings, including solitaire, halo, three-stone, and pavé bands. Their elongated shape can also flatter longer fingers, making them a popular choice for engagement rings.
The oval shape works well in both modern, minimalist settings and vintage-inspired designs, making it a versatile choice for any style preference.
4. Less Prone to Chipping
Since oval diamonds have no sharp corners like princess or emerald cuts, they are less susceptible to chipping or damage, making them a durable and practical choice for everyday wear, especially for engagement rings.
How to Choose the Perfect Oval Cut Diamond
1. Pay Attention to Proportions
Proportions are key when selecting an oval cut diamond. Look for a diamond with balanced length-to-width ratios (1.33 to 1.66) for a more elegant and symmetrical appearance.
Symmetry is also important to ensure the diamond’s facets align perfectly and create the desired visual appeal.
2. Check for the Bowtie Effect
The bowtie effect is a common characteristic of oval diamonds, but you may want to choose one with a minimal bowtie for better visual appeal. A pronounced bowtie can detract from the overall brilliance of the diamond.
3. Focus on the Cut Quality
The cut quality of an oval diamond significantly impacts its brilliance and sparkle. Ensure that the diamond has been cut to the highest standards, with well-executed facets that maximize light return. A well-cut oval will give the diamond brilliant sparkle similar to a round brilliant.
4. Opt for a Quality Certification
Choose a diamond with a certification from a reputable gemological laboratory, such as GIA, DCLA, or AGS. Certification ensures the diamond’s quality and gives you a detailed report on its cut, color, clarity, and carat weight.
Oval Cut vs. Other Diamond Shapes
Shape Unique Feature Brilliance Popular Setting Style
Oval Cut Elongated shape, large surface area Similar to round brilliance Solitaire, Halo, Three-Stone
Round Brilliant Perfectly symmetrical, circular Maximum brilliance Solitaire, Pavé, Halo
Cushion Cut Rounded corners, soft sparkle Moderate brilliance Halo, Vintage-Inspired, Solitaires
Princess Cut Square shape with sharp corners High brilliance, sharp sparkle Modern Solitaire, Three-Stone
Emerald Cut Step-cut with large, flat facets Subtle sparkle, elegant shine Solitaire, Vintage-Inspired

The Oval Cut diamond is a stunning choice for those who seek an elegant, elongated shape with exceptional brilliance. Combining the fire and brilliance of the round brilliant cut with a unique and flattering shape, it is a versatile option for various jewelry settings. The larger surface area and soft edges offer a distinctive look while being less prone to chipping. Whether you prefer a modern, minimalist design or a vintage-inspired setting, the oval cut is a timeless option that is sure to stand out.