"Yan!" An warmly hugged Yan Yixin, it seems that the two of them are still friends.

Yan Yixin took out the diamond, An only glanced at it, and then whistled: "Oh, this diamond is not very good, how could you be willing to buy such a blank?" ”

Yan Xuan's face suddenly turned red, if it weren't for himself, I'm afraid Yan Yixin would have sent that rupee away directly, right?

"I thought it might be a little better than it looks, so I was willing to take a risk." Yan Yixin didn't bring out the role of Yan Juan, but just said lightly.

"If you can reach the M grade, the weight of 20 carats should be able to sell for 8,000 dollars per carat. If, after polishing, the diamond's color drops to N, the value is even lower, leaving only $6,000 per carat. Ann was very old-fashioned in estimating the price of the diamond.

Just one grade is a difference of $40,000. If there is a difference of two levels...... Yan Juan has some understanding of the cruelty of this industry.

Ann didn't immediately start chiseling, and it seemed that he still had doubts about the diamond. I touched the diamond back and forth several times with my fingers, but I still didn't make up my mind.

"Let's open a window and take a look!" Yan Yixin proposed.

Ann seemed to have been waiting for his words for a long time, and readily agreed.

"Yan, your vision is really good!" An looked through the window, and then handed it to Yan Yixin.

Yan Juan's heart returned to its original position, and it seemed that the decision he made impulsively would not cause Yan Yixin to suffer too much loss.

"Well, it's not as muddy on the inside as it appears on the outside. Also, the depth of the crack is also shallow, just a boil, you should be able to split it off, right? ”

"Of course, no problem, I can just cut it right here and split it in two." Ann took the diamond and drew a circle on one of the sharp corners at the bottom, presumably to make some kind of mark.

"Boils?" Yan Juan asked suspiciously.

"Well, it refers to the place where the internal structure of the crystal changes, usually when the big diamond engulfs the small diamond, and in the layers of the diamond, there is an abnormal texture. When dealing with diamonds, this type of boil cannot be left behind. Yan Yixin patiently explained, turning his head to look at An, "Then what are we waiting for?" Get started now! ”

Ann smiled and took out a cigar from the cigarette case: "You're still so impatient." ”

Yan Yixin took the cigar he handed over, and the two of them didn't say anything, and smoked face to face.

Yan Juan looked around at An's workbench, a lump of brown things, and he didn't know what it was. She leaned over curiously, and Yan Yixin's voice rang out with a smile: "That's the special cement for the chisels." ”

Yan Juan turned around and found that they had finished smoking their cigars, and Ann's expression was the same as before. It was as if he had changed from a dying old man to a calm surgeon all of a sudden.

Now, Yan Juan can believe that he is one of the best chiselers in the world.

Ann's assistant walked in, lit the alcohol lamp, softened the cement, and glued it to the chisel to secure the diamond they had brought.

Soon, the diamond was firmly glued to the cement, and only the sharp corner drawn with the pen was still exposed.

Ann and the assistant pointed to the diamond and said a few words in Portuguese, and then the assistant took out a drill knife and patiently sharpened a groove in their diamond.

Yan Wan watched intently, as Yan Yixin said, this was a rare opportunity. The chisels must not be willing to be observed when they are working, if it weren't for Yan Yixin's relationship, Yan Juan would not have gotten this opportunity to observe.

Ann's expression became more and more calm, and the grooves that were ground out were well-proportioned and clear.

"Alright, you can use the knife!"

Ann seemed to smile, perhaps just tugging at the corners of her mouth.

If you look at his patient and meticulous polishing movements, you really can't imagine the speed of the thunderous knife. It seems to be confident, and the hand that puts down the knife is stable and fast.

Yan Juan almost couldn't help but close his eyes when he swung the knife. When it was opened again, the diamond had become two pieces, still quietly fixed to the chisel pillar.

"Good." An breathed a sigh of relief, and the sweat on her forehead slowly flowed down.

"Ann, your sword is not old, and your skills are the same as they were back then." Yan Yi complimented sincerely, "It's a pity if there is no successor to such a skill." ”

Ann picked up another cigar, and the assistant did the rest.

Yan Juan also breathed a sigh of relief, at least her decision would not cause Yan Yixin to lose money.

Yan Yixin beckoned to Yan Juan: "Look at the performance of our diamonds on the spectrometer." ”

"What is this?" Yan Juan curiously pointed to the red area where the diamond appeared.

"This is a spectrometer, the fundamental optical filtering principle, to examine the refractive characteristics of a diamond. Anything that is not right inside the diamond will show up as a red or green area. The more dispersed this area is, the greater the risk factor for diamonds. ”

"That'...... The red area of this diamond seems to be quite large. Yan Wan said uneasily.

"Of course, if it's not big, how can it be sold at such a low price?" Ann didn't know when, it was already behind them, "To be precise, this diamond is simply a combination of a bunch of imperfections, this cloudy area, when cutting, you should pay special attention to it." ”

Yan Yixin smiled lightly: "Although the conditions are sinister, this piece is turbid and the area is not large, we can find a way to put it in the crown." ”

Ann bit her cigar and nodded.

Yan Juan turned his head suspiciously, and Yan Yixin casually drew a sketch on the white paper: "You know, except for a very few high-quality diamonds, most of the diamonds have flaws. Cutting is the means to cover up these imperfections. There are many fewer facets on the crown than on the underneath, so the refraction of light on the crown is naturally reduced. The flaws on the side of the bottom of the drill will be magnified by refraction several times, and the original flaws will look much worse than the actual situation. ”

"Oh, so, we're going to put the blemish on the crown so that it can escape the scrutiny." Yan Juan suddenly realized.

Diamonds are everywhere, and she has more to learn!

And this knowledge is not just something that can be solved by looking for some information and reading some books.

"Yes." Yan Yixin nodded approvingly.

Ann's laughter was a little sharp: "This little girl has a good understanding." If you were born into a diamond family, you are probably a top cutter. ”

Yan Juan was a little sneering, only thinking that it was An's politeness. Who knew that Yan Yixin also agreed: "Yes, her fingers are extremely dexterous, and her congenital conditions are very good." ”

PS: Piggy has a date at night, so it may be a little late to add a new chapter in the evening. Thank you again for your support!