Lu Wenjun nodded: "Yes, so on many occasions, zircon has always been used as a substitute for diamonds." However, its hardness is only 7.5, which is not even comparable to topaz. ”

"I can't tell the difference." Yan Juan doesn't mind acting as an idiot at the right time. The man in front of him has a strong desire to perform. And stupid women have always been more popular with men than smart women.

Lu Wenjun parked the car and opened the car door for her gracefully: "After a while, I will compare zircon and diamond to you, and you will find that it is actually easy to distinguish between them." ”

This jewelry store is the largest of Luk's branches. In the most prosperous area of the city, it occupies eight stores. One of the diamond counters, which occupies an oblong shape in the middle part.

"Young Master, what jewelry are you going to see today?" The manager greeted him personally, and when he glanced at Yan Xuan, he seemed to have two points of disdain.

It seems that Lu Wenjun has a habit of giving his girlfriend jewelry.

What kind of woman can refuse this golden and considerate man? Yan Juan smiled self-deprecatingly, Lu Wenjun was probably disappointed in his "incomprehensible amorous", right? After all, in the past, she treated all jewelry equally, and she couldn't distinguish between good and bad, beautiful and ugly.

"Give me a zircon." Lu Wenjun casually stretched out his hand, and the salesman had already taken out a ring and handed it over.

Lu Wenjun walked to the diamond counter with the ring, pointed to one of the rings and said, "Take this one out and give it to me." ”

Yan Juan looked at the two rings in his palm and shook his head in confusion: "I don't see any difference between them, except that the zircon one is bigger." ”

"Diamonds are homogeneous, while zircon is heterogeneous, and birefringence is obvious. With a normal polarizer, you can easily distinguish between them. ”

"But the average customer doesn't have polarizers, do they?"

"Yes. In fact, it can be distinguished with the naked eye. You see, the bottom edge of the zircon has a double vision. ”

Yan Juan leaned over curiously: "Hey, really! ”

"If you use a magnifying glass, this phenomenon is even more obvious." Lu Wenjun was selling his knowledge and looked at the surprise on Yan Xuan's face very proudly.

She was so close to him because she had forgotten her form. The tip of her nose almost touched the palm of his hand. His head was below his chin, and the scent of shampoo wafted faintly into the tip of his nose, making him feel better than any perfume.

"So it's such a simple way to tell the difference between a real and fake diamond?"

"No, it's just the difference between zircon and diamond, if you use synthetic gemstones to pass off as diamonds, with current technology, you can't tell them apart with the naked eye without special instruments."

"It's not as good as zircon, after all, it's also a mid-range gem." Yan Juan held the two rings and compared them left and right, "Actually, the fire of the diamond is more beautiful." If you don't think it is separated, such a comparison is very obvious. ”

"Of course, the price is a geometric multiple."

Yan Juan nodded thoughtfully: "Diamond ...... It has an extraordinary charm indeed. ”

"Do you like diamonds?" Lu Wenjun asked.

"Who doesn't love diamonds?" Yan Wan replied generally.

"So...... This diamond is yours. Lu Wenjun announced lightly, turning his head into the manager's eyes, "Write it on my account." ”

"No, no, how can you receive such a valuable gift?" Yan Juan was so frightened that he immediately returned the diamond ring to him, "Thank you for your kindness, but it is useless." ”

Lu Wenjun seemed a little surprised: "It is natural for a man to give a woman a gift. ”

"But not such a valuable one." Yan Juan pushed the ring he pushed over again and firmly returned it to his palm. The tail finger hooked unconsciously, and Lu Wenjun suddenly felt that half of his body was numb.

Yan Juan didn't seem to be conscious, bowed his head slightly, and only revealed a snow-white ball on the back of his neck, as delicate as mutton fat and white jade.

Lu Wenjun persuaded again: "For me, this is not precious. This ring, no more than a little three carats, is just a very ordinary gift. ”

"However, for me, it is beyond what is acceptable. Senior Lu, thank you for your generosity, but I can't accept it. Yan Xuan's soft and resolute voice made Lu Wenjun involuntarily take back the ring.

It was the first time he met a girl who refused to accept the diamond, looking down at the dazzling diamond ring in his palm, he didn't feel a little stupid, and he didn't even know that Yan Juan had left the diamond counter.

"Hey, what is this? Neither tourmaline nor topaz should be so expensive......" Yan Wan blinked, "If it's a yellow diamond, the transparency is not like ......"

Lu Wenjun walked over and looked at it, and smiled: "This is a sapphire." ”

Yan Juan rubbed her eyes: "Am I color blind?" Why is the color I see yellow? ”

"It's really a yellow sapphire, and your eyes are not wrong." Lu Wenjun once again had the opportunity to show off, "I think, like most people, you think that sapphires are blue-colored. ”

"Isn't it?" Yan Juan asked suspiciously.

"In fact, all shades of corundum, with the exception of the red corundum gemstone, which we commonly call ruby, are collectively referred to as sapphires in commercial terms. Therefore, this yellow gemstone, the full name, can be a yellow sapphire. ”

"Yellow sapphire?" Yan Wan muttered, "This kind of title seems so strange!" I always thought that corundum only came in two colors, red and blue. ”

"No, in addition to these colors, there are also pink, orange and purple, and these colored sapphires are also collectively known as colored sapphires."

"Fortunately, it is in front of the seniors, otherwise, the foreign appearance can be big." Yan Wan smiled playfully, her eyebrows were like her eyebrows.

"Most people don't understand this." Lu Wenjun made excuses for her, "I'm just running these things at home, so I know more about it." ”

"That's the senior's family is very knowledgeable." Yan Juan lost no time in complimenting, because his tone was sincere, and he did not suspect flattery, which made Lu Wenjun feel as if he had eaten ninety-nine eighty-one ginseng fruits, and his whole body was comfortable.

"If you like it, pick one." When Lu Wenjun said a lot, he regretted it a little.

It is not difficult for him to send a diamond of about one carat. But if Yan Juan chooses a large diamond or a gemstone such as pigeon's blood and cornflower, which is close to legend, he really can't sign it.

"So what's so embarrassing? It's a great pleasure to be able to come and visit often. Yan Juan categorically rejected his kindness, "Thank you, senior." It's not early, it's time for me to go back. ”

Faced with a dazzling array of jewels and jade, she did not feel cramped at all. One is because her nature lacks a more sensual understanding of these gorgeous things, and the other is because in the three years, the jewelry she has worn has been made of almost all the high-end gemstones.

Perhaps, this is the daughter-in-law of the Lu family, the only benefit.