CN102975519B - Method for manufacturing natural diamond certificate - Google Patents

Abstract

The invention discloses a method for manufacturing a natural diamond certificate, which comprises the following steps: A. polishing one half of the diamond cut into two halves, and then placing the polished diamond at a fixed position to expose a cut surface; B. irradiating the cut surface with a cathode ray to form a cathodoluminescence picture, shooting the cathodoluminescence picture and making a first photo; C. replacing the polished other half of the diamond, exposing the cut surface of the diamond, irradiating the cut surface by using cathode rays to form a cathode luminescence picture phase, shooting the cathode luminescence picture phase, making a second picture, and symmetrically arranging the second picture and the outline displayed by the first picture; D. and placing the first photo and the second photo into the corresponding diamond-to-diamond certificate. The pair of drilling tools from the same original stone has the same cutting surface, the cutting surface forms extremely similar and symmetrical graph phases under the irradiation of cathode rays, and the graph phase is taken and amplified to be manufactured into a certificate of the pair of drilling tools, so that the pair of drilling tools is identified to be a natural pair.

Description

How to make a natural pair diamond certificate

technical field

The invention relates to a diamond certificate manufacturing method, in particular to a natural diamond certificate manufacturing method.

Background technique

At present, the certification documents about diamonds can generally issue diamond certificates. The diamond certificate is based on the 4C standard, and is a report formed by jewelry experts carefully observing and testing according to strict grading standards in a specific environment. Among them, placing the diamond under a 10x magnifying glass to analyze its size, clarity, cut, polishing, symmetry and other characteristics is a very important part. In addition, it also includes determining the color grade of the diamond, fluorescence detection, etc.

A pair of diamonds is a rough stone cut in half to form a pair of diamonds, and the appearance and shape of the diamond can be processed. The appearance and shape alone cannot directly prove that a pair of diamonds come from the same larger rough stone, because it may come from two Smaller diamonds are processed. In this way, the price of the paired diamonds is increased, the true value of the paired diamonds is concealed, and the identification of a group of paired diamonds also requires a complicated identification process and high identification fees, which is difficult for ordinary consumers to pay attention to. A general diamond certificate comes with a photo of the diamond's appearance, which cannot reflect that the pair of diamonds come from the same rough stone.

Contents of the invention

Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a method for making a natural matching diamond certificate. The obtained matching diamond certificate can clearly show that it comes from the same rough stone and is easy to identify.

In order to overcome the deficiencies of the prior art, the technical solution adopted by the present invention is: a method for making a natural diamond certificate, which includes the following steps: A. After polishing, half of the diamonds cut into two halves are placed in a fixed position, exposing the cut B. Use cathode ray to irradiate the cut surface to form a cathode luminescence image, take the cathode luminescence image and make the first photo; C, replace the other half of the diamond after polishing, expose its cut surface, and use cathode ray to irradiate The cutting surface forms a cathodoluminescence pattern, take the cathodoluminescence pattern and make a second photo and make the second photo and the contour shown in the first photo symmetrically arranged; D, put the first photo and the second photo into the corresponding In the diamond certificate.

As an improvement of the above technical solution, step B1 is added after step B, and the positional relationship and incident angle between the diamond and the cathode ray source are photographed or drawn, and the positioning relationship diagram is retained; after step C, step C1 is added to connect the diamond and the cathode Take pictures or draw pictures of the positional relationship and incident angle between the ray light sources, and keep the positioning relationship diagram.

As an improvement of the above technical solution, in step D, put the first photo into the diamond certificate corresponding to the second photo as the second attached image, and put the second photo into the diamond certificate corresponding to the first photo as the first Attached figure.

In order to achieve the same purpose, the present invention can also adopt another technical solution, the specific steps are as follows: A, the two halves of the diamond cut into two halves after polishing are fixed according to the symmetrical position of the cutting surface, and the cutting surface is exposed; B, using the cathode Radiation irradiates the cut surface to form a cathode luminescence image, takes the cathode luminescence image and makes a photo, divides the photo into two halves and puts it into the corresponding diamond certificate; C, will include two halves of the cathode luminescence The photo of the picture is included in the matching diamond certificate as an attached picture.

The beneficial effects of the present invention are: the pair of diamonds derived from the same rough stone have the same cutting surface, and have basically the same mineral composition at the cutting surface, which can form a very similar and symmetrical cathodoluminescence pattern under the irradiation of cathode rays . Take a picture of the pattern formed by the cutting surface of a pair of diamonds shining under the irradiation of cathode rays, so as to obtain a pair of patterns of the same cutting surface of two pairs of diamonds. The pattern is a color pattern, and it is a very similar symmetrical pattern. This can directly reflect that the pair of diamonds come from the same rough stone. The above-mentioned symmetrical color pattern is just equivalent to the appearance of this diamond, and this figure is just equivalent to the photo of diamond when being enlarged and made into a photo. This photo can be configured individually or inserted into the diamond certificate. Fix the pair of diamonds and irradiate them with cathode rays. After taking the picture, enlarge it and compare it with the photo of the diamond to identify whether the photo corresponds to the photo of the diamond, so as to identify whether the pair of diamonds come from the same rough stone. This is also an identification The Easy Path to Diamonds.

Description of drawings

Fig. 1a is a sampling diagram of the cathodoluminescence phase of the cut surface of half of the drill according to the first embodiment of the present invention.

Fig. 1b is a sampling diagram of the cathodoluminescence image of the other half of the cut surface of the drill according to the first embodiment of the present invention.

Fig. 2a is a sampling diagram of the cathodoluminescence phase of the cut surface of half of the drill according to the second embodiment of the present invention.

Fig. 2b is a sampling diagram of the cathodoluminescence pattern of the cutting surface of the other half of the drill according to the second embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below.

It comprises the following steps: A. polishing one half of the diamond cut in half and placing it in a fixed position to expose the cutting surface; B. irradiating the cutting surface with cathode rays to form a cathode luminescence image, and taking the cathode luminescence image And make the first photo; C, replace the other half of the diamond after polishing, expose its cutting surface, use cathode ray to irradiate the cutting surface to form a cathode luminescence pattern, take the cathode luminescence pattern and make a second photo and make the second The photos are arranged symmetrically with the outline shown in the first photo; D. Put the first photo and the second photo into the corresponding pair of diamond certificates.

Pairs of diamonds from the same rough stone have the same cutting face, and have basically the same mineral composition at the cutting face, which can form a very similar and symmetrical cathode luminescence pattern under cathode ray irradiation. Take a picture of the pattern formed by the cutting surface of a pair of diamonds shining under the irradiation of cathode rays, so as to obtain a pair of patterns of the same cutting surface of two pairs of diamonds. The pattern is a color pattern, and it is a very similar symmetrical pattern. This can directly reflect that the pair of diamonds come from the same rough stone. The above-mentioned symmetrical color pattern is just equivalent to the appearance of this diamond, and this figure is just equivalent to the photo of diamond when being enlarged and made into a photo. This photo can be configured individually or inserted into the diamond certificate. Fix the pair of diamonds and irradiate them with cathode rays. After taking the picture, enlarge it and compare it with the photo of the diamond to identify whether the photo corresponds to the photo of the diamond, so as to identify whether the pair of diamonds are a natural pair, that is, whether they come from the same diamond. Rough, which is also an easy way to identify diamonds. Two pairs of diamonds are separated for a period of time, as long as you find a photo of the diamond, you can use it for comparison to find the corresponding diamond of the natural pair, and you can easily find the two diamonds of the natural pair among many diamonds.

Regardless of whether mineral crystals grow in a natural environment or an artificial environment, the main component elements, auxiliary elements, trace elements or impurity elements attracted by each crystal face are different or the attachment positions are different. When the surface of the crystal is irradiated by high-energy electron beams (cathode rays), different elements will emit light of different colors and shades, and because of the different positions and angles, the crystal surface will show colorful patterns. When a crystal is divided into two halves, the split planes of the two half crystals are excited by cathode ray into two cathodoluminescence patterns, and the split planes will show very similar like mirror symmetry due to the symmetry of composition, structure, shape and position of the two images. Fig. 1a and Fig. 1b are sampling diagrams of two cathodoluminescence images of a pair of cutting faces of a pair of drills in one embodiment, and Fig. 2a and Fig. 2b are two cathodes of a pair of cutting faces of a pair of drills in another embodiment A sample image of the luminescence phase. Both pairs of pictures show the symmetry and similarity of the images of the natural pair diamonds at the splitting plane, so it can be determined whether the pair diamonds are a natural pair and whether they come from the same rough stone. When this two symmetrical crystals and two symmetrical pictures are sold to a couple or a couple, it has an excellent commemorative significance.

More preferably, step B1 is added after step B, and the positional relationship between the diamond and the cathode ray source and the angle of incidence are photographed or drawn, and the positioning relationship diagram is retained; after step C, step C1 is added to compare the relationship between the diamond and the cathode ray source. Take photos or draw pictures of the positional relationship between them and the incident angle, and keep the positioning relationship map, so as to accurately record the ray angle, so that the positional relationship between the diamond and the cathode ray light source can be easily set in the subsequent process, and the same natural pairing certificate can be produced again , It is also convenient to find the positional relationship between the diamond and the cathode ray light source for fingerprint verification when identification is required, and improve identification efficiency.

More preferably, in step D, insert the first photo into the diamond certificate corresponding to the second photo as the second attached image, and insert the second photo into the diamond certificate corresponding to the first photo as the first attached image, The first attached picture is the second photo, and the second attached picture is the first photo, so that two diamonds corresponding to a natural pair can be found more conveniently and clearly.

The present invention also proposes another similar method for making a natural pair diamond certificate, which includes the following steps: A, arranging the two halves of the diamond cut into two halves in a fixed position symmetrically according to the cutting surface, and exposing the cutting surface; B, Use cathode rays to irradiate the cut surface to form a cathode luminescence image, take the cathode luminescence image and make a photo, divide the photo into two halves and put it into the corresponding diamond certificate; C, will include two halves The photo of the cathodoluminescence image is included in the matching diamond certificate as an attached image. This natural pair diamond certificate production method can obtain the same technical effect as the aforementioned method. The obtained diamond certificate can easily and quickly find the two natural pair diamonds, and easily identify whether the two natural pair diamonds are from the same rough.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.

Claims (4)

1. A method for making a natural pair diamond certificate, comprising the following steps: A. One half of the diamond cut in half is polished and placed in a fixed position to expose the cutting surface; B. Irradiating the cut surface with cathode rays to form a cathode luminescence image, taking the cathode luminescence image and making a first photo; C. Replace the other half of the diamond after polishing, expose its cutting surface, use cathode rays to irradiate the cutting surface to form a cathodoluminescence pattern, take the cathodoluminescence pattern and make a second photo and make the second photo and the first photo. Displayed profile symmetry settings; D. Put the first photo and the second photo into the corresponding diamond certificate. 2. The method for making a natural pair diamond certificate according to claim 1, characterized in that: step B1 is added after step B, the positional relationship between the diamond and the cathode ray light source and the angle of incidence are photographed or drawn, and the positioning relationship diagram is retained ; Add step C1 after step C, take pictures or draw pictures of the positional relationship and incident angle between the diamond and the cathode ray light source, and keep the positioning relationship diagram. 3. The method for producing a pair of diamond certificates according to claim 1, characterized in that: in step D, the first photo is inserted into the pair of diamond certificates corresponding to the second photo as the second attached figure, and the second photo is placed Insert the first photo into the corresponding diamond certificate as the first attached picture. 4. A method for making a natural pair diamond certificate, comprising the following steps: A. After polishing, the two halves of the diamond cut in half are symmetrically arranged in a fixed position according to the cutting surface, and the cutting surface is exposed; B. Using cathode rays to irradiate the cut surface to form a cathode luminescence image, take the cathode luminescence image and make a photo, divide the photo into two halves and put it into the corresponding diamond certificate; C. Put the photo including the cathodoluminescence image of the two halves into the matching diamond certificate as an attached image.