CN105639901A

CN105639901A - Machining method of princess cut diamond

Info

Publication number: CN105639901A
Application number: CN201610184745.7A
Authority: CN
Inventors: 李丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-29
Filing date: 2016-03-29
Publication date: 2016-06-08
Anticipated expiration: 2036-03-29
Also published as: CN105639901B

Abstract

A machining method of a princess cut diamond includes: cutting a table top, polishing a square body, machining the bottom, dividing each of the four lower arc-shaped edge of the square body into two arc-shaped edges from the middle, respectively using the middles of the 8 arc-shaped edges as the starting points, using 54-60 degrees to polish angles towards two sides, and polishing 8 triangular faces on the bottom layer; using 40.5-41.5 degrees to polish four pointed faces on the edges, facing the four corners of the square body, of the bottom; machining a crown part, to be more specific, respectively using the four arc-shaped edges of the square body of the table top as the starting edges to use 35-38 degrees to polish four first-layer crown faces towards the waist direction, and leaving the waist 3, wherein the height (h) of the waist 3 accounts for 10-20% of the height (H) of the square body. The machining method has the advantages that the diamond yield can be increased by 10-20%, each diamond of about one karat can save material cost by about 3000-3500 yuan, and the method can also improve the light refraction effect of the princess cut diamond, improve the brightness and fire of the diamond, and allow the diamond to glisten.

Description

A kind of processing method of princess's drill with ferrule stone

Technical field

The present invention relates to a kind of method for processing diamond, the processing method of especially a kind of princess's drill with ferrule stone.

Background technology

Legend Belgium king is when loved daughter gets married, the square diamond of one piece of uniqueness and mystery has been made exclusively for princess, four corner angle represent respectively be very found of, loved, treasure, love, the radiance of flicker signify the flame of happiness, and this is prevailing in Continental Europe " princess's drill with ferrule stone ".

The processing method of existing princess's drill with ferrule stone, generally comprises the steps,

(1), cut off desktop, namely on brill embryo, cut off out substantially square desktop according to designing requirement;

(2), polishing square, respectively with foursquare four edges to waist direction polish, polish the square for forming waist;

(3), process bottom, respectively with four of square below for playing a limit, spend grinding angle (grinding angle refers to the angle between round floor and the cross section of square) with 54 degree-60 on bottom, polish 4 triangular facets; Again on the rib that 4 triangular facets intersect, polish four with 40.5 degree of-41.5 degree and take off point face; With taking off, the rib that point face is intersected repeatedly processes 24 round floors with triangular facet again;

(4), bizet processing, respectively with the foursquare four edges of desktop for playing limit, spend with 35 degree-38 and get four ground floor crowns to waist direction, the foursquare area of desktop reduces the second square forming desktop, again respectively with the second foursquare four edges for playing limit, polishing four second layer crowns with 26 degree of-30 degree, the second foursquare area reduces formation final square desktop further; The rib intersected with adjacent two second layer crowns is for limit, and what be respectively symmetrically on second layer crown polish 8 triangular facets.

Academicly, above-mentioned traditional processing method, is called that square improves the patterning method that glitters, namely bright formula processing method, is in use to the present always.Polish by this way, the princess's drill with ferrule stone polished can be made to have fine light color with fire,, there is the deficiency of two aspects in the princess's drill with ferrule stone polishing out by this polishing mode, one is maximum weight and the maximum gauge that can not retain diamond, and princess's drill with ferrule stone of existing polishing one carat needs just can polish out with the blank diamond of 1.4-1.5 carat; Two be on bottom polish 4 triangular facets time, crossing rib between two adjacent two triangular facets is not easily formed, in order to form the crossing rib between two adjacent two triangular facets, require the triangular facet that polishing is bigger sometimes, at this moment will result in the princess's drill with ferrule stone being up to lighter, do not reach predetermined weight.

Summary of the invention

It is an object of the invention to for the problems referred to above, while providing a kind of light fine at maintenance diamond color with fire to society, take into account again reservation diamond maximum weight and maximum gauge, and on bottom during polishing triangular facet, the rib intersected between adjacent two triangular facets is more prone to the princess side's method for processing diamond realized.

The technical scheme is that the processing method designing a kind of princess's drill with ferrule stone, comprise the steps,

(1), cut off desktop, namely on brill embryo, cut off out desktop according to designing requirement;

(2), polishing four directions body, based on desktop to waist direction polish, polish the cubic body that four limits for forming waist are substantially curved;

(3), process bottom, in being met on four arc lower limits of four directions body, be divided into eight arc limits, during polishing, respectively with the middle part on eight arc limits for starting point, spend grinding angle to both sides with 54 degree-60, bottom polish 8 triangular facets; Face toward in bottom on the rib at four angles of body, four directions again, polish four with 40.5 degree of-41.5 degree and take off point face; With taking off, the rib that point face is intersected repeatedly processes 24 round floors with triangular facet again;

(4), bizet processing, respectively with four arc limits of the cubic body of desktop for playing a limit, spend with 35 degree-38 and polish four ground floor crowns to waist direction, and reserve waist 3, the height (h) of waist 3 accounts for the 10%-20% of square height (H); The area of desktop reduces formation the first square, more respectively with first foursquare four tops for playing limit, polish four second layer crowns with 26 degree of-30 degree, and the first foursquare area reduces formation final square desktop further; With the rib intersected of adjacent two second layer crowns for playing limit, what be respectively symmetrically on second layer crown polish 8 triangular facets.

As improvement of the present invention, described every arc is that the plane that head and the tail connect mutually by several is constituted.

Due to the fact that and have employed two measures, it is possible to improve the yield rate 10%-20% of diamond, with current calculation of price, every about 1 carat can material saving cost about 3000-3500 unit; Traditional polishing process, it is necessary to 1.4-1.5 carat just can polish princess's drill with ferrule stone of about 1 carat, the polishing process of the present invention has only to about 1.3 carats just can polish princess's drill with ferrule stone of about 1 carat; Reason is, a measure during this is bright is that waist is designed as the tetragon that the limit of approximate arc is constituted, and a part of yield rate can be improved in more traditional square limit; By traditional 4 triangular facets of polishing on bottom, become 8 triangular facets, a part of yield rate can be improved again; Additionally, respectively with the middle part on eight arc limits for starting point, spend grinding angle to both sides with 54 degree-60, bottom polish 8 triangular facets, being possible not only to improve yield rate, the rib also helped between adjacent two triangular facets becomes easy shaping, and this is conducive to following process;Again, after 4 traditional triangular facets being become 8 triangular facets, it is also possible to improve the light refraction effect of princess's drill with ferrule stone, the light improving diamond is color with fire, makes diamond give out sparking brilliance.

Accompanying drawing explanation

Fig. 1 is the planar structure schematic diagram of princess side of the present invention diamond polishing desktop.

Fig. 2 is Fig. 1 planar structure schematic diagram overlooked.

Fig. 3 is the planar structure schematic diagram of princess side of the present invention diamond polishing four directions body.

Fig. 4 is Fig. 3 planar structure schematic diagram overlooked.

Fig. 5 is the diamond polishing bottom surface, princess side of the present invention planar structure schematic diagram when starting.

Fig. 6 is Fig. 5 planar structure schematic diagram looked up.

Fig. 7 is the planar structure schematic diagram after 8 triangular facet polishings of princess's drill with ferrule stone of the present invention.

Fig. 8 is Fig. 7 planar structure schematic diagram looked up.

Fig. 9 be princess's drill with ferrule stone of the present invention take off point face and round floor is polished the planar structure schematic diagram after successfully.

Figure 10 is Fig. 9 planar structure schematic diagram looked up.

Figure 11 is the planar structure schematic diagram after the ground floor crown polishing of princess's drill with ferrule stone of the present invention.

Figure 12 is Figure 11 planar structure schematic diagram overlooked.

Figure 13 is the planar structure schematic diagram after the second layer crown polishing of princess's drill with ferrule stone of the present invention.

Figure 14 is Figure 13 planar structure schematic diagram overlooked.

Figure 15 is the planar structure schematic diagram after the triangular facets polishing of princess's drill with ferrule stone of the present invention.

Figure 16 is Figure 15 planar structure schematic diagram overlooked.

Detailed description of the invention

Below in conjunction with accompanying drawing, the invention will be further described:

The processing method that the present invention discloses a kind of princess's drill with ferrule stone to society, comprises the steps,

Refer to Fig. 1 and Fig. 2, cut off desktop, namely on brill embryo 1, cut off out desktop 2 according to designing requirement, owing to boring the surface imperfection of embryo 1, so the desktop cuing off out is also in irregular square (see figure 2);

Refer to Fig. 3 and Fig. 4, polishing four directions body, polish to waist direction based on desktop 2, polish the cubic body on four substantially curved limits, limit 21 for forming waist; In the present embodiment, described every arc-shaped side 21 is that planes 22 that mutually head and the tail connect by several are constituted, so so that the top view of desktop 2 looks like and constituted tetrahedron by four arc-shaped sides, the weight of diamond can be retained to greatest extent, and do not affect the further polishing of follow-up crown.

Refer to Fig. 5 to Fig. 8, processing bottom, it is divided into eight arc limits 23 in being met on four arc lower limits 21 of four directions body, during polishing, respectively with the middle part on eight arc limits 23 for starting point, grinding angle is spent with 54 degree-60 to both sides, bottom polish 8 triangular facet 24(wherein, Fig. 5 and Fig. 6 is illustrated that state when only having polished a triangular facet 24, the state that all triangular facets 24 shown in Fig. 7 and Fig. 8 all complete), this polishing mode can improve the yield rate of diamond on the one hand, the rib between adjacent two triangular facet can be made easily to shape on the other hand; Face toward in bottom on the rib at four angles of body, four directions again, polish four with 40.5 degree of-41.5 degree and take off point face 25; With taking off, the rib that point face 25 is intersected repeatedly processes 24 round floor 26(referring to Fig. 9 and Figure 10 with triangular facet 24 again);

Refer to Figure 11 and Figure 12, bizet is processed, and respectively with four arc limits 21 of the cubic body of desktop for playing limit, spends with 35 degree-38 and polish four ground floor crowns 31 to waist direction, and reserving waist 3, the height (h) of waist 3 accounts for the 10%-20% of square height (H);The area of desktop reduces formation the first square 32;

Referring to Figure 13 and Figure 14, more respectively with four tops 33 of the first square 32 for playing limit, polish four second layer crowns 34 with 26 degree of-30 degree, the area of the first square 32 reduces formation final square desktop 35 further;

Referring to Figure 15 and Figure 16, with the rib intersected of adjacent two second layer crowns 34 for playing limit, what be respectively symmetrically on second layer crown 34 polish 8 triangular facets 36.

Claims

1. a processing method for princess's drill with ferrule stone, comprises the steps,

2. the processing method of princess's drill with ferrule stone according to claim 1, it is characterised in that: described every arc is that the plane that head and the tail connect mutually by several is constituted.