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WORLDWIDE GEMS LTD.

1. Rough Amethyst2. Preform
3. Partially Cut4. Finished Amethyst


Preforming Laps Polishing Laps Master Laps Miscellaneous Facet/Cab Rough Ultra-Tec

Faceting Supplies:

Below you will see a selection of some of the supplies and equipment used in Faceting. If you do not see what you are looking for or require more information about anything please contact us at info@worldwidegems.co.nz 

If you require more information about any products we have listed please see below a list of the websites we are distributors for.  We can also order anything you require from these suppliers  although shipments of orders are subject to practicalities of having sufficient  size/quantity   to satisfy supplier minimum orders. 

For Batt Laps information and technical  details from Gearloose Lapidary:  www.gearloose.com  

For Crystalite products and information : www.abrasive-tech.com/crystalite.aspx   

For Raytech products and information:  www.raytech-ind.com


Preforming Laps:

For fast removal/grinding away of surplus material use either 80 grit (fastest), 180, 260 or 360 laps. These course laps will have to be followed by finer grit sized laps sizes of 600 or 1200 (slowest) to prepare surface for fine smoothing and pre-polishing or polishing. In many cases you will be able to go directly from a 1200 lap to pre-polish or even polishing. Either use a solid lap or a ‘topper lap” with a master lap as a support for preforming or rough shaping. Obviously the lap grit size should be chosen relative to the amount of material that needs to be removed. Remember that a coarse grit will leave deeper grinding marks that must be totally smoothed/ removed before polishing is attempted.

Crystalite: The Standard brand diamond discs (laps) are used by professional cutters worldwide and are excellent for faceting. They are designed to exceed the most rigid requirements. The aluminium backs are ground flat and parallel to exacting standards. Additionally, all the Standard brand discs are made with 100% diamond and bonded with a hard electroplated nickel. They are also available with a ¼ inch-20 thread screw back mount, allowing you to utilize the full face of the disc. Other diameters, mesh sizes and arbour hole sizes are available. Crystalite is one of the brands marketed by the worlds leading manufacturer of grinding and polishing products, Abrasive Technology.

Economy Brand: These are products that are manufactured in Asia to a decent standard but not as high as the “branded” international multinational corporations. They are designed to be a less costly alternative to the top brands. The old adage applies..you get what you pay for.. and generally the economy brands will not have the same degree of precision or longevity. However, they are well priced and good value for the money but you should not expect the same level of life from these products.

Nu-Bond by Raytech:  NuBond is a very effective  pre-polish facet lap. A NuBond lap requires little if any break-in to produce smooth finishes. Compared to an electrobond lap, it will scratch less and will cut more consistently over a longer service life.  Multilayer NuBond laps have a higher concentration of friable, self-sharpening diamond bonded directly to a solid aluminum backer. NuBond laps are precise and true running, lightweight and corrosion resistant.   Important: To replace an electrobond lap, select a NuBond which is one grit coarser than the electrobond. Even though coarser, NuBond will scratch and chip less.  So a 325 grit NuBond replaces a 600 Electrobond, a 600 NuBond replaces a 1200 Electrobond and a 1200 NuBond replaces a 3000 Electrobond.

80 GRIT ECONOMY PREFORMING/GRINDING LAP80 GRIT ECONOMY PREFORMING TOPPER LAP 1 MM
Economy preforming/grinding lap. 7¾ inches in diameter (20 CM), 9mm in thickness with a 12.7mm arbour hole ( ½ inch). Solid steel diamond plated with 80 grit for quick stock removal. Must be dried after use or will rust. Economy preforming topper lap. 7¾ inches in diameter (20 CM), 1mm in thickness with a 12.7mm arbour hole ( ½ inch). Solid steel diamond plated with 80 grit for quick stock removal. Must be dried after use or will rust.

FSPE80

$NZ 56.00

FSPET80

$NZ 31.00

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180 GRIT ECONOMY PREFORMING/GRINDING LAP260 GRIT ECONOMY PREFORMING/GRINDING LAP
Economy preforming/grinding lap. 7¾ inches in diameter (20 CM), 9mm in thickness with a 12.7mm arbour hole ( ½ inch). Solid steel diamond plated with 180 grit for quick stock removal. Must be dried after use or will rust. Economy preforming/grinding lap. 7¾ inches in diameter (20 CM), 9mm in thickness with a 12.7mm arbour hole ( ½ inch). Solid steel diamond plated with 260 grit for quick stock removal. Must be dried after use or will rust.

FSPE180

$NZ 54.00

FSPE260

$NZ 54.00

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SHOPPING CART SELECTIONYou can change Quantity Ordered in Shopping Cart

Total $NZ 0.00 (excl. GST)


260 GRIT ECONOMY PREFORMING TOPPER LAP 1 MM260 GRIT TOP QUALITY  PREFORMING/GRINDING LAP360 GRIT ECONOMY PREFORMING/GRINDING LAP600 GRIT ECONOMY PREFORMING LAP
Economy preforming topper lap. 7¾ inches in diameter (20 CM), 1mm in thickness with a 12.7mm arbour hole ( ½ inch). Solid steel diamond plated with 260 grit for quick stock removal. Must be dried after use or will rust. Superior grade 260 grit preforming/grinding lap manufactured by Crystalite, a US supplier. 8 inches (203mm) in diameter and 11 mm thick with ½ inch arbour. Aluminium base with diamond plated cutting surface. Economy preforming/grinding lap. 7¾ inches in diameter (20 CM), 9mm in thickness with a 12.7mm arbour hole ( ½ inch). Solid steel diamond plated with 360 grit for quick stock removal. Must be dried after use or will rust. Economy preforming lap. 7¾ inches in diameter (20 CM), 9mm in thickness with a 12.7mm arbour hole (½ inch). Solid steel diamond plated with 600 grit for slow stock removal. Must be dried after use or will rust.

FSPET260

$NZ 28.00

FSPS260

$NZ 186.00

FSPE360

$NZ 53.00

FSPE600

$NZ 53.00

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600 GRIT ECONOMY PREFORMING TOPPER LAP 1 MM600 GRIT TOP QUALITY PREFORMING LAP1200 GRIT ECONOMY PREFORMING LAPNUBOND SUPERIOR GRADE 325 GRIT PREPOLISH  LAP 6 INCH
Economy preforming topper lap. 7¾ inches in diameter (20 CM), 1mm in thickness with a 12.7mm arbour hole ( ½ inch). Solid steel diamond plated with 600 grit for slow stock removal. Must be dried after use or will rust. Superior grade 600 grit preforming lap manufactured by Crystalite, a US supplier. 8 inches (203mm) in diameter and 11 mm thick with ½ inch arbour. Aluminium base with diamond plated cutting surface. Economy preforming lap. 7¾ inches in diameter (20 CM), 9mm thick with a 12.7mm arbour hole ( ½ inch). Solid steel diamond plated with 1200 grit for very slow stock removal. Must be dried after use or will rust. NuBond 6 inch (15 CM) lap 6mm thick 325 grit are superior grade grinding laps manufactured by Raytech . Multilayered they have a higher concentration of friable, self sharpening diamonds bonded directly to an Aluminium base.

FSPET600

$NZ 28.00

FSPS600

$NZ 200.00

FSPE1200

$NZ 62.00

FSPN6325

$NZ 291.00

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NUBOND SUPERIOR GRADE 600 GRIT PREPOLISH  LAP 6 INCH
NuBond 6 inch (15 CM) lap 6mm thick 600 grit are superior grade fine grinding laps manufactured by Raytech . Multilayered they have a higher concentration of friable, self sharpening diamonds bonded directly to an Aluminium base.

FSPN6600

$NZ 291.00

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Polishing Laps and Supplies:

There are many different options available when polishing gems. We are listing some we use below but can source other options for you if required. Tin laps are charged with either a diamond slurry or a selected oxide compound such as cerium oxide, chrome oxide etc. With Tin laps it is obviously better to choose one option and stick to it so as to avoid cross-contamination of differing polishes. We carry and represent the following Tin Lap manufacturers.

  • Crystalite Tin Laps manufactured by Abrasive Technology in the U.S.A.
  • Batt Laps Tin and cast alloy Laps manufactured by  Gearloose Lapidary In the U.S.A.
  • Raytech Tin Laps manufactured by Lyman Products Corporation in the U.S.A.

If you want a little more flexibility Ultralaps are thin, flexible plastic polymers pre-charged with applicable polishing compounds. These are placed on top of a master lap and run with a water drip. The most common types of Ultralaps and usages are shown below:

  • Spectra Ultralaps (high purity Cerium Oxide)- Good for final polish on Quartz family gems and Beryl’s
  • Cerium Oxide-will polish Quartz, Opal, Tourmaline, beryl and some soft stones like Sunstone
  • Alumina Oxide-will polish Beryl, Tourmaline, Garnet, Topaz, Peridot, Danburite etc.
  • Tin Oxide-most cabbing materials, glass and materials containing Quartz, Tourmaline, garnet and Sphene.

Some other polishing options which we stock are:

  • Darkside laps:  These are made by Jon Rolfe of Gearloose Lapidary and are rapidly gaining popularity among faceters.  This lap was created to combat rising metal prices and to create an affordable easy to charge and use lap. These are great performers and are especially effective for Quartzes when used with Cerium Oxide. 
  • Battwing Lap:  This is a one step prepolish/polish lap made by Gearloose Lapidary.  A combination of a Batt Lap around the outer portion of lap and a Darkside on the innner.  This saves having to change Laps when going from Prepolish to polishing.  Stone must be wiped clean in between to prevent contamination.  Film of coolant, carrier and swarf is carried always outward by centrifugal force so obviously final polishing must always be on the inner Darkside.

 

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Master Lap:

Master Laps are designed to be used as a base/support for either thin 1mm “topper laps” used in preforming or the flexible thin polishing laps such as Ultralaps.

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Miscellaneous:

Assorted faceting and cutting supplies.

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