朗色林科技股份有限公司

online store:  Elegance &amp; Radiant to Jadeite https://taipeijadeite.com/  Oriental Jewels https://www.orientaljewelsstore.com/en  Dijin Jadeite https://www.dijinjade.com/en  Heart Of Jadeite https://jewellery.cyberbiz.co/zh-TW  CHUN CULXUAN https://epjade038.waca.shop/tw  In addition to LongServing’s own brand of lab-grown jadeite jewelry, we also supply loose, unset lab-grown jadeite stones to jewelry designers and brands worldwide. The price and quantity can be discussed in person or via email.   

Loose stone

Cubic Craft Limited

Lab Diamond (CVD, HPHT)- COLOR:   When comparing CVD vs HPHT diamonds, there is no difference other than the process used to create them.  You will not be able to tell the difference between HPHT vs CVD diamonds. Both methods are capable of producing the full range and quality of real diamonds that are optically, chemically, andphysically identical to earth-grown diamonds.  We could delve into the technical details of each method and elaborate on all the differences in the production process, but we believe this would be a waste of time, at worst leading to confusion and misguidance.As you are aware, each and every one of our lab-grown diamonds are industry certified by leading certifiers. Therefore, when choosing a diamond, focus on trying and the highest possible color and size within your budget. Whether the production method is CVD or HTPT as we have already discussed, it makes absolutely no difference to you. HPHT rough:  CVD rough:  Customization guide:Adjustable parameters include size (0.5-10 carats) and color intensity to match specific design needs.  We can cut many shape as you like:    

Lab Grown diamond(CVD,HPHT) Round 1cts, 2cts, 3 cts, DEF,VVS, VS,0.01-10CTS

Lab Diamond (CVD, HPHT)- COLOR:  We can do Custom Jewelery, tell us your requirement (select diamond size/color/certification, what material of jewelry/weight, jewelry design drawing) we can do from 1PCS.    When comparing CVD vs HPHT diamonds, there is no difference other than the process used to create them.  You will not be able to tell the difference between HPHT vs CVD diamonds. Both methods are capable of producing the full range and quality of real diamonds that are optically, chemically, andphysically identical to earth-grown diamonds.  We could delve into the technical details of each method and elaborate on all the differences in the production process, but we believe this would be a waste of time, at worst leading to confusion and misguidance.As you are aware, each and every one of our lab-grown diamonds are industry certified by leading certifiers. Therefore, when choosing a diamond, focus on trying and the highest possible color and size within your budget. Whether the production method is CVD or HTPT as we have already discussed, it makes absolutely no difference to you. HPHT rough:  CVD rough:  Customization guide:Adjustable parameters include size (0.5-10 carats) and color intensity to match specific design needs.   We can cut many shape as you like:    

Lab  diamond(CVD,HPHT)SQ princess 1cts, 2cts, 3 cts, DEF,VVS, VS, 0.5-10CTS

Lab Diamond (CVD, HPHT)- COLOR:   We can do Custom Jewelery, tell us your requirement (select diamond size/color/certification, what material of jewelry/weight, jewelry design drawing) we can do from 1PCS.    When comparing CVD vs HPHT diamonds, there is no difference other than the process used to create them.  You will not be able to tell the difference between HPHT vs CVD diamonds. Both methods are capable of producing the full range and quality of real diamonds that are optically, chemically, andphysically identical to earth-grown diamonds.  We could delve into the technical details of each method and elaborate on all the differences in the production process, but we believe this would be a waste of time, at worst leading to confusion and misguidance.As you are aware, each and every one of our lab-grown diamonds are industry certified by leading certifiers. Therefore, when choosing a diamond, focus on trying and the highest possible color and size within your budget. Whether the production method is CVD or HTPT as we have already discussed, it makes absolutely no difference to you. HPHT rough:  CVD rough:  Customization guide:Adjustable parameters include size (0.5-10 carats) and color intensity to match specific design needs.   We can cut many shape as you like:    

Lab  Pink diamond(CVD,HPHT)SQ princess 1cts, 2cts, 3 cts, DEF,VVS, VS, 1-10CTS

There're 2 popular Lab grown Emerald Green Color Gemstones,One is Zambia Green, another is Colombia Green color. How can you tell a Zambian emerald?Emerald appearance is sometimes associated with its mine location. Colombian emeralds are said to have a warmer and more intense pure green color. Zambian emeralds are said to have a cooler, more bluish green color. Generally, Zambian emeralds are deep green with slight bluish overtone. Lab Zambian Emerald Hydrothermal stone Heart Shape Loose Gemstone  Lab Created Stone color chart:  More shapes are availableble:  CUBIC CRAFT LIMITED (Chang Jiang Gems) build in 1994,we supply Lab stone,such as CVD/HPHT.MOISANITE,SPINEL,CORUNDUM,NANO,OPALNATURAL STONE,GLASS in many shape/size/color. Feel free to contact us if you have any questions. 

Lab Zambian Emerald Hydrothermal stone Heart Shape Loose Gemstone

Lab padparadscha-  Customization guide:Adjustable parameters include size (0.5-20 carats) and color intensity to match specific design needs. For bulk orders,uniformity ensures seamless pairing in multi-stone jewelry sets.  We can cut many shape as you like:   Grown way: ***Czochralski method is a core technology for growing single-crystal gemstones from a melt.This method is homologous with the technology used industrially to grow semiconductor silicon single crystals. Its coreprinciple is as follows: 1.Raw Material Melting:The gemstone's raw materials (e.g., aluminum oxide Al2O3 and dopants) are placed into ahigh-temperature-resistant crucible (e.g., iridium, molybdenum, or graphite crucibles) and heated to extremely hightemperatures (e.g., synthetic ruby requires heating above 2050℃) using induction coils or resistive heating untilcompletely melted.2.Contact and Crystallization: A small, oriented natural or synthetic gemstone seed crystal is slowly lowered and broughtinto contact with the melt surface.3.Pulling and Rotation: Under strictly controlled conditions, the seed crystal is slowly pulled upward while simultaneouslyrotating. The melt at the interface between the seed crystal and the melt continuously cools and crystallizes according tothe crystal structure of the seed, thereby growing a single crystal gemstone with the same orientation as the seed.4.Process Control: The entire process requires precise control of temperature gradient, pulling rate (typically 6-15millimeters per hour), and rotation speed to ensure uniformity and quality of crystal growth.Common steps in the process include "necking, shoulder expansion, diameter control, and tailing" to optimize the crystalstructure.Gemstone crystals grown by this method exhibit high optical homogeneity, low dislocation density, and can be grown tolarge sizes.It is one of the primary production methods for high-quality synthetic gemstones, especially corundum family gems.   

 Lab Padparadscha, Heart Shape gemstones 8x10, VVS, VS,1-10CTS

Lab padparadscha- Customization guide:Adjustable parameters include size (0.5-20 carats) and color intensity to match specific design needs. For bulk orders,uniformity ensures seamless pairing in multi-stone jewelry sets.  We can cut many shape as you like:   Grown way: ***Czochralski method is a core technology for growing single-crystal gemstones from a melt.This method is homologous with the technology used industrially to grow semiconductor silicon single crystals. Its coreprinciple is as follows: 1.Raw Material Melting:The gemstone's raw materials (e.g., aluminum oxide Al2O3 and dopants) are placed into ahigh-temperature-resistant crucible (e.g., iridium, molybdenum, or graphite crucibles) and heated to extremely hightemperatures (e.g., synthetic ruby requires heating above 2050℃) using induction coils or resistive heating untilcompletely melted.2.Contact and Crystallization: A small, oriented natural or synthetic gemstone seed crystal is slowly lowered and broughtinto contact with the melt surface.3.Pulling and Rotation: Under strictly controlled conditions, the seed crystal is slowly pulled upward while simultaneouslyrotating. The melt at the interface between the seed crystal and the melt continuously cools and crystallizes according tothe crystal structure of the seed, thereby growing a single crystal gemstone with the same orientation as the seed.4.Process Control: The entire process requires precise control of temperature gradient, pulling rate (typically 6-15millimeters per hour), and rotation speed to ensure uniformity and quality of crystal growth.Common steps in the process include "necking, shoulder expansion, diameter control, and tailing" to optimize the crystalstructure.Gemstone crystals grown by this method exhibit high optical homogeneity, low dislocation density, and can be grown tolarge sizes.It is one of the primary production methods for high-quality synthetic gemstones, especially corundum family gems.   

Lab Padparadscha, Octagon(Emerald shape) 8x10, VVS, VS,1-10CTS

Lab Grown Padparadscha, Cushion 8x8, VVS, VS,1-10CTS

Lab Grown Padparadscha, Pear 8x10, VVS, VS,1-10CTS

Why Choose Lab Grown PARAIBA? It possesses the same enchanting neon blue color as natural Paraiba tourmaline, but at a much lower price, and is produced in a sustainable and environmentally friendly manner. Affordable luxury- Enjoy the same neon luster and brilliant radiance without having to pay a high price.Environmentally friendly - No mining required, no damage to the ecology - Only pure and responsibly created beauty.Exactly the same appearance as natural Paraiba stones - Manufactured with cutting-edge technology, its optical properties are exactly the same as those of natural Paraiba stones.Wuzhou Gemstone Lab Created Paraiba Tourmaline Yttrium Aluminium Garnet Oval Loose Gemstone  Lab Created Stone color chart:  More shapes are available:  CUBIC CRAFT LIMITED (Chang Jiang Gems) build in 1994,we supply Lab stone,such as CVD/HPHT.MOISANITE,SPINEL,CORUNDUM,NANO,OPALNATURAL STONE,GLASS in many shape/size/color. Feel free to contact us if you have any questions. 

Wuzhou Gemstone Lab Created Paraiba Tourmaline Yttrium Aluminium Garnet Pear Loose Gemstone 

Lab Grown Tsavorite Oval

Lab Grown Tsavorite Octagon 

How theseLab grown gemstonesare made?Most of them are created with the methods byPulled Czochralski , TheCzochralski process, uses radio waves to melt the aluminum oxide. A rod tipped with a seed crystal is inserted into the mixture and slowly rotated and pulled out, creating a column of Colored stones.  Cornflower Blue Sapphire Lab Created Round Cut Loose Gemstones Wholesale Price for Jewelry Making  Lab Created Stone color chart:  More shapes are availableble:  CUBIC CRAFT LIMITED (Chang Jiang Gems) build in 1994,we supply Lab stone,such as CVD/HPHT.MOISANITE,SPINEL,CORUNDUM,NANO,OPALNATURAL STONE,GLASS in many shape/size/color. Feel free to contact us if you have any questions. 

Cornflower Blue Sapphire Lab Created Round Cut Loose Gemstones Wholesale Price for Jewelry Making

Lab Sapphire Royal Blue Oval

Cubic Zircon Apple Green Ice Crushed stone

Lab Colombia Emerald Round

How theseLab grown gemstonesare made?Most of them are created with the methods byPulled Czochralski , TheCzochralski process, uses radio waves to melt the aluminum oxide. A rod tipped with a seed crystal is inserted into the mixture and slowly rotated and pulled out, creating a column of Colored stones. Lab Grown Blue Sapphire Asscher Shape Cornflower Blue Lab Grown Sapphire Gemstone  Lab Created Stone color chart:  More shapes are availableble:  CUBIC CRAFT LIMITED (Chang Jiang Gems) build in 1994,we supply Lab stone,such as CVD/HPHT.MOISANITE,SPINEL,CORUNDUM,NANO,OPALNATURAL STONE,GLASS in many shape/size/color. Feel free to contact us if you have any questions. 

Oval Cut Gems Lab Grown Cornflower Blue Sapphire Wholesale Gemstones

We cut lab grown diamond, if you need please contact us. The small size normal is HPHT, big size from 1cts above is CVD. Without certification or with certification is different price.  

CVD and HPHT lab grown diamond DEF VVS Round & Fancy shape

Shenzhen Dikai Industrial Co Ltd

 GemTrue Veritas: Diamond &ndash; CVD/HPHT &ndash; Moissanite Tester  	 At a glance&hellip; 	 The only machine available that tests for Diamond, CVD/HPHT, and Moissanite 	 100% accuracy for fully trustworthy test results 	 Pocket-sized tester for loose gemstones 	 Straightforward and easy to use design suits the needs of anybody out there   GemTrue Veritas: Diamond &ndash; CVD/HPHT &ndash; Moissanite Tester  	 The Veritas CVD Diamond Tester is the newest tester from Gemtrue. This unique device is the only tester on the market that is capable of distinguishing between natural Diamond, CVD/HPHT, and Moissanite. If you&rsquo;re looking for a pocket-sized CVD diamond tester that has it all, the GemTrue Veritas is the perfect gadget for you. This superior tester has been designed and manufactured in-house by our British engineers to ensure it meets the highest industry standards. With this beautiful gizmo at your side, distinguishing diamond, CVD-HPHT, and Moissanite has never been easier.&nbsp; 	 This GemTrue Veritas CVD Diamond tester features an easy to use and straightforward design. Thanks to its compact body, you can easily carry it along no matter where you&rsquo;re headed. The Veritas CVD Diamond tester is powered by four regular AAA batteries. Additionally, it comes with a micro-USB input that allows you to charge it through your laptop, PC, or power bank. With its low battery warning and automatic shut off feature, this CVD diamond tester lets you take the most out of its battery life.&nbsp; 	 &nbsp;Product Dimensions:&nbsp;125 x 58 x 35mm (4.9 x 2.2 x 1.4in)&nbsp; 	 Product Weight:&nbsp;105g (0.23lb)&nbsp; 	 Battery Type:&nbsp;Standard USB Cable for powering.&nbsp; 	 Or 4 x AAA battery&nbsp; 	 Battery Life:&nbsp;approximately 1 minutes of continuous use&nbsp; 	 Low Battery Warning:&nbsp;yes&nbsp; 	 LED Display:&nbsp;yes&nbsp; 	 Vocal Test Results:&nbsp;yes&nbsp; 	 Operating Temperature:&nbsp; 	 Operating temperature: 18&deg;C - 28&deg;C (64&deg;F - 82&deg;F)&nbsp; 	 Storage temperature: 35&deg;C - 53&deg;C (95&deg;F - 127&deg;F)   Package Content&nbsp;:  	 1x DK10100 Veritas GemTrue CVD and Moissanite Tester&nbsp; 	 1x User manual&nbsp; 	 1x USB cable&nbsp; 	 1x carrying Velvet Pouch&nbsp; 	 1x Black Zip case 	 Diamond Tester, Moissanite Tester, Diamond Moissanite Tester, Diamond Tools, GemTrue, Gemological Instruments, Real Diamond Teste  

Moissanite Tester Veritas Diamond Tester Diamond Moissanite Tester Real Diamond Tester

 	 Jewellery box DK21664-4B 	 Box size:&nbsp;55 x&nbsp;55 x 16mm 	 Reversible black and white cushion 	 12 boxes in tray 	 Tray size: 33 x 25.50 x 2.50cm 	 Tray stand sold separately 	 We provide one colour free logo on the boxes based on MOQs 	 Patented box 	 Jewellery Box, Jewelry Box, Diamond Box, Display Box, gem box display, gemstone display boxes, loose gemstones display box, gem display boxes, gemstone box display, metal loose diamond box,  

Jewelry Display Box Diamond Display Box Metal Loose Box Gemstone Display Box

 	 Diamond display box tray set 	 12 boxes in tray, box in matt black colour 	 Box size: 40 x 40 x 16mm 	 Tray size: 21.20 x 21.20 x 2.80cm 	 tray stand sold separately 	 Diamond Box, Display Box tray set, Diamond Box set, Gem box, Loose Diamond Box  

Diamond Box Display Box tray set Gem box Loose Diamond Box Jewelry Display Boxes

Diamond Display Tray Set 12 boxes in a set Matte Black 	 Diamond box DK21664-12B 	 Box size:&nbsp;55 x&nbsp;55 x 16mm 	 Reversible black and white cushion 	 12 boxes in tray 	 Tray size: 33 x 25.50 x 2.50cm 	 Tray stand sold separately 	 We provide one colour free logo on the boxes based on MOQs 	 Patented box 	 Diamond Box, Display Box, Diamond Display Box, gem box display, gemstone display boxes, loose gemstones display box, gem display boxes, gemstone box display, metal loose diamond box, diamond box
	  

Diamond Display Tray Set 12 Boxes Jewelry Display Boxes Set Loose Gemstone Display Boxes Set

S K ASIA LTD

Natural Fancy colour diamonds in all shapes and all colours, mainly used big stones as center stone in jewellery, we are dealing in with certicate and without certificate. 

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