Heman Chen

jewelry design jewelry making gemstones jewelry casting jewelry crafting amber silver organic gemstones gemstone cutting diamond diy jewelry gemological characteristics classification of gemstones jewelry manufacturing heat treatment optimization treatment ruby artificial gemstones jewelry mold making opal garnet gemstone optimization jewelry production gold precious metals platinum jewelry maintenance gemstone setting high-temperature method jewelry making tools vacuum casting jewelry tools zone melting method 3d modeling ivory physical properties wax models dispersion flux method flame fusion method magnifying glass optical terms gemstone polishing turquoise titanium alloy fluorite stainless steel gemstone identification jewelry rendering special optical effects metal accessories faceted gemstone zircon pearls feldspar pearl spinel pearl luster tanzanite tourmaline coral ceramic molds jadeite synthetic gemstones beryl channel setting platinum jewelry tension setting gypsy setting flush setting jewelry settings hair accessories crafting jewels jewelry polishing jewelry drawing techniques material cutting and matching size specifications pave setting lost wax casting prong setting jewelry production process gold crafting crystal electroforming bezel setting gemstone treatment mechanical properties jewelry hand drawing jewelry care gemstone density brooches heat treatment method marker three-point perspective two-point perspective graphics tablet one-point perspective jewelry craftsmanship sapphire invisible setting artificial jewelry infrared absorption spectrum gemstone enhancement ultraviolet-visible absorption chromium ion content molecular orbital theory yellow topaz chemical treatment method gemstones optimization treatment methods identification characteristics irradiation treatment scattering interference high-pressure treatment method diffraction gemstone properties charge transfer corundum gemstone coating color change transition metalions physical optical effects energy band theory inclusion radioactive irradiation method single-crystal gemstones irradiation method color enhancement method ultraviolet fluorescence physical treatment method naming rules of gemstones irradiation jewelry enhancement gemstone internal features gemstone external features gemstone luster gemstone color artificial stones gem identification jadeite quality emerald luster infusion processes irradiation techniques gemstone enhancements gemstone filling diamond coating thermally irradiated diamonds other improving gemstones improving pearl improving amber improving turquoise improving opal improving agate improving jadeite improving corundum gemstones improving beryl gemstones improving diamond improved gemstones improvement methods crystal field theory gemstone colors color-causing ions visible light spectrum range electromagnetic spectrum measurement of gemstone color crystal defects gemstone mineral color color centers pseudo-colored allochromatic idiochromatic saturation hue brightness gemstones colors large instruments in gems chelsea color filter ultraviolet light optical properties of gems gemstone treatments spectroscopy in gems refractometer use microscope techniques optimization treatment content optimization treatment concept history of gem optimization optimization principles jewelry bending tools jewelry cutting tools jewelry measuring tools jewelry workbench zinc aluminum titanium copper precious metal-coated jewelry iridium osmium palladium rhodium ruthenium classification of precious met common metals used in jewelry gemstone processing tools gemstone cleaning market grading standards gems quality inspection tools gemstone defects and causes gemstone polishing technology gemstone processing equipment spherical gemstones gemstones styles gemstone classification gemstones processing gemstone quality analysis bead-shaped gemstones cabochon gemstones bonding gemstones setting tools magnifying tools finishing tools fixing tools measuring and marking tools cutting tools setting workbench types of gemstones aesthetic value jewelry setting equipment jewelry setting tools gemstone inlay materials polishing and buffing doming hammering metal bending metal welding acid washing annealing and quenching drilling filing and shaping cutting metal crafting metal metal working jewelry chemical reagent jewelry polishing tools jewelry welding tools jewelry drill tools jewelry molding tools jewelry striking tools jewelry file repair tools equipment for mass production waistline whispers brightness boost round cuts square cuts oval magic marquise marvels pear-fectly designed heartfelt designs rectangular reflections crystallography of gem mineral electrostatics thermal conductivity infrared spectrometer testing instruments chemical composition geological natural gemstones structure of ivory imitations natural and cultured pearls identification features identification methods classification of jade lapis lazuli serpentine jade quartz jade nephrite waxing treatment diffusion treatment coating treatment dyeing treatment special-shaped gemstone linear gemstone flat surface gemstone gemstone machine adhesion of gemstone gemstone rough stone shaping gemstone adhesives faceting technology gemstone shaping saw blade cutting machine diamond saw blade cutting grinding disc sand discs saw blades grinding wheel gemstone measuring cutting techniques diamond saws gemstone materials gemstone process tools gemstone abrasives faceted gemstone cut design angle&proportion of gemstone gemstone processing waistline drawing methods geometric drawing methods the use of drawing tools gemstone design sizing up linear dimensions shaping the gem classification of optimization rhodochrosite serpentine apatite cordierite kyanite sparkle lovers rare finds affordable luxury peridot sphene prehnite spodumene topaz crystals rare gems elegant designs luxury jewelry gemstone knowledge jewelry lovers chrysoberyl corundum diamonds gemstone world gia certificates jewelry market gemstone smart buying quality gems jewelry insider gemstone guide laser welding technology mechanical polishing tech identification helmeted hornbill rhinoceros horn tortoise shell ammolite petrified wood jade coral jet pearl grades maintainance of pearl quality evaluation of pearl identification of pearl optimazation of pearl nuclear-free pearl nuclear pearls cause of pearls classification of pearls freshwater pearls seawater pearls pearl cultivation pearls' geomological character application history & culture style jewelry diopside andalusite sphalerite lapis-lazuli malachite tibet beads sugilite mechanical polishing mold magic silicone molds cnc jewelry jewelry innovation digital crafting tech in jewelry 3d printing jewelry soft wax wax to riches art of wax wax modeling wheat straw casting wood block casting electroforming stamping sand casting cuttlefish bone casting gold jewelry design k red gold k white gold k yellow gold gold alloys gold jewelry silver jewelry science silver alloy silver tarnish resistant silver jewelry silver metal properties golds purity gold physical properties golds market trends modified gold laser welding jewelry finishing jewelry cleanup jewelry casting defects jewelry wax molding gold silver copper jewelry casting techniques investment casting jewelry silver moldin rapid prototyping cnc engraving jewelry wax models handmade jewelry jewelry polish jewelry workshop jewelry making equipment jewelry life hack jewelry clean and shine precious metals jewelry jewelry authenticity icp spectrometry fire assay xrf testing jewelry purity ethical bling sustainable jewelry luxury trends pgm metals rubber or silicone basic process mold jewelry rubber molds gold chemical stability coldcrucible melt shell method ultra-high-pressure method chemical precipitation method cold crucible melting shell me melting method hydrothermal method gemstone synthesis process principles of gem synthesis history of gem synthesis synthetic gems gemstone synthesis development history production process jewelry material classified gemstone technology eco-friendly jewelry lab-grown diamonds imitation gemstone mammoth ivory ammonite antelope horn rare organic gemstones fossil organic gemstones amorphous mechanical property amorphous optical terms amorphous solids plastics in jewelry glass imitations gemstone amorphous jjadeite fluorescence composition and characteristic improved gems rules improved gems principles physical modification chemical reactions energy activation improving gemstones gem treatments synthetic strontium titanate manufacturing methods artificial gems characters cold crucible melting method melt-guided mold method crystal pulling method reconstructed gemstones assembled gemstones synthetic cubic zirconia synthetic jade synthetic lapis lazuli synthetic malachite synthetic turquoise synthetic opal synthetic aquamarine synthetic chrysoberyl synthetic alexandrite synthetic crystal synthetic spinel synthetic rutile synthetic corundum synthetic emerald synthetic moissanite synthetic diamond gemstone‘s ’fluorescence bivalves (pecten) gastropods (univalves) pearls without a pearl layer shell's classification nautilus pearl quahog pearls tridacna “pearl" abalone pearl melo "pearl" conch "pearl" coral gems coral maintenance roral quality evaluation coral capture and processing coral's identification classification of coral coral gemological characterist coral formation coral culture and causes coral application history amber gemstone classification of amber optimized processing of amber maintenance of amber amber's identification quality evaluation of amber gemological character of amber amber's culture amber's application history natural beauty classification cat's eye effect gemstone origins mechanics properties jade & aggregates gemstone aggregates luminescence of crystal pleochroism of crystal mohs hardness luster and transparency color science dispersion in gemstones crystal mechanics gemstone optics gemstone growth crystal shapes gemstone crystallography symmetry of crystals gemstone crystals classification of crystals crystal forms the concept of crystal gemstone purity standards certificate of gemstones the hallmark of precious metal naming rules for gemstones inclusions in gemstones distribution of gemstone definition of gemstones pinctada martensi abalone shell queen conch shell beaded sphere beading handling of thread ends bracelet design and production ring design and production button knot bracelet double coin knot bracelet snake knot combination bracele braided knot bracelet dynamic triple braid bracelet crown knot bracelet double snake knot bracelet wooden bead bracelet metal accent bracelet crown knot beaded bracelet barrel knot beaded bracelet coiled bead bracelet fabric rosette bracelet jewelry beading techniques fishing line beading technique beading cord elastic cord beading technique single threading cross threading reverse threading forward threading bead return threading single-line bead addition double-line bead addition knotting method knot hiding method single bead line joining multi-bead line joining bead-weaving flat stitch liquid rhythm earrings dragonfly waltz earrings butterfly serenade hairpin oriole’s bloom hairpin design&production of brooch design&production of pendant luminous pearl harmony brooch jade and floral rêverie brooch scented plum fan motif brooch knotted pendants beaded pendants auspicious phoenix knot pendan floral extravaganza silk tasse fortune's eternal knot charm heritage filigree knotwork celestial bead cluster pendant joyous melody bead strand four-sided spherical beading alloy bracelet w colored stone five gemstones in bloom ring crimson jade dream ring velvet rose quartz ring necklace design entwined orb necklace dazzling pearl&diamondnecklace dancing floral bead necklace green & white romance necklace red and black passion necklace double lock auspiciousnecklace floral extravaganza earrings blossom-in-bud earrings turquoise unfolding earrings phoenix amethyst silhouette ea jewelcad basic material effects jewelry effects sandblasting finish effect brushing effect bark texture finish effect engine-turned finish effect diamond-turned setting ring pearl ring ruby pendant black gold pendant diamond accents rendering flamingo techgems digital art jewelry design renderings baguette-cut gemstones pear-cut gemstones teardrop-cut gemstones emerald-cut gemstones other shape cutting gemstones jewelry structure jewelry techniques hand-painted artworks jewelry expression techniques the expression of rings 45° standardized ring painting crafting plain metal rings optical effect & perspective the expression of earrings the expression of brooches the expression of pendants button knot square knot snake knot vajra knots crown knot double connection knot phoenix tail knot double coin knot caisson knot corn knot paracord watch knot braid knot diagonal clove hitch knot round brocade knot auspicious knot shamrock knot cerulean whisper earrings the expression of bracelet jewelry rendering workflow rhino with flamingo & techgems aesthetic review digital paintings jewelry materials jewelry styles jewelry history jewelry origins jewelry classification jewelry characteristics pliers accessories wire clasp knotting techniques basic knotting techniques changing knotting techniques jewelry color techniques mechanical pencil watercolor brush drawing paper drawing templates and rulers highlight pen structure and perspective cutting structures of diff hue/brightness/purity analogous colors: complementary colors primary colors jewelry coloring techniques digital rendering visual presentation 3-dimensional representation watercolor model design renderings justgold jewelry store in hk diamond family zhuishi greenjade jewelrystore jewelry design sketching jewelry size correspondence natural jewelry jewelry origin jewelry design trends gemstones types jewelry types jewelry concept earring necklace ring bracelets and bangles three-piece jewelry design "eternal" theme jewelry theme elements jewelry material selection jewelry theme and associations moissanite labgrownjewelry ethicalshopping diamondalternative market potential moissanite jewelry origin moissanite jewel manufacturer the popularity of moissanite natural moissanite cubic zirconia moissanite appraisal gra & iga of moissanite emerald colored pencil standard hand-drawn three-view material representation earrings rings bracelets alloy rose gold amethyst quartz themed sets necklace design practicing headwear design practicing thematic series design practic "happiness" theme jewelrymatchingwclothing color colors &their representation jewelry matching face shape body type s fashion tips : jewelry display lighting tips color schemes display props multimedia ergonomics display showcase dimensions static and dynamic aisle dimen visual scale exhibition scale psychological scale series jewelry bead affection collection colorful wooden beadcollection turquoise fantasy collection plum blossom elegance collect blue and white harmony jewelry floral lridescent collection jewelry sets oval face heart.shaped face round face square face long face diamond-shaped face jewelry matching &body types jewelry matching&clothing type jewelry design process jewelrydisplaydesign implement jewelrydisplaydesign copywrite design of exhibition spaces floor plan space configuration &division timing and flow jewelry display visual merchandising expression of jewelry display draft phase design development phase confirmation phase floor plan design hand-drawn design renderings computer design renderings four-piece jewelry design jewelry matching with clothing formal rules dominance and emphasis symmetry and balance contrast and harmony rhythm and cadence proportion and scale jewelry store design jewelry display tips exterior design ofjewelrystore appearance design entrance and exit design signage design external lighting design jewelry store window design jewelry exhibition jewelry display design different jewelry mold types wax-set gypsum molds acid-bonded ceramic molds surface finishing wax setting casting wax casting process flow requirements of wax casting common issues and solutions chuck electric soldering iron surgical knife tweezers flat chisel flying disc ring gauge sewing needle electroplating process gold casting silver casting acidbonded ceramic castingmold metal pre-melting jewelry casting process torch melting induction melting gold grades for jewelry jewelery advanced techniques vacuum pressure casting vacuum centrifugal casting vacuum continuous casting jewelry castings jewelry inspect jewelry cleaning gypsum molds pure gold bracelets clasping craftsmanship pure gold rings pendants pure gold earrings auxiliary processes polishing process mechanical processing tech continuous casting profiles machining of sheets materials machining of pipes materials machining of wires materials stamping process vertical continuous casting horizontal continuous casting porous graphite molds processing sheets/pipes/wires jewelry quality control pre-plating treatment post-plating treatment electroplating rhodium plating gold plating electrolytic polishing grinding tools and application polishing brush wheel buffing compound grinding and polishing process ultrasonic wax removal electrolytic degreasing mild etching craft pure gold jewelry chain-type pure gold jewelry pave setting in horizontal row horizontal & parallel setting bright square four-pointed octagram star pave setting scraping line jewelry graver shared prongs setting six-prong setting four-prong setting three-prong setting wax setting sand-cast setting bead setting creative setting jewelry setting methods structural expansion "gemstone" material maintenance chemical reagents cabochon gemstone jewelry application oval-shaped cabochon gemstone drop-shaped cabochon gemstone round brilliance cut gemstone rectangular brilliance cut gem inner shoulder setting half bezel setting bowl-shaped bezel setting double-headed bezel setting reverse-tapered bezel setting micro-pave setting gemstone settings horizontal staggered arrangeme wax model jewelry wax injection jewelry casting models vacuum wax injection automatic wax injection metal mold wax injection wax mold trimming fully automatic wax injection wax models trees gold and silver jewelry centrifugal casting investment casting mold ordinary gypsum casting molds wax gypsum casting molds roasting platinum casting clasping process staggered arrangement craft creative setting thinking expansion hand-carved wax model fused deposition modeling light-cured original model a single sprue dual sprues 3d printing sprue setup jewelry molds silicone rubber metal alloy molds rubber molds high-temperature vulcanization room-temperature vulcanizatio thin-walled large smooth resin jewelry plastic jewelry acrylic jewelry acrylic ornaments plastic ornaments resin ornaments organic polymers resin crafts casting and forming jewelry craft surfacetreatment one-time molding secondary molding secondary processing wooden ornaments agarwood and accessories huanghuali wood and ornaments ancient sunken wood ceramic sintering ceramic shaping colored glass ornaments colored glass jewelry glass jewelry glass ornament product process glass crystal lead-free crystalline glass crystalline glass type potassium crystalline barium crystalline zirconium crystalline mixed crystalline water colored glass jewelry annealing wax mold immersion spray methods nano ~ spraying plating tech chemical plating process electrochemicalconversion film physical vapor deposition enamel craftsmanship jewelry design tools hand-drawing expression jewelry perspective composition expression color expression material expression jewelry template round brilliant-cut stone oval-cut gemstones marquise-cut gemstones jewelry grinding rosewood and its ornaments golden nanmu and its ornaments petrified wood and ornaments wooden craft products blackwood surface treatment jewelry electroplating leaf vein plating enamel art resin casting etching pvd coating laser etching ultrasonic etching electrolytic etching oxygen-free pure copper miao silver tibetan silver thai silver dzi bead ox bone tricolor copper antiquing process of thai low melting point alloys tin jewelry zinc alloys silicone mold casting cold extrusion jewelry alloy accessories craft jewelry low melting point metal elemen lead alloy stamping molds stamping machinery lightweight jewelry masterpiec wax mold making surfacetreatment electrolytic casting hollow electroforming lmmersion of protective agent copper alloy jewelry jewelry production brass jewelry bronze jewelry cupronickel jewelry pure copper high copper alloys craftsmanship of copper jewelr binder tungsten carbide tungsten carbide powder decoratetungstensteel material plain tungsten steel jewelry tungsten steel inlaid jewelry powder metallurgy ceramic jewelry ceramic materials ceramic production process ceramic ornaments alumina ceramic zirconia ceramic bendable superplastic ceramic aesthetically versatile green ornament chemical etching micro-alloyed pure copper lead-tin alloy jewelry forming process 303 austenitic stainless steel 304 austenitic stainless steel 316 and 316l stainless steel nickel-free stainless steel low-nickel stainless steel high-nitrogen nickel-free mechanical forming process investment casting process tungsten steel jewelry tungsten steel materials tungsten steel characteristics tungsten steel categories tungstensteel product process metal tungsten