G.I.A - GEM SPECTROSCOPE

Title: GIA Gem Quality 42ct Aquamarine Finely Faceted Solitaire Platinum Fine Diamond Halo Enhancer Pendant Description: I doubt you will EVER see another large aquamarine with better color than this

Title: GIA Gem Quality Colombian Emerald Fine White Baguette Diamond Signed 18k Gold Ring Description: This signed 18k gold & diamond ring features an ultra-fine quality, approx. 1.25ct emerald cut

GIA Gem Fiberlite Testing Equipment includes: Duplex II Refractometer, Polariscope Model 415, Pleochroism (color variation) Model 409; Fiber Lite Model 413, Specific gravity, etc testing fluid kit, le

Model #760485, 10X with 30X objective, 155mm ocular, darkfield and overhead light, tilt swivel and two gem clips, appears to be working but in need of replacement bulb, on a round swivel stand, some s

Appears to be in working order, 10x with 30x objective, darkfield and overhead light, includes two gem clips as well, some signs of wear from use and age.

GIA GEM LAB INSTRUMENTS, SANTA MONICA, CALIF, 'STONE SIZING' ETC. W 8 1/2", D 6"

Model #750000, working condition, used to demonstrate how light refraction is affected by the proportion/cut of a diamond by sliding the panel left and right under the directed light, comes with plast

U.S, GIA GEM, SANTA MONICA,CA. DIAMOND PROPORTION COMPARATOR & RESEARCH INSTRUMENTS ' American Made Scientific Gemological Research, Diamond Proportion LAB-INSTRUMENT. PLUG IT IN AND IT LIGHTS-UP. Nor

900-purity platinum ring with a 0.74-carat oval-cut color change alexandrite center stone accented by 1.254 carats of round brilliant diamonds. It comes with a GIA gem report. Stamped Pt900, 0.74, D1.

This is a beautiful 900-purity 2.10-carat oval-cut sapphire ring accented by 0.79 carats of tapered baguette and round brilliant diamonds. It comes with a Gia gem report. Stamped D079, 210, Pt900, on

Tourmaline, diamond and 18k yellow gold ring Featuring (1) oval-cut blue tourmaline, weighing 17.42 cts, accompanied by a GIA Gem Trade Laboratory Tourmaline Report #2205299494, Dated May 16, 2019, st

DESCRIPTION: 36.13 carat cushion cut kunzite. In original box with GIA Gem Trade Laboratory report. CONDITION: No defects noted.

This gorgeous 900-purity ring has a 1.27-carat tanzanite center stone surrounded by three halos of round brilliant diamonds totaling 1.07 carats. It comes with a Gia gem report. Stamped Pt900, 1.27, 1

DESCRIPTION: 1.82 carat mixed cushion cut tsavorite. In original box with GIA Gem Trade Laboratory report. CONDITION: No defects noted.

Item: Natural purplish-black Star Spinel | cabochon oval cut Loose Gemstone: Natural Spinel, untreated Carat Weight: 2.64 Size: L7.77mm x W7.33mm x 5.16mm Translucent, comes with GIA Gem Brief Please

Item: Natural purplish-black Star Spinel | cabochon oval cut Loose Gemstone: Natural Spinel, untreated Carat Weight: 2.64 L7.77mm x W7.33mm x 5.16mm Translucent, comes with GIA Gem Brief Please note t

----DETAILS---- MAIN STONE// Yellow diamond TCW// 2.87ct CUT// pear brilliant CLARITY// S12 COLOUR// fancy, light greyish, greenish, yellow natural

Untreated, unheated ruby, transparent with great luster, these are the characteristics of this unique gem. GIA certified to ensure your investment. If you are looking for something unique, a gem that

Beautiful ruby, transparent with great luster, top origin (Burmese), these are the characteristics of this unique gem. GIA certified to ensure your investment. If you are looking for something unique,

2.31ct Cushion Cut Ultra Fine Violet Tanzanite Polished Gem Stone For Auction Is A 2.31ct Extra Fine Violet Tanzanite Cushion Cut / Faceted Stone. This Piece Has Excellent Polish &

1.31ct V-AAA Oval Cut Ultra Fine Violet Tanzanite Polished Gem Stone For Auction Is A .1.31ct Extra Fine Violet Tanzanite Oval Cut / Faceted Stone. This Piece Has Excellent Polish &amp

.75ct V-AAA Cushion Cut Ultra Fine Violet Tanzanite Polished Gem Stone For Auction Is A .75ct Extra Fine Violet Tanzanite Cushion Cut / Faceted Stone. This Piece Has Excellent Polish &

.75ct V-AAA Cushion Cut Ultra Fine Violet Tanzanite Polished Gem Stone For Auction Is A .75ct Extra Fine Violet Tanzanite Cushion Cut / Faceted Stone. This Piece Has Excellent Polish &

.89ct V-AAA Oval Cut Ultra Fine Violet Tanzanite Polished Gem Stone For Auction Is A .89ct Extra Fine Violet Tanzanite Oval Cut / Faceted Stone. This Piece Has Excellent Polish & G