D069-Type IaAIb yellow re-entrant cube diamond under intense broadbad SWUV excitation.
D069-Type IaAIb yellow re-entrant cub...
D067-Polycrystalline and lonsdaleite-rich diamond interference figures - Immersion, crossed polarizers.
D067-Polycrystalline and lonsdaleite-...
D068-Natural irradiation stains in fissures in a colorless type IaAB old cut diamond. The heat during the cutting process turned the color of the stains from green to brown - Darkfield illumination.
D068-Natural irradiation stains in fi...
D066-Irradiated and annealed type Ib diamond under intense broadband UV excitation, with orange NV Luminescence and green H3 Luminescence in distinct sectors.
D066-Irradiated and annealed type Ib ...
D065-Ni-centers-related yellowish green luminescence in cuboid H-rich sectors in a type IaAB asteriated colorless diamond - under 450nm excitation, U-Visio imaging.
D065-Ni-centers-related yellowish gre...
D064-Core of a H-rich type IaAB asteriated rough diamond exhibiting alternation of cuboid and octaedric growth sectors - darkfield illumination, immersion.
D064-Core of a H-rich type IaAB aster...
D063-Possibly Olivine inclusions in a type 1aAB colorless diamond, partially crossed polarizers
D063-Possibly Olivine inclusions in a...
D062-Possibly Olivine inclusions in a type 1aAB colorless diamond, darkfield illumination
D062-Possibly Olivine inclusions in a...
D061-Purple garnet crystal in a type IaAB colorless diamond, darkfield illumination
D061-Purple garnet crystal in a type ...
D060-Olivine crystals in a type IaAB colorless diamond - Partially crossed polarizers
D060-Olivine crystals in a type IaAB ...
D043-Metallic inclusions in an HPHT grown synthetic blue diamond
D043-Metallic inclusions in an HPHT g...
D042-Metallic inclusions in an HPHT grown synthetic blue diamond
D042-Metallic inclusions in an HPHT g...
D041-CVD grown near colorless synthetic diamond from Gemesis under crossed polarizing filters
D041-CVD grown near colorless synthet...
D040-Fancy dark greenish yellow type IaAB rough diamond, Sierra Leone - Partially crossed polarizers, immersion.
D040-Fancy dark greenish yellow type ...
D039-Colorless type IaAB rough diamond, Sierra Leone - Crossed polarizers, immersion.
D039-Colorless type IaAB rough diamon...
D038-Colorless type IaAB rough diamond, Sierra Leone - Crossed polarizers, immersion.
D038-Colorless type IaAB rough diamon...
D37-Olivine crystal in a Type IaAB Fancy intense purplish pink diamond - Partially crossed polarizers, immersion.
D37-Olivine crystal in a Type IaAB Fa...
D036-Olivine crystal in a Type IaAB Fancy intense purplish pink diamond - Partially crossed polarizers, immersion.
D036-Olivine crystal in a Type IaAB F...
D035-Diospide crystal in a type IaAB colorless diamond.
D035-Diospide crystal in a type IaAB ...
D034-Diospide crystal in a type IaAB colorless (H) diamond.
D034-Diospide crystal in a type IaAB ...
D033-The first HIH synthetic diamond discovered at GGTL Laboratories. Luminescent \"graining\" along octahedral planes under strong LWUV irradiation.
D033-The first HIH synthetic diamond ...
D032-Brown graining in type Ia diamond, immersion diascopy.
D032-Brown graining in type Ia diamon...
D031-Dissolution related open cavity in type Ia colorless diamond, irradiation stains from fluids and color modification induced by heat of cutting process.
D031-Dissolution related open cavity ...
D030-Type Ia pink diamond, large graining,crossed polarizers.
D030-Type Ia pink diamond, large grai...
D029-Y center diamond luminescence under strong SWUV irradiation.
D029-Y center diamond luminescence un...
D028-HPHT synthetic brown-yellow diamond, luminescence under strong SWUV irradiation.
D028-HPHT synthetic brown-yellow diam...
D027-HPHT synthetic type IIb blue diamond, luminescence under strong LWUV irradiation. Claimed to be produced from human ashes.
D027-HPHT synthetic type IIb blue dia...
D026-HPHT synthetic yellow diamond, luminescence under strong SWUV irradiation.
D026-HPHT synthetic yellow diamond, l...
D025-HPHT synthetic type IIb blue diamond, luminescence under strong LWUV irradiation. Claimed to be produced from human ashes.
D025-HPHT synthetic type IIb blue dia...
D024-Synthetic CVD (H color) diamond, HPHT treated,  luminescence under SWUV irradiation.
D024-Synthetic CVD (H color) diamond,...
D023-Synthetic CVD (H color) diamond, HPHT treated, crossed polarizers, immersion.
D023-Synthetic CVD (H color) diamond,...
D022-HIH-diamond (HPHT grown-Irradiated-HPHT treated) luminescence under strong SWUV irradiation.
D022-HIH-diamond (HPHT grown-Irradiat...
D021-Surface of rough colorless twinned diamond, dissolution pattern, lateral darkfield illumination.
D021-Surface of rough colorless twinn...
D020-Colorless natural diamond with fibrous core, crossed polarizers, immersion.
D020-Colorless natural diamond with f...
D019-Colorless natural diamond, crossed polarizers, immersion.
D019-Colorless natural diamond, cross...
D018-Colorless natural diamond, crossed polarizers, immersion.
D018-Colorless natural diamond, cross...
D017-Type Ia pink/brown natural diamond, cuboid phantom cloud under visible light (darkfield).
D017-Type Ia pink/brown natural diamo...
D016-Type Ia diamond HPHT treated, green emitter under strong LWUV irradiation.
D016-Type Ia diamond HPHT treated, gr...
D015-Type Ia natural green emitter yellow diamond, darkfield illumination.
D015-Type Ia natural green emitter ye...
D014-Type Ia diamond, cuboid phantom cloud under visible light (darkfield).
D014-Type Ia diamond, cuboid phantom ...
D013-Garnet inclusion in type Ia colorless diamond, darkfield illumination.
D013-Garnet inclusion in type Ia colo...
D012-Garnet inclusion in type Ia colorless diamond, darkfield illumination.
D012-Garnet inclusion in type Ia colo...
D011-Irradiated blue diamond, brown cuboid zoning, immersion, visible light.
D011-Irradiated blue diamond, brown c...
D010-Type Ia diamond, octahedral phantom cloud under visible light (darkfield).
D010-Type Ia diamond, octahedral phan...
D009-Type Ia diamond cuboid phantom cloud under 330 nm excitation (same stone as D008).
D009-Type Ia diamond cuboid phantom c...
D008-Type Ia diamond cuboid phantom cloud under visible light (darkfield).
D008-Type Ia diamond cuboid phantom c...
D007-Type IaA/Ib natural yellow diamond under strong SWUV irradiation.
D007-Type IaA/Ib natural yellow diamo...
D006-Pink type Ia diamond multitreated (HPHT-Irradiation-Annealing) under strong LWUV irradiation.
D006-Pink type Ia diamond multitreate...
D005-Y center diamond luminescence under strong SWUV irradiation.
D005-Y center diamond luminescence un...
D004-Y center diamond luminescence under strong SWUV irradiation.
D004-Y center diamond luminescence un...