Cos'è un diamante CVD? CVD (Deposizione di vapore chimico) diamante. La miscela di gas contenente carbonio e ossigeno viene eccitata e decomposta ad alta temperatura e pressione inferiore alla pressione atmosferica standard per formare atomi di carbonio di diamante attivo, che vengono depositati sul substrato e alternativamente cresciuti in un diamante policristallino (or controlled deposition growth conditions to …
round brilliant diamonds shapeThe round shape is the most famous diamond cut as it accounts for nearly half of all polished diamonds. This is one of the great cuts named for its strong light properties. The ultimate formula for Round Brilliant was developed by Marcel Tolkowsky in 1919: all 58 facets are symmetrically cut, allowing …
Replicating what’s happening deep underground is difficult, time-consuming and expensive, but the end result is the same as what’s been mined for centuries. There are easier ways to do this, but only the process we use, replicating nature to rearrange atoms to grow beautiful diamonds as unique as fingerprints. We do this because we care …
What is diamond cut? Excellent cut diamonds have a uniform and clear pattern of light and dark areas and provide the highest level of fire and brilliance, as nearly all incoming light is reflected through the table. Very good cut diamonds are very similar to very good cut diamonds. They provide extraordinary brilliance and fire …
Specification of Lab Grown Diamond Code # Grade Carat Weight Clarity Size 04A A 0.2-0.4ct VVS VS 3.0-4.0mm 06A A 0.4-0.6ct VVS VS 4.0-4.5mm 08A A 0.6-0.8ct VVS-SI1 4.0-5.0mm 08B B 0.6-0.8ct SI1-SI2 4.0-5.0mm 08C C 0.6-0.8ct SI2-I1 4.0-5.0mm 08D D 0.6-0.8ct I1-I3 4.0-5.0mm 10A A 0.8-1.0ct VVS-SI1 4.5-5.5mm 10B B 0.8-1.0ct SI1-SI2 4.5-5.5mm 10C …
Conosciuto anche come diamante di tipo 2a, a Tipo IIa è una delle quattro classificazioni dei diamanti. In giro 1-2% di tutti i diamanti sono classificati come Tipo IIa (o 2a). Queste gemme sono puramente, o quasi puramente carbonio, e sono considerati i più puri e preziosi di tutti. Type IIa diamonds have zero or …
