Figure 3. DiamondView imaging showed strong orange fluorescence with small irregular areas of blue fluorescence, a typical feature of as-grown CVD synthetic diamond. Photo by Carmen Lo.
Figure 2. The photoluminescence spectrum collected at liquid nitrogen temperature with 514 nm laser excitation shows moderate emissions from [N-V] centers and a very strong emission from [Si-V]–.
Figure 1. One of the round-cut melee mounted in this ring was identified as a CVD synthetic diamond. Photo by Johnny Leung.
![Photoluminescence spectrum of melee diamond. Figure 2. The photoluminescence spectrum collected at liquid nitrogen temperature with 514 nm laser excitation shows moderate emissions from [N-V] centers and a very strong emission from [Si-V]–.](https://dev.author.gia.magnolia-platform.io/dam/migrated-assets/images/198674-468x325 "Photoluminescence spectrum of melee diamond. Figure 2. The photoluminescence spectrum collected at liquid nitrogen temperature with 514 nm laser excitation shows moderate emissions from [N-V] centers and a very strong emission from [Si-V]–.")
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