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They come in “onyx black,” “titanium white,” “sapphire blue,” and “crystal pink.”

Since Kayla loves dogs, he gave her a plastic pug ring as a placeholder, which was later replaced with a green jade and white sapphire ring.

The French fashion house will introduce four new colors: white, sapphire blue, peacock blue, and fire orange, the traditional Hermès color.

Brit Polly Wales' medieval-style one-of-a-kind diamond Beetle ring has rose cut black and white diamonds and a red sapphire Rapunzel band with a sweet white sapphire cluster setting; $5,850.

Ilona Kaprovsky, a 24-year-old New Yorker who works in finance, said she didn’t initially think she wanted a diamond as the centerpiece of her engagement ring — a lab-grown stone like a white sapphire, or even cubic zirconia, would be just fine.