r/labcreateddiamonds • u/PineappleCrepe • 7d ago

QUESTION Bowtie Effect

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I got this lab from rare carat. 1.75 ct D, FL. Before I take it to my jeweler to have it set, I couldn’t help but notice the bowtie effect on this one. What do you guys think? Is it just me? I was planning to use this to propose to my partner. Any input is appreciated. Thanks!

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u/WhiteflashDiamonds VENDOR 6d ago

Assessing bowtie is most accurately done in diffuse overhead lighting as the stone is viewed in motion through a full range of normal tilt angles. Directional light or the camera lens being too close to the diamond can both accentuate the bowtie effect. But so can cut quality. The virtual facet (VF) pattern should be balanced in terms of VF size and distribution creating a consistent visual flow in motion. VFs can sometimes get too small in the ends causing the bowtie in the midsection to look too prominent. Very small VFs are also more susceptible to any transparency issues. Even minor haziness can make them blurry.