Precision Gem Store

On this page are all the cut stones I currently have in inventory. To see more information about a stone, click on the picture, this will take you to a detailed description of the stone, and any additional photos. To see a larger image, click on it.
Stones can be added to the shopping cart, where you can check out using either Paypal a Personal Check, Apple Pay Cash or Wise Transfer. If using Apple Pay Cash, make sure the email you enter is associated with your iMessage account, or enter your iPhone number in the phone number field.

All photos are taken using SOLUX bulbs that are color balance to a warm dalight at 4700 deg K.

New gems coming early in May.

Gem 2910 Color Change YAG

  • Gem 2910 Color Change YAG
  • Gem 2910 Color Change YAG
  • Gem 2910 Color Change YAG

2.995 ct. Color change YAG

YAG stands for Yttrium Aluminum Garnet. It has the cubic crystal structure of natural garnet. Often called synthetic garnet. These stones are very hard with a hardness of 8.5 and a high refractive index. What's neat about this one is the color change. Going from a strong royal blue in daylight and florescent light to a purple in incandescent light. Measures 8.101 mm, this one is cut in one of my custom round designs.. Has the look of a tanzanite, or color change sapphire [Video included]

Color: 10/10 Clarity: 10/10 Brilliance: 5/5 TQR: 10.0

Color Change YAG


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