Aug 3, 2006 · Sapphire is denser than topaz so a 1ct sapphire will be smaller than a 1ct topaz (all other things like cut being equal). Sapphire has a higher refractive index and can have a higher lustre than topaz as a result. Sapphire is harder. Topaz is relatively clean and available in large sizes. Both can have distinctive types of inclusion.

Jan 6, 2006 · Most pink topaz is either surface treated or diffused some how. I don't think they are very durable. Sapphire is more durable with a higher refactive index. Spinel is another choice which IMO is the best choice because it seems to keep a better color in various lighting conditions and is all natural. Spinel is less expensive than sapphire also.

Mar 15, 2020 · I sketched the attached pic on Word and sent it to a designer whose work I really admire. Ring budget $5k. The designer suggested using the blue topaz as the main stone and sapphire in the halo, noting topaz typically doesn’t come small enough for halo and sapphires would be a lovely, sparkly halo choice.

Dec 1, 2019 · The big problem with using any gem tester (I have the expensive Presidium) is its use is very limited. It can’t distinguish between lab grown material and natural from the earth. The gem testers are best for IDing say CZ vs other gemstones. On a presidium both sapphire and topaz have the same thermal signature.

Feb 23, 2012 · I have a white sapphire ring and perfectly clean it looks amazing. 3 minutes later it’s looking rather blah. Neither sapphire or topaz have a particularly high dispersion. I would go for white zircon instead.

Aug 3, 2010 · So I've told my husband that I would like some diamond stud earrings but without the price tag of the diamond part. Because of this I'm looking at white topaz or white sapphire. They'd be set in a yellow gold bezel setting. Which stone would you pick and why? I'm open to suggestions if you have...

Dec 5, 2018 · You can look up any gem for the Mohs hardness scale. The higher the number, the harder/more durable the stone. Diamond is a 10. I believe topaz is 8, zircon 7. That's not "only one level" It's a big difference. For a man's daily wear ring, I'd get topaz. And I agree with you on the swiss topaz. There's even a more striking "electric" blue topaz.

Mar 22, 2007 · Hi everyone! My favourite color is baby blue and I''m thinking about getting a RHR. I want a really sparkly ring. My question is which gives the most sparkle: zircon, topaz or aquamarine? Also, what cut should I look for if I am looking for maximum sparkling? I''m thinking about a 3ct with halo. Any suggestions or help would be greatly ...

Feb 17, 2007 · A simple refractometer reading can separate sapphire from citrine or topaz. If you buy it, insist on an invoice with a written description of the stone as sapphire if the store can''t positively identify it. By law the invoice should also describe any …

Oct 5, 2020 · Sapphire also has a higher refractive index so it sparkles” (returns light) better. There is quite a huge difference is price and size availability. Large Amethyst crystals are very common and available in just about any carat weight you want for $10 or less a carat. Sapphire crystals are rarer, much smaller and very much more expensive.