Find your diamond
Find your jewelry
shape
carat
color
clarity

Blue Spinel real or synthetic?

mborda

Rough_Rock
Joined
Feb 24, 2016
Messages
21
RI of 1.72
Has inclusions that resemble crumbs or dirt under magnification. Totally eye clean.
No reaction under UV
I don't have the extra money to send it to GIA.
Any ideas? Looks to be very old, and made of 2 pieces.

20160224_153217.jpg
 

Niel

Super_Ideal_Rock
Premium
Joined
Jul 23, 2012
Messages
18,853
Well based in the color and size, yes, I do think it's synthetic


But only so much one can gauge from a photo
 

bcavitt

Shiny_Rock
Trade
Joined
Mar 6, 2012
Messages
199
Lots of synthetic spinel found in older rings. Again, can't really tell from a picture. A G.G. worth his/her salt could tell you for sure but he/she may charge you.
 

mborda

Rough_Rock
Joined
Feb 24, 2016
Messages
21
See, that's the problem! Finding someone who can give me an answer is hard! Most jeweler's I've talked to don't know much about cooled gems!
 

mborda

Rough_Rock
Joined
Feb 24, 2016
Messages
21
Some idiot at a jewelry store. He was the gemologist on duty. Got out his pretty little machine.
He thought it could have been a tanzinite until he took the reading. He said 1.72. I'm getting a second opinion.
 

mborda

Rough_Rock
Joined
Feb 24, 2016
Messages
21
Some idiot at a jewelry store. He was the gemologist on duty. Got out his pretty little machine.
He thought it could have been a tanzinite until he took the reading. He said 1.72. I'm getting a second opinion.

20140606_195327.jpg
 

chrono

Super_Ideal_Rock
Premium
Joined
Apr 22, 2004
Messages
37,377
Highly suspect that it is synthetic based on the age, size, colour, and clarity.
 

mborda

Rough_Rock
Joined
Feb 24, 2016
Messages
21
I found this authentic, natural blue spinel online. The ring is around 8,000 dollars. I put my ring next to it to show the color comparison.
I went to a jeweler today but there was no one working who could give me a RI.

cymera_20160227_111337.jpg
 

stracci2000

Ideal_Rock
Premium
Joined
Jun 26, 2007
Messages
3,861
If this was natural spinel, I would expect the setting to be more lavish, with diamonds and such, befitting a great big spinel with that electric blue color. More like the ring in your comparison photo.

And why was the jeweler an "idiot'? Did he tell you it was synthetic, and you didn't like that answer?
 

mborda

Rough_Rock
Joined
Feb 24, 2016
Messages
21
He was an idiot because he thought it was a tanzinite. Then he walked away from me, leaving me standing in the middle of the store. So....are we done? His answer for most questions was "I dunno". You could tell that because it wasn't a diamond, he could have cared less.
 

Niel

Super_Ideal_Rock
Premium
Joined
Jul 23, 2012
Messages
18,853
mborda|1456921108|3998368 said:
He was an idiot because he thought it was a tanzinite. Then he walked away from me, leaving me standing in the middle of the store. So....are we done? His answer for most questions was "I dunno". You could tell that because it wasn't a diamond, he could have cared less.
Sorry, that's not how they should act.
 

chrono

Super_Ideal_Rock
Premium
Joined
Apr 22, 2004
Messages
37,377
I'm sure if you paid for the services of a reputable gemmologist, he or she will be more professional and give you correct answer, which probably will not be what you want to hear though.
 

tourma-guy

Shiny_Rock
Joined
Mar 30, 2015
Messages
134
Chrono|1456924794|3998400 said:
I'm sure if you paid for the services of a reputable gemmologist, he or she will be more professional and give you correct answer, which probably will not be what you want to hear though.
Yep. You can't expect someone who likely only deals with diamonds on a regular basis to know everything about colored stones. At first glance it very well may look like Tanzanite. Spinel isn't as well known of a stone. Plus (just to play devil's advocate) he wasn't going to make money off of reading the RI for you, which is probably why he didn't want to spend a bunch of time helping you. Not that that excuses the guy being rude.

Also depending on the quality of the refractometer, and skill of the person using it, 1.714 looks a lot like 1.72.
 

digdeep

Brilliant_Rock
Premium
Joined
Apr 14, 2013
Messages
877
Your best bet is to pay for the services of a lab and get the information that will validate the gem..........one way or the other. The odd's are that it is synthetic, but if you are invested in the answer..........that's your clear path as jewelry stores are not set up to identify gems.......especially colored stones.
 

mborda

Rough_Rock
Joined
Feb 24, 2016
Messages
21
Well, I've set up an appoint with an actual gemologist in april.
Now I wait...
 

mborda

Rough_Rock
Joined
Feb 24, 2016
Messages
21
Ok. Went to GIA certified gemoligist. The RI of the stone is 1.719.
He recommended to have it chemically analyzed to make sure, but it's pointing to a real stone!
 

chrono

Super_Ideal_Rock
Premium
Joined
Apr 22, 2004
Messages
37,377
Synthetic and natural spinel have the same R.I. which is why further testing is needed.
 

mborda

Rough_Rock
Joined
Feb 24, 2016
Messages
21
From what I've read, synthetic blue spinel is 1.728 plus OR -1.71. I've seen something about Russian synthetics having a RI of 1.719.
 

Niel

Super_Ideal_Rock
Premium
Joined
Jul 23, 2012
Messages
18,853
Just don't get your hopes up. I've never seen a spinel look exactly that color, and I've seen lots of synthetics look exactly that color.
 
Be a part of the community It's free, join today!
    Lucky Alhambra Bracelet
    Lucky Alhambra Bracelet
    Handmade diamond studs
    Handmade diamond studs
    5 Diamond Misconceptions: Part 1
    5 Diamond Misconceptions: Part 1

Need Something Special?

Get a quote from multiple trusted and vetted jewelers.

Holloway Cut Advisor



Diamond Eye Candy

Click to view full-size image.
Top