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Does a black inclusion make it likely a ruby is natural?

kgizo

Brilliant_Rock
Premium
Joined
Dec 14, 2009
Messages
1,970
Recently purchased this brooch from a local place. It is mine cut diamonds in platinum topped gold. There is a black inclusion on the underside of the ruby. Wondering if this gives any indication if it is a natural ruby instead of synthetic.

C4196308-F786-445D-B0E7-9AA6033F23A7.jpeg
D09AF2B4-7D5E-453D-A493-32BF50376A9F.jpeg
6914736C-8142-4880-AD90-18A83C6754D6.jpeg
 

kgizo

Brilliant_Rock
Premium
Joined
Dec 14, 2009
Messages
1,970
Very pretty! Can we see the back, including the hinge, pin, and clasp? That might be a good clue to the age, which might give more info about whether it might be natural.
Thank you, here are pics of the back and clasp. Let me know if you need any more pics.

A873E05F-AB37-446A-B0E2-D780925A56E3.jpeg CE6D2054-4FFD-4B9C-93BB-34F189114125.jpeg


Very pretty brooch!
Not conclusive of course
But my GIA Tanzania no heat Ruby has a few spots kind of like that
40F26127-405F-4CF9-AF08-DCF38B56EB93.jpeg
( those prongs under magnification :( )

Thanks. That is a very cool pic of your ruby!
 

Daisys and Diamonds

Super_Ideal_Rock
Joined
Apr 30, 2019
Messages
10,759
Recently purchased this brooch from a local place. It is mine cut diamonds in platinum topped gold. There is a black inclusion on the underside of the ruby. Wondering if this gives any indication if it is a natural ruby instead of synthetic.

C4196308-F786-445D-B0E7-9AA6033F23A7.jpeg
D09AF2B4-7D5E-453D-A493-32BF50376A9F.jpeg
6914736C-8142-4880-AD90-18A83C6754D6.jpeg

i love it !
how do you plan to wear it ?
on a coat ?
or are you repurposing it into a pendent ?
 

glitterata

Ideal_Rock
Joined
Apr 17, 2002
Messages
3,724
Gorgeous! Going by the style of clasp, the design, and the mix of gold and platinum, I would guess it was made around 1900. That's around when synthetic rubies big enough for jewelry were first manufactured, but I don't think they were very common until a little later, so I continue to think yours is probably natural. That is a really elegant brooch in beautiful condition. Natural or synthetic, it's glorious.
 

Bron357

Ideal_Rock
Premium
Joined
Jan 22, 2014
Messages
5,170
I’m inclined to consider it a natural ruby.
It’s a beautiful colour too.
the whole brooch is exquisite, the workmanship is fabulous. Such a fine and elegant piece, I do so hope you get it out and about often,
 

MMtwo

Ideal_Rock
Joined
Sep 20, 2009
Messages
2,959
I believe natural rubies sometime have inclusions of blue sapphire. I am not someone who knows much about rubies though, so please take that with a huge grain of salt.

It's very beautiful. Enjoy your lovely pin!
 

kgizo

Brilliant_Rock
Premium
Joined
Dec 14, 2009
Messages
1,970
i love it !
how do you plan to wear it ?
on a coat ?
or are you repurposing it into a pendent ?
Thank you! I plan to wear it as a brooch. If I don’t think it’s getting enough wear I will convert to a pendant as that is a good idea.

No help here but this is beautiful! :kiss2:
Thanks!

Stunning! Love love love. That wasn’t helpful, but true...
Thank you!

Gorgeous! Going by the style of clasp, the design, and the mix of gold and platinum, I would guess it was made around 1900. That's around when synthetic rubies big enough for jewelry were first manufactured, but I don't think they were very common until a little later, so I continue to think yours is probably natural. That is a really elegant brooch in beautiful condition. Natural or synthetic, it's glorious.
That is really helpful info about the history. I’m always curious about vintage jewelry and when they don’t have any stamps or clues it’s a little disappointing so I appreciate your insight about the brooch.

I’m inclined to consider it a natural ruby.
It’s a beautiful colour too.
the whole brooch is exquisite, the workmanship is fabulous. Such a fine and elegant piece, I do so hope you get it out and about often,
Thank you. I admire your collection so your kind words mean a lot.

I believe natural rubies sometime have inclusions of blue sapphire. I am not someone who knows much about rubies though, so please take that with a huge grain of salt.

It's very beautiful. Enjoy your lovely pin!
That is interesting and new to me. It makes sense so I’m off to see if I can learn more. Than you!
 

Cerulean

Brilliant_Rock
Joined
Sep 13, 2019
Messages
1,854
Wow, what a special piece. I love moon motifs and that is just soooo delicate and lovely.

Absolutely no help to offer, but it is stunning!

I also prefer pinkish rubies and that little baby has life to her whether she's natural or not!
 
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