Corundum identification

Gem Related Discussion
23

Hello ,is this ruby good.Its got silk,transparent to translucent.8.5 carat mozambique.does the silk harm the value.

IMG_5333
IMG_53334032Ɨ3024 2.18 MB

IMG_4834
IMG_48344032Ɨ3024 1.81 MB

IMG_4833
IMG_48334032Ɨ3024 1.86 MB

IMG_4832
IMG_48324032Ɨ3024 2.03 MB

24

I donā€™t think the silk harms the value. If anything, it helps provide evidence of its natural origin. The cut and clarity will be more significant in assessing its value.

That is a really nice chunky ruby! :slight_smile:

Honestly, the report from Lotus is more interesting to me than the stone. Gold Reports from them varies from one stone to another. Some of the gold reports I have seen, has less information than this one does, and some have more contained on pages 2 and 3. I am not sure I understand how Lotus determines what information at a minimum is contained in each tier of their report format.

This isnā€™t a big issue because each stone may not have consistent data to present. It just seems slightly inconsistent, IMHO.

I guess I am just being pickyā€¦ :roll_eyes:

Cheers!

-Troy

25

Thank you for your reply. Most reports are confusing, they give you the origin and say that diff labs might have diff opinions. And one pays extra for the origin.And Iā€™m totally loving the silk it looks amazing in light , I think Iā€™d prefer it to a clearer stone.

26

if there is sufficient silk content in the stone, it might be a candidate to be recut into a star ruby. :smiley:

But I suspect the gem cutter already evaluated that possibility and decided it wouldnā€™t.

I agreeā€¦ its a pretty nice stone as is. I donā€™t think Iā€™d change it. :slight_smile:

-Troy

2 Likes
27

IMG_5466
IMG_54662778Ɨ1940 444 KB

IMG_5465
IMG_54652778Ɨ1940 437 KB

Hi again,What could those inclusions be.both certified ,one a color changing sapphire and another a ruby.just wondering about the inclusion.

28

IMG_5466: Curved striae are visible. The inclusion in the center could be from a flux filled cavity but it is difficult to see sufficient details to be certain.

IMG_5465: The inclusion might be a healed flux-filled fracture. But the acicular (needle-like) portion could be from a larger rutile crystal, that was damaged during a heat treatment process. I havenā€™t seen one like this before, so I am not sure.

Hopefully someone with more experience with inclusions in corundum can identify it.

-Troy

1 Like
29

thank you for your reply

30

Hi zoning in Sapphire, but also occurs in other Gemstones

1 Like