Symmetry / Fluorescence

[charlottedeac1]

In a recent discussion about diamonds with a friend, he stated that after a month a good cut diamond will look dirty/cloudy - whereas an ideal cut would still look great does not need frequent cleaning. What factors are the main contributors to a diamond looking cloudy? I want to ensure that the diamond I purchase always looks beautiful. The diamond I am interested in is an 1.71 ct F color, VS2, 58% table, 61.5% depth, medium to slightly thick girdle, no cutlet, good symmetry, excellent polish and medium blue fluorescence.

Should I be concerned that the good symmetry will detract from the overall beauty? Will medium blue fluorescence on an F color stone make the diamond look cloudy over time? The jeweler wants $16.5k and is not willing to budge on the price as he states the diamond is a "knee knocker."

Thanks for your advice!!

 

[oldminer]

Ideal cut round diamonds stay brilliant the best, even when somewhat dirty on their pavilion surfaces. Shallow diamonds loose performance more rapidly due to dirt on the bottom.
Deep diamonds are sort of in between shallow and ideal in regard to losing performance by becoming dirty.

Medium fluorescence might make your F color diamond a little cloudy to the unaided eye in bright sunlight. I suggest you check that out BEFORE buying it. Pick a very bright, sunny day and go outside with the diamond in a temporary mounting, not in a diamond paper. See if the diamond continues to be sparkly or if it has a minor cloudiness from fluorescence.

Fluorescence and dirt do not mix. They have no effect on eachother.

Buy an inexpensive ultrasonic for keeping the diamond clean and don't worry over it...to much.

Do a pricescope search to be sure on the value of what you are buying...That's a lot of money, so check it out.

 

[JC]

Well said David.....

 

[charlottedeac1]

Thanks miner. I have purchased the diamond, but do not have it in my possession as the setting is being ordered - the jeweler still has the diamond. Would you recommend that I ask him to try and find an F stone with at least very good symmetry and little-faint fluorescence? Or should I purchase the diamond online with ideal specs and use the setting I bought in the store?

 

[oldminer]

I don't recommend changing a diamond without examining it to see how the flourescent effect presents itself. It could be nothing to concern you. Then again, it may mean a different diamond is called for.

I doubt most people can see the benefit of fine symmetry. There is a case to be made for a bit of lack of symmetry, too.

No, if you picked the stone and if you follow my suggestion to look at it in sunshine, and you still like it, then don't change. You'll be right back where you are now, still questioning.

 

[solange]

I doubt most people can see the benefit of fine symmetry. There is a case to be made for a bit of lack of symmetry, too.

Can you eleborate on the case to be made for a bit of lack of symmetry? I was told when I posted the Idealscope of a stone I recently purchased that the top facets were not perfectly aligned with the bottom facets and that this might actually improve the appearance of the stone. The GIA report listed the symmetry as very good.

If this is a fact in certain instances, does it make sense to pay more for a GIA graded stone with excellent symmetry when one might get a stone that is even more attractive with good symmetry and not pay the extra cost since the GIA does not give adequate information about other factors which affect the appearance of the stone. Polish and symmetry seem to be stressed by some vendors and factored into the price of GIA graded stones.

How would lack of fine symmetry affect the appearance of a stone?