Business-lanka: February 2020

Friday, February 28, 2020

https://www.creditdonkey.com/yellow-diamond.html

Thursday, February 27, 2020

Wednesday, February 26, 2020

Tuesday, February 25, 2020

Monday, February 24, 2020

https://www.youtube.com/watch?v=CzAwbyk4c9M

http://www.diamondsbylauren.com/index.php/jewelry/113ct-orange-vvs1-cushion-diamond-r9030

https://www.youtube.com/watch?v=p-jbczDZSdY

Sunday, February 23, 2020

https://www.jewelry-secrets.com/Blog/can-diamond-testers-be-fooled/

https://www.youtube.com/watch?v=mk71T7k1n2k

https://www.youtube.com/watch?v=ExHY7UD6f3s

https://www.gemrockauctions.com/auctions/taaffeite-natural-from-sri-lanka-very-rare-certified-123ct-collectors-972017

Saturday, February 22, 2020

Calculating Diamond Price Per Carat

Diamond Carat Weight	Price (Per Carat, Round Brilliant Cut)
1.0 carat	$2,500 – $18,000
1.50 carat	$3,400 – $24,000
2.0 carat	$4,200 – $29,000
3.0 carat	$7,200 – $51,000

https://www.youtube.com/watch?v=5uj37fX3e6E

https://www.gempundit.com/gemstones/padparadscha/padparadscha-gp55392

https://youtu.be/kNRQoKbExTA?t=45

Padparadscha sapphires are one of the rarest of sapphires. These extremely rare stones are unknown to most, but when discovered usually become an absolute favorite. They are strikingly beautiful and almost no other colored stone compares to this unique mix of pink and orange.

https://www.youtube.com/watch?v=xi4xgrAGm-0

http://www.regalgems.net/contact.php

https://www.gia.edu/gems-gemology/summer-2018-natural-color-blue-gray-violet-diamonds-allure-of-the-deep

https://www.samuelsonsbuyers.com/

https://www.gemrockauctions.com/auctions/taaffeite-natural-from-sri-lanka-very-rare-certified-123ct-collectors-972017

Friday, February 21, 2020

https://www.thegemtrader.com/gems-taaffeite-zircon/147-ct-pink-taaffeite

https://awesomegems.com/sapphire-white-priceguide.html

https://www.youtube.com/watch?v=XEbYZczbuL0

http://www.gemologyproject.com/wiki/index.php?title=Taaffeite

Taaffeite
Dispersion	0.019
Specific gravity	3.60 - 3.62
Pleochroism	Faint
Fluorescence	LW: inert to lightgreen SW: inert

Taaffeite is a mineral, named after its discoverer Richard Taaffe who found the first sample, a cut and polished gem, in October 1945 in a jeweler's shop in Dublin, Ireland. As such, it is the only gemstone to have been initially identified from a faceted stone. Wikipedia

Crystal system: Hexagonal

Crystal habit: Prismatic, alluvial grains

Mohs scale hardness: 8–8.5

Optical properties: Uniaxial

Refractive index: n_ω = 1.722, n_ε = 1.777

Taaffeite – $2,500 per carat. Taaffeite is not very familiar to many due to how rare it is. In fact, it is so scarce that it's considered to be a million times rarer than a diamond. It was discovered by gemologist Richard Taaffe in 1945 in a jeweler's shop in Dublin, Ireland.

Taaffeite can easily be mistaken for spinel judging from its refractive index and specific gravity range, but taaffeite is most definitely birefringent while spinel is not, although spinel can exhibit anomalous double refraction(ADR) due to internal stain.Jul 13, 2009

https://apkpure.ai/gemstone-taaffeite

https://www.litnon.com/index.php?page=payment

Thursday, February 20, 2020

Tuesday, February 18, 2020

http://www.mindlanka.org/

Monday, February 17, 2020

https://www.ajsgem.com/gemstone-information/tsavorite-garnet-55.html

Sunday, February 16, 2020

https://www.youtube.com/watch?v=MYePXkxSaQE

Saturday, February 15, 2020

https://www.youtube.com/watch?v=u0nE7m2DCRo

https://www.youtube.com/watch?v=NxYggrsan14

https://www.youtube.com/watch?v=s_uYvnMPZbo

https://www.youtube.com/watch?v=At2bY2e732Y&t=45s

https://www.youtube.com/watch?v=W5-j1XPH-4Y

Friday, February 14, 2020

https://www.youtube.com/watch?v=rI7GRfhcQbk

Wednesday, February 12, 2020

https://www.youtube.com/watch?v=R9g0L8uFHMU

Tuesday, February 11, 2020

Monday, February 10, 2020

Saturday, February 8, 2020

braveness - a quality of spirit that enables you to face danger or pain without showing fear. bravery, courage, courageousness. spirit - a fundamental emotional and activating principle determining one's character.