F color diamonds of F clarity
F-I-1 Avoid excellent low color clarity
It is not logical to have excellent color when flaws are easily spotted. Consider sacrificing some color for clarity.
F-I-2 & below Not excellent color clarity
Not logical to have amazing colors and obvious flaws.
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Diamond Chart – Jewelry Designs
https://jewelrydesigns.com › Diamonds
This is a rating of the degree of clarity improvement: slight (F1), moderate (F2) and significant (F3). A “slight” improvement indicates that the treatment had only a minor effect on facial appearance top, while “significant” indicates an obvious effect on appearance.
IF diamonds. FL diamonds. Diamond Entrapment Guide. Error-free vs. Internally error-free. Which diamond clarity is best?
WF (Wilhelm fountain [ L ] ) 19th century/1st cent. half.
GF stands for Gold Filled. It may be marked as “10K GF” “1/20 10K GF”. Sometimes the piece is not marked GF after the stamp, just “1/10 14K”, this also means Gold Filled. Gold-filled items are similar to RGP items in that the gold is bonded to the surface of a base metal in a thin layer.
It has been banned for drivers to wear jewelry while racing in Formula One since 2005, but it wasn’t a rule that the FIA enforced until the 2022 Australian Grand Prix, when the governing body decided to take a stricter stance on this particular part of the rulebook.
Drivers were informed about this at the beginning of the year. In Miami, the FIA went a step further, reminding them that jewellery can increase the risk of burns in the event of a fire and can interfere with medical procedures and the treatment needed after an accident.
P stamped 10K or 14K in a ring means it is a HIGH QUALITY GOLD called “Plumb” You must be a registered certified goldsmith to use this type of GOLD. The gold is certified by PLUMB HIGH VALUE QUALITY.
925 is the standard sterling silver mark, and sterling silver is one of the most common places you’ll see it. The other way of reading 925 is 92.5. It shows that the piece of sterling silver is 92.5% pure silver and 7.5% alloys. This is an acceptable quality of sterling silver.
Place the stone flat side down on the point. Look at the paper through the pointed end of the diamond. If you see a circular reflection inside the gem, the stone is fake. If you cannot see the dot or a reflection in the stone, then the diamond is real.
Three standards of fineness are recognized for palladium stamps. They are 500 (50% pure), 950 (95% pure) plus 999 (99.9% pure) for “pure palladium”. Palladium with a fineness of 500 is harder than 950 and better suited for intricate objects.
You can tell if a diamond is genuine with a flashlight if the diamond is observed to successfully separate light into spectral colors, which the counterfeit comparative stone does not.
Also, the time and energy required to refine the precious metal from the other metals is greater than solid gold as these items contain very little gold. With that in mind, gold-filled jewelry is not usually worth very much unless you have very large quantities.
F1 cars are mainly transported in special purpose trucks as most F1 competitions take place in Europe and can be easily reached by driving from one country to another. However, air transport is sometimes used for rush deliveries, and sea transport is also occasionally used for F1 cars.
Formula 1 drivers are generally discouraged from wearing jewelry and certain types of jewelry are banned entirely by the FIA. This is for security reasons. Jewelry such as earrings and facial piercings make it difficult for emergency response teams to provide necessary care after an accident.
Sky Sports reports that Lewis Hamilton can simply keep wearing his jewelry and piercings in Formula 1. The FIA is said to have spoken to the drivers and come to their senses.