Diamond Masters, LLC - USA Coins

05/20/2026

05/14/2026

Looking to pick an exceptional Round Brilliant Cut diamond? Save these tips on diamond anatomy!

- Table: This is the largest facet at the “top” of a diamond, typically mounted to face the viewer. It allows light to shine into the diamond and reflect back out. A large table facet can make a diamond appear larger, but too large of a table facet can reduce the crown facets’ ability to disperse light. The ideal table size is between 52-62% of a diamond’s diameter.
- Crown: The crown facets at the top of the diamond consist of 8 bezels, 8 stars and 16 upper halves. They gather and disperse light to create brightness, fire and a scintillating pattern of light and dark. The crown angle – the angle between the bezel facet plane and the table plane – should be between 31.5 to 36.5 degrees.
- Girdle: The girdle surrounds the middle portion of a diamond like a “belt,” Separating the crown from the pavilion. It should not be too thick, which can hide weight, or too thin, which may make the diamond vulnerable to chipping.
- Pavilion: The pavilion or bottom facets consist of 16 lower halves and 8 mains. They reflect light back through the crown into the viewer’s eye. The pavilion angle, the average angle made by the diamond’s pavilion facets and girdle plane, is a key dimension influencing the stone’s brightness, and ideally falls between 40.6 – 41.8 degrees.
- Culet: The culet is an optional facet at the very bottom of the diamond. It can reduce the chance of the bottom tip chipping. However, an overly large culet can look like a distracting dark circle through the table facet.
Importantly, GIA considers how a diamond’s proportions relate to each other, rather than considering individual proportions in isolation.

Learn more about picking the best round brilliant diamond at the link in our bio.

05/14/2026

A GIA cut grade for round brilliant-cut diamonds is one of the most important indicators of a diamond’s beauty and craftsmanship. Among the 4Cs—cut, color, clarity and carat weight—cut can be the most complex and generally the most important in bringing a diamond’s beauty to life. The way a diamond is cut determines how brilliantly it sparkles and how much fire it shows.

Understanding GIA’s cut grade system will help you choose a stone that truly shines: https://bit.ly/3OuBObe

03/17/2026

Due to the weather and Icy roads conditions, we won’t be able to open the store today March 18th, 2026.
Sorry for any inconvenience it may cause, please stay safe 🙏🙏🙏🙏

11/24/2025

https://ebay.us/m/m1um9k

Grade Service:NGC. It would also make a nice first year edition for the beginning collector! Coin Highlights Coins from the San Francisco Mint carry an 'S' mint mark on the Reverse below the wreath.

06/30/2025

Looking to pick an exceptional Round Brilliant Cut diamond? Save these tips on diamond anatomy!

- 𝐓𝐚𝐛𝐥𝐞: This is the largest facet at the top of a diamond. It allows light to shine into the diamond and reflect back out. A large table facet can make a diamond appear larger, but too large of a table facet can reduce the crown facets’ ability to disperse light. The ideal table size is between 52-62% of a diamond’s diameter.
- 𝐂𝐫𝐨𝐰𝐧: The crown facets at the top of the diamond consist of 8 bezels, 8 stars, and 16 upper halves. They gather and disperse light to create brightness, fire, and a scintillating pattern of light and dark. The crown angle – the angle between the bezel facet plane an the table plane – should be between 31.5 to 36.5 degrees.
- 𝐆𝐢𝐫𝐝𝐥𝐞: The girdle surrounds the middle portion of a diamond like a “belt,” Separating the crown from the pavilion. It should not be too thick, which can hide weight, or too thin, which may make the diamond vulnerable to chipping.
- 𝐏𝐚𝐯𝐢𝐥𝐢𝐨𝐧: The pavilion or bottom facets consist of 16 lower halves and 8 mains. They reflect light back through the crown into the viewer’s eye. The pavilion, angle, the average angle made by the diamond’s pavilion facets and girdle plane, is a key dimension relating to the stone’s brightness, and ideally falls between 40.6 – 41.8 degrees.
- 𝐂𝐮𝐥𝐞𝐭: The culet is an optional facet at the very bottom of the diamond. It can reduce the chance of the bottom tip chipping. An overly large culet can look like a distracting dark circle through the table facet.

Importantly, GIA considers how a diamond’s proportions relate to each other, rather than considering individual proportions in isolation.

Learn more saveable tips about the 4Cs of diamond quality on our blog: https://4cs.gia.edu/en-us/blog/how-to-select-round-diamond-engagement-ring/?utm_campaign=consumer-education&utm_content=1751299321&utm_medium=organic-social&utm_source=facebook

06/09/2025

Year: 1884. Features the Carson City Mint's "CC" mint mark. Contains. 7734 oz of Silver. Simply call us at with the item, year and condition you are looking for and we will get back to you as soon as possible.

06/07/2025

Grade Service: PCGS. Year: 1904. Obverse: Features Lady Liberty facing left, wearing a pearl crown inscribed with "Liberty.". Coin Highlights Coins from the Philadelphia Mint do not feature a mint mark.

06/07/2025

2021 Australian Wildlife 1/4 oz. 9999 Gold Coin. Year: 2021. This special 2021-P 1/4 oz Gold coin celebrates the diverse wildlife population from the Outback! This coin in stunning BU condition showcases the koala, kookaburra and kangaroo!