Home

About Us

Pre-Set Engagement Rings

Round Brilliant diamond rings
Radiant/Princess Cut diamond rings
Emerald Cut diamond rings
Oval Cut diamond rings
Marquise Cut diamond rings
Pear Shape diamond rings
Engagement Settings

Wedding Bands & Eternity Bands

Diamond Search
Estate Jewelry

Selected Gifts
Our Service

Customer Guestbook

Learn about Diamonds

Forum

  The Anatomy of a GIA Certificate
Diamond rings -

1. Report No. This is the report number which is entered into GIA computer and micro-filming system for permanent record.

2. Shape & Cut Each diamond is described as to its shape (round, pear, oval, etc.) and its cut (brilliant, step, mixed, etc.)

3. Measurements Each diamond is measured with a millimeter micrometer to the hundredth of a millimeter.

4. Weight Each diamond is weighted on an extremely accurate electronic digital balance with results reported to the nearest hundredth of a carat.

5. Proportions Proportions describe the ratio of the major physical features of a diamond.

6. Finish Finish describes the clarity of polish and symmetry of facet placement.

7. Clarity Clarity describes the summation of the number, size, placement and the nature of inclusions and or surface irregularities.

8. Color Color grade represents the range in which this diamond is positioned between GIA master color comparison stones.

9. Fluorescence Fluorescence (when present) describes the degree of sensitivity of a diamond to long-wave ultraviolet radiation such as is present in daylight.

10. Comments Comments are used to describe characteristics not covered by the above entries or on the plotting diagram. For example, "minor details of polish are not shown."

11. Plotting Diagram This is a diagram of similar shape and cut to the diamond noting nature and position of its identifying characteristics.

12. Key to Symbols Internal (inclusions) and external (blemishes) identifying characteristics are plotted in the relative relationship of size and position to the diagram as they are to the diamond. This serves as an illustration of the clarity grade but more importantly as a basis for the future identification of this diamond.

13. Signature Each report contains the GIA GTL company signature to reflect the work of the many staff members responsible for each report.

14. Grading Scale The relative position of the grade range of each diamond is shown with respect to GIA's complete grading system.

15. Not a guarantee valuation or appraisal. GIA doesn't buy. GIA doesn't sell. GIA doesn't appraise. GIA only grades diamonds with integrity and objectivity.



All items subject to prior sale

Empire Diamond Corporation | 350 Fifth Avenue | Suite 7619 | New York, NY 10118 | Tel: (800) 728-3425

About Diamond Rings + Round Cut Diamond Rings + Princess Cut Diamond Rings + Radiant Cut Diamond Rings
Emerald Cut Diamond Rings + Oval Diamond Rings Marquise Diamond Rings + Pear Diamond Rings
Jewelry Maintenance: Diamond Rings+ Wedding Bands Diamond Rings Diamond Engagement Rings
Choosing Diamond Rings+ Diamond Rings Facts and History + Diamond Rings Color

Resources on Diamond Rings 1 Diamond Rings 2 Diamond Rings 3 Diamond Rings 4 Diamond Rings 5