Diamond Certification

Diamond Certificate

All of our diamonds come along with a Diamond Certificate from an independent laboratory.  This showcases the characteristics of the diamond like its Cut, Colour, Clarity and Carat weight which gives you extra piece of mind to know what you are purchasing.  It acts like a passport which tells you all about your diamond’s credentials and ensures your stone has come from a repeatable source. 

A Diamond Certificate certainly can’t explain why you may love one diamond more than another however it gives peace of mind that you have all the information available about your stone.

The Gemmological Institute of America (GIA) is the world’s largest and most respected non-profit institute of gemmological research and learning. The GIA Gem Trade Laboratory was established in 1949 and has grown to nearly 400 staff operating in New York and California. The GIA Diamond Grading Report includes a full page A4 report, or an A5 Diamond Dossier, with a diagram of your diamond’s clarity characteristics and unique security features.

Which Gemmological Labs are reliable?

1. The Gemmological Institute of America (GIA):

GIA is the most reputed and reliable laboratory for gem evaluation as it has developed the first internationally accepted Diamond Grading System and set the standard for diamond quality documentation around the world. The GIA Gem Trade Laboratory issues these reports on a majority of high quality diamonds over one carat in size.

How to Read a GIA Diamond Grading sample Report

The GIA Diamond Grading Report includes an assessment of the 4Cs – Colour, Clarity, Cut, and Carat Weight – along with a plotted diagram of its clarity characteristics and a graphic representation of the diamond’s proportions. GIA issues the Diamond Grading Report for loose natural diamonds only, weighing 0.15 carats or more. For standard round brilliant cut diamonds falling in the D-to-Z color range, the report also includes a GIA Cut grade.

pastedGraphic.png

1.DATE 

Date diamond was examined by GIA.

2. REPORT NUMBER 

Unique GIA report number registered in GIA’s extensive global database.

SHAPE AND CUTTING STYLE 

 The outline of the diamond (shape) and the pattern of the facet arrangement (cutting style).

MEASUREMENTS  

Diamond dimensions listed as “minimum diameter – maximum diameter x depth” for round diamonds and “length x width x depth” for fancy-shaped diamonds.

CARAT WEIGHT  

Weight given in carats, recorded to the nearest hundredth of a carat. One carat is equal to 1/5 of a gram.

COLOR GRADE  

The absence of colour ranging from colourless to light yellow or brown when compared to GIA Master Colour Comparison Diamonds. Graded on a D-to-Z scale. If “*” appears next to the colour grade, a colour treatment was detected.

CLARITY GRADE  

The relative absence of inclusions and blemishes. Graded on a scale from Flawless to Included based on size, nature, number, position, and relief of characteristics visible under 10x magnification.

CUT GRADE  

For standard, D-to-Z colour, round brilliant diamonds. Cut grade incorporates the aspects of face-up appearance, design, and craftsmanship. Graded on a scale from Excellent to Poor.

POLISH 

Smoothness of the diamond’s surface assessed on a scale ranging from Excellent to Poor.

SYMMETRY 

Exactness of the diamond’s outline, and the shape, placement, and alignment of its facets, assessed on a scale ranging from Excellent to Poor.

FLUORESCENCE  

Strength and colour of the diamond when viewed under long-wave ultraviolet light. A fluorescence description of “none” represents a range of fluorescence from Indiscernible to Very Faint. Used for identification purposes.

INSCRIPTION(S)   

Any text, symbols, logos, or a unique GIA report number inscribed on the diamond’s girdle.

COMMENTS   

Additional identifying characteristics or features that are not otherwise represented on the report. If a treatment is detected, such as laser drilling, it would be described here.

PROPORTION DIAGRAM 

Graphic profile representation of the diamond’s actual proportions.

PLOTTED DIAGRAM  

Approximates the shape and cutting style of the diamond. Symbols indicate the type or nature, position, and the approximate size of a clarity characteristic.

KEY TO SYMBOLS 

Lists the characteristics and symbols shown on the plotting diagram, if present.

GIA COLOR SCALE 

Illustrates the GIA Colour grades and their relative positions in the GIA Diamond Colour Grading System.

GIA CLARITY SCALE 

Illustrates the GIA Clarity grades and their relative positions in the GIA Diamond Clarity Grading System.

GIA CUT SCALE  

Illustrates the GIA Cut grades and their relative position in the GIA Diamond Cut Grading System. Available for standard round brilliant cut diamonds in the D-to-Z color range and Flawless-to-I3 clarity range.

SECURITY FEATURES  

Microprinting, security screens, watermarks, a two-dimensional barcode, a hologram, and sheet numbering safeguard report integrity and facilitate document authentication.

QR CODE 

A two-dimensional barcode that, when scanned, verifies data on the report against the GIA database.