Ferdinando Veronesi

Cielo

Tomasini Francia

Restivo

Fecarotta Gioielli

Brinkmann

Saro Tedeschi

Victor Azzopardi

Il Monile Gioielleria

Giubilato Gioielleria

Gioielleria Amantia

Breda Gioielli

Scaduto Gioielleria

Curto Gioielleria

Giorgio Szulin

Vecchia Savona

Leiato & Irmao

Acerbi Gioielli

Gioielleria Franzò

Gioielleria Leonardi

Ronchetti Gioielleria

Celio Gioielleria

Negri Gioielli

Il Diadema

Nolan Gioielli

Schepis Gioielli

Gioielleria Bazzarelli

Gold and Silver Gioielleria

Renna Gioielli

Gioielleria Rapisardi

Brillantini Gioielli

House of Diamonds

Gioielleria Zambon

G&G Amighini Gioielleria

Massari Gioielli

Gioielleria Agnolucci

La Bottega dell’Orafo

Darrigo Artoro

Pellicciari 1922

Gillet Gioielli

Tedeschi Gioielli

Cresci

Fanton Gioelli

Casadei Gioielli

Sorite Gioielli

Stecco Gioielli

Oreficeria De Meglio

Di Marsico Gioielleria

Stizzo Gioielli

Jolly Gallery

Del Vago

Bellandi Firenze

Gioielleria Floris

ALMR Gioielli

De Nardi Gioielleria

Pharaon Jewelry

Gold Emotion

Orafi Italiani

Risato Gioielli

Berio Oreficeria

Gioielleria Tansini

Gioielleria Circelli

Natural Diamond Grading Report

An HRD Antwerp Natural Diamond Grading Report is an objective report that confirms a polished natural diamond’s authenticity and provides a detailed description of its key characteristics, the so- called 4Cs: Carat, Colour, Clarity and Cut.

Price List

Lab Standard Price

Antwerp Lab
India Lab
Dubai Lab

EXAMINATION

When registered in our lab, your diamond or jewellery will be thoroughly examined by our graders and will undergo the following steps:

WEIGHT

SCREENING

MEASUREMENT

FLUORESCENCE

COLOUR

CLARITY

CUT

The weight of a diamond is expressed in carats. One carat equals 0.2 grams or 100 points, which indicates the size. HRD Antwerp has extremely accurate scales that measure up to five figures after the decimal point.

The first step is to determine if your diamond is natural, laboratory-grown or treated. If a diamond does not pass the initial test, it will be directed to our research department to further determine its nature.

Your diamond is accurately measured in millimetres as mentioned below: minimum diameter – maximum diameter in mm x height in mm (example: 6.44 – 6.47 mm x 4.04 mm)

The fluorescence grade under long wave is mentioned in the report. For the “Natural Diamond Colour Grading Report” the fluorescence grade under short wave is also mentioned.

Most diamonds range in colour from colourless (‘D’) to tinted colour (‘Z’). The colour grade is determined by comparison with a series of master stones, the best grade being D.

All natural diamonds have traces of their growth history, which determines the diamond’s purity. In most gem-quality diamonds, these are minor internal characteristics or inclusions. The very best and rarest stones are graded ‘loupe clean’ or 'LC'.

A diamond’s cut is essential to its beauty and is a combination of craftsmanship and scientific knowledge. The right proportions, symmetry and polish create internal reflections that maximise a stone’s sparkle, brilliance and fire.

ADDITIONAL SERVICES

Take advantage of our additional services to add value to your diamond. For more information and prices, please consult our price lists or contact our helpdesk via e-mail: diamondlab@hrdantwerp.com or +32 3 222 06 25

HEARTS & ARROWS DIAMONDS

LASER INSCRIPTION

SEALING

Hearts & Arrows diamonds are precisely cut round brilliants that, when examined using a special viewer, display eight hearts through the pavilion of the diamond (from below) and eight arrows through the crown of the diamond (from above). The appearance of the pattern is a strong indicator of a top-quality cut.

o inscribe diamonds with lasers, HRD Antwerp uses high-quality excimer shortwave technology. It cannot be seen with the naked eye and consequently does not affect the diamond’s physical appearance or value. Laser inscription can either be used to match your diamond and its corresponding grading report or to customise your diamond with a personalised message or logo.

Sealing guarantees that an issued grading report and the corresponding diamond belong together, and it keeps the diamond safe from oil and dirt. The HRD Antwerp sealing is tamper-proof.

Laboratory Grown Diamond Grading Report

Every diamond is tested to determine whether it is natural. If it is found to be laboratory grown, under disclosed conditions, we will issue a Laboratory Grown Diamond Grading Report, with this clear wording on the cover. Each laboratory grown diamond is laser inscribed with “LAB GROWN” and report number. The presence of the laser inscription is mentioned on the Grading Report, including a reference number and statement that the diamond has been laboratory grown. The same nomenclature as in a Natural Diamond Grading Report is used, with a detailed description of the 4Cs.

Price List

Lab Standard Price

Antwerp Lab
India Lab
Dubai Lab

EXAMINATION

When registered in our lab, your diamond or jewellery will be thoroughly examined by our graders and will undergo the following steps:

WEIGHT

SCREENING

The weight of a diamond is expressed in carats. One carat equals 0.2 grams or 100 points, which indicates the size. HRD Antwerp has extremely accurate scales that measure up to five figures after the decimal point.

The first step is to determine if your diamond is natural, laboratory-grown or treated. If a diamond does not pass the initial test, it will be directed to our research department to further determine its nature.

ADDITIONAL SERVICES

Take advantage of our additional services to add value to your diamond. For more information and prices, please consult our price lists or contact our helpdesk via e-mail: diamondlab@hrdantwerp.com or +32 3 222 06 25

Jewellery Report

Our laboratory has the knowledge and instruments needed to thoroughly analyse your jewellery. An HRD Antwerp Jewellery Report is an official document in which a jewellery item is authenticated for different purposes, such as insurance, inheritance or purchase. It can also be used to determine the market value of a jewel. These reports provide a general description of the jewel, the diamonds it contains and the precious metals of which it is made.

Price List

Lab Standard Price

Antwerp Lab
India Lab
Dubai Lab

EXAMINATION

When registered in our lab, your diamond or jewellery will be thoroughly examined by our graders and will undergo the following steps:

WEIGHT

SCREENING

The weight of a diamond is expressed in carats. One carat equals 0.2 grams or 100 points, which indicates the size. HRD Antwerp has extremely accurate scales that measure up to five figures after the decimal point.

The first step is to determine if your diamond is natural, laboratory-grown or treated. If a diamond does not pass the initial test, it will be directed to our research department to further determine its nature.

ADDITIONAL SERVICES

Take advantage of our additional services to add value to your diamond. For more information and prices, please consult our price lists or contact our helpdesk via e-mail: diamondlab@hrdantwerp.com or +32 3 222 06 25

Natural Diamond Colour Grading Report

This grading report mentions the colour origin of your diamond and describes its colour characteristics, as well as its short- and long-wave luminescence.

Price List

Lab Standard Price

Antwerp Lab

EXAMINATION

When registered in our lab, your diamond or jewellery will be thoroughly examined by our graders and will undergo the following steps: