Our Services

Diamond Certification (GIA, HRD and/or IGI):

Send your diamonds to our office for unbiased gem grading and analysis whether through GIA, HRD or IGI. Laser inscription and/or sealing might here also be considered. We acknowledge receipt of your items which are then being insured and safely being returned to you through Fedex together with its certificate once it has been produced.

 

Diamond Repolishing / Recut:

Take advantage of our repolishing services to get the most out of your diamonds. We use a number of trustworthy and experienced polishers to get your diamond to your desired size and quality. A pre-assessment of the outcome is being made. Thereafter, you decide which carat size and quality to be kept. Only once your greenlight has been given, will the work be proceeded with. On completion, you may want us to certify the stone(s). This is also fully possible. Again, the stone(s) are being returned to you through Fedex with all guarantees and precautionary measures taken.

 

Diamond purchase/re-purchase:

SGI is happy to make you a purchase offer on your diamond(s). We provide you with an initial assessment of the value of your stone(s) through mail or over the phone. A definitive repurchase value will be given upon receipt of your goods. You then decide whether you want to go ahead with the sales.

 

Logistics & Transportation Costs:

 

 

Shipment Method

Value of Goods

Western & Northern Europe

Eastern Europe

Outside EU*

UPS Express

Below €300

$50

$50

$80

b/w €300 and €1449

$50

$50

$80

b/w €1500 and €1999

$25

$35

$70

Above €2000

$0

$0

$60

Above €4000

$0

$0

$0

 

 

Insured Post (Bpost)

Below €1000

$20

N/A

N/A

Above €1000

$0

N/A

N/A

 

 

* A flat fee of $60 applies for countries outside EU (Diamond Office)