Bijan Diamonds Dictionary
Bijan Diamonds dictionary of common loose diamonds and diamond jewelry terms in the industry and their meanings.
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Rose Cut
THe Rose Cut was developed in the 16th century. It has a flat bottom and domed top covered with triangular facets. The outline varies, but rose cuts are most typically round, oval, triangular or pear-shaped. In the 17th century, they gained greater acceptance and their facet arrangement became less random. Variations were always in multiples of six, such as a six-facet rose, an 18-facet rose and the full rose cut, which has a lower tier of 18 facets and upper tier of six facets coming to a point at the apex, which makes it look like a rosebud just starting to open.
Return Policy
We guarantee your satisfaction with all Bijan diamonds and jewelry. Our return policy gives you plenty of time to consider your purchase. That's why you can be sure you made the right decision.
*Shipment charges (both ways) apply to any returned goods.Automatic $25 (Sat.Delivery $45)will be deducted from your original refunded amount.
*Any Certificate or Appraiser changes are not refundable
*Shipment charges will apply(both ways) for not being available to sign for package.
Packages will be delivered to shipping address only, Due to high value packages No pickups allows at the delivery service centers.

Platinum Return Policy
Due to the constant fluctuation of Platinum prices, some platinum items are non-refundable at this point.*Note: ask for same item in white gold to be ship to you as a consignment, read more about Consignment Option

If you have purchased loose diamonds, you have 60 days to inspect them and make a final decision. If for any reason you decide not to keep the diamonds, we will accept it back in its original condition.

For Pre-set Jewelry, you have 30 days to inspect the merchandise. If you are not fully satisfied with your purchase, we will accept it back in its original condition.

Items that are custom made are not returnable nor can be canceled once the order is confirmed by one of our specialists. Custom made items are merchandise that were ordered with specific requirements or requests that are not in our inventory. If you are not sure if an item must be modified please ask one of our specialists before submitting your customized order.

NOTE:Shipment charges (both ways) apply to any returned goods.Automatic $25 will be deducted from your original refunded amount.

To return a diamond or jewelry item to Diamond on Net, follow our three step process:

1. Your Return Authorization Code

Call 800-516-1412 and you will be given a Return Authorization Code. Write this code on the return sticker found at the bottom of your original invoice. Affix the sticker to the outside of the box you are returning.

2. Package Your Return

Include all original packaging and collateral material. If your item was delivered with a diamond certificate and that certificate is not returned, you may be liable for the $250 replacement cost. For security reasons, do not write Diamond on Net anywhere on the outside of the box.

3. Insure Your Package

Please ship your return package back to via United States Postal Service. We recommend that you use the following U.S.P.S. services:

Insurance with Registered Mail

When returning your diamond, we recommend you use Registered Mail, which provides insurance coverage up to $25,000.

Registered Mail

Registered Mail is the most secure service that the U.S.P.S. offers. Items you send are placed under tight security from the point of mailing to the point of delivery. To protect against loss or damage, postal insurance is provided for articles with a maximum declared value up to $25,000.

To ship via U.S.P.S. Registered Mail, you must bring the package to your local post office, station, or branch. A postmaster may require that an article of unusually high value be presented only at the main office or at designated stations and branches

Visit the U.S.P.S. website for more details including Registered Mail fees.

Return Receipt

We recommend you use Return Receipt along with Registered Mail. With Return Receipt service, you get a postcard sent to you, signed by the person who received your package.

A return receipt must be purchased at the time of mailing. The fee for this service is $1.75. Consult your local post office for additional details.

For more information on U.S.P.S. services, contact them at 1-800-ASK-USPS (1-800-275-8777) or visit their web site at

On your invoice, if the price of the item you're returning is listed as:

You must follow these instructions exactly, failure to do so will prevent the processing of your return. If you have any questions about our return procedure, please contact us at

  • Diamond on Net will not be responsible for loss or damage of return shipments.

Upon receiving your return, the item will be reviewed a third party gemologist. Once the returned item is reviewed and accepted, your refund or new item will be processed in just a few days Please note that items showing signs of wear or those that have been engraved, altered, resized (by a jeweler other than Diamond on Net), or damaged in any way cannot be accepted for return. Returns with no Diamond on Net return code, and packages that are improperly packaged or uninsured will be refused receipt.

Rough diamonds are also called unpolished or uncut diamonds, these are raw diamonds straight from the mines and no diamond processing done to it.
Rhodium is an expensive alloy commonly applied as a hard protective coating over white gold. This coating makes the white gold metal even whiter and prevents tarnish. 18 and even 14 karat white gold have a very light hint of yellow. In order to make a white gold match the white brilliance of platinum, most if not all white gold jewelry is coated with Rhodium. This rhodium coating will fade off for some period of time (normally 3 to 6 months). It is possible to replate your white gold jewelry to regain the luster of new rhodium. We at Bijan Diamonds offer a no cost lifetime polishing and replating of Rhodium of any white gold jewelry purchased from us. All you need to do is give us a call and send us the item (fully insured registered mail) normally after a year then we will replate your white gold jewelry with rhodium. Please include a $20 check for the return shipment.