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Diomand 0.45 Ct Top Quality Blue Diamond Perfect Round Shape
- 存貨單位
- 尺寸(毫米)
- 4.1 x 4.1 x 3.2mm
- 重量 (cts)
- 0.45
- Treatment
- HPHT
- Shape
- Round
- Type
- Faceted
- Clarity
- VVS
- 顏色
-
Diamond’s characteristic chemical composition and crystal structure make it a unique member of the mineral kingdom.Diamond is the only gem made of a single element: It is typically about 99.95 percent carbon. The other 0.05 percent can include one or more trace elements, which are atoms that aren’t part of the diamond’s essential chemistry. Some trace elements can influence its color or crystal shape.
The way a mineral forms helps determine its identity. Diamond forms under high temperature and pressure conditions that exist only within a specific depth range (about 100 miles) beneath the earth’s surface.
Diamond’s crystal structure is isometric, which means the carbon atoms are bonded in essentially the same way in all directions. Another mineral, graphite, also contains only carbon, but its formation process and crystal structure are very different. The result is that graphite is so soft that you can write with it, while the diamond is so hard that you can only scratch it with another diamond.
Without any one of these factors, the diamond might be just another mineral. Fortunately, though, this special combination of chemical composition, crystal structure, and formation process gives diamonds the qualities that make them extraordinary.
On almost all modern birthstone lists, diamond is recognized today as the birthstone for April. Diamond is also the gem that marks the 60th and 75th wedding anniversaries.
| 運輸商 | 運送至:國家 | 運送到世界其他地區 | 聯合運輸( 泰國 ) | 聯合運輸(世界其他地區) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
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| FedEx |
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- 存貨單位
- 尺寸(毫米)
- 4.1 x 4.1 x 3.2 mm
- 重量 (cts)
- 0.45
- Treatment
- HPHT
- Shape
- Round
- Type
- Faceted
- Clarity
- VVS
- 顏色
-
Diamond’s characteristic chemical composition and crystal structure make it a unique member of the mineral kingdom.Diamond is the only gem made of a single element: It is typically about 99.95 percent carbon. The other 0.05 percent can include one or more trace elements, which are atoms that aren’t part of the diamond’s essential chemistry. Some trace elements can influence its color or crystal shape.
The way a mineral forms helps determine its identity. Diamond forms under high temperature and pressure conditions that exist only within a specific depth range (about 100 miles) beneath the earth’s surface.
Diamond’s crystal structure is isometric, which means the carbon atoms are bonded in essentially the same way in all directions. Another mineral, graphite, also contains only carbon, but its formation process and crystal structure are very different. The result is that graphite is so soft that you can write with it, while the diamond is so hard that you can only scratch it with another diamond.
Without any one of these factors, the diamond might be just another mineral. Fortunately, though, this special combination of chemical composition, crystal structure, and formation process gives diamonds the qualities that make them extraordinary.
On almost all modern birthstone lists, diamond is recognized today as the birthstone for April. Diamond is also the gem that marks the 60th and 75th wedding anniversaries.
| 運輸商 | 運送至:國家 | 運送到世界其他地區 | 聯合運輸( 泰國 ) | 聯合運輸(世界其他地區) |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
|
|
|
為什麼用戶出價高於自己?
出價時,這是一個人願意為產品出價的最高金額。然後,我們的系統將自動代表投標人出價,逐步將出價提高到最高價,以保持其最高出價者的地位。
當出現「自動出價」圖示時,表示我們的系統正在根據投標者的最高出價主動為其出價。這可能看起來好像出價者出價高於自己,但這只是系統更新出價以反映出價者最高限額的結果。