Diamania provides damonds and you can get  diamond price from here - Diamania鑽戒.

We have numerous styles designed and manufactured in Japan. Pictures shown below are only part of our products for reference.
Price is listed based on 18K gold (including the cost of diamonds).
Most of the styles can be made of platinum, please contact us for corresponding quotation.
Kindly consider our custom-made service if you would love to create your precious and exclusive jewelry.
清鑲鑽石耳環 (E 色VS)
Weight of Diamond: 0.20carat)
Price: HK$2880
Circle of Love
Weight of Diamond: 0.11carat
Price: HK$2880
Fly With Me
Weight of Diamond: 0.17carat
Price: HK$3280
Linking Hearts
Weight of Diamond: 0.10carat
Price: HK$2680
TMP0011 (包括GIA 30份鑽石)
Weight of Diamond: 0.37carat
Price: HK$5500
TMP0020 (包括GIA 30份鑽石)
Weight of Diamond: 0.30carat
Price: HK$5200
Weight of Diamond: Around 0.20carat
Price: HK$3800