Melee Size Diamond Identification
Our unique, new system is able to separate natural diamonds from all types of synthetic diamonds and treated stones in large lots of small-sized specimens. The system is based on internationally accepted methods of Diamond identification, such as: Raman spectroscopy, absorbance measurement in the UV-VIS-NIR range, FTIR and photoluminescence (at room and liquid nitrogen temperature levels).
We are able to check every single stone quickly, efficiently and accurately.
Prices* for round cut, size 0.005 – 0.50ct:1 – 10 pcs | - | $10 | ppc |
10 – 100 pcs | - | $5 | ppc |
100 – 500 pcs | - | $4 | ppc |
500 – 1000 pcs | - | $3 | ppc |
1000 + pcs | - | $2 | ppc |
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We accurately type Ib stones and IIa stones in large lots of small-sized yellow or brown diamonds, respectively.
Ib Type - used for irradiation and annealing treatment for pink
IIa Type - used for HPHT treatment for colorless
We are able to check every single stone quickly, efficiently and accurately.
Prices* for round cut, size 0.005 – 0.99ct:1 – 10 pcs | - | $10 | ppc |
10 – 100 pcs | - | $2 | ppc |
100 – 500 pcs | - | $1 | ppc |
500 – 1000 pcs | - | $0.80 | ppc |
1000 + pcs | - | $0.60 | ppc |
*For mixed sizes or colors, AG&J charges an additional 50% to the standard price. We accept following size lots: 0.005 – 0.01/ 0.02 – 0.03/ 0.04 – 0.07/ 0.07 – 0.14/ 0.17 – 0.50/ 0.50 – 0.99.
Diamond Typing for HPHT treatment: Colorless, Blue, Pink, Yellow0 - 1 ct | - | $10 | ppc |
1 - 3 ct | - | $20 | ppc |
3 + ct | - | $30 | ppc |