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earth mined loose diamond melee

Earth Mined Diamonds

We cut our own diamonds! So you can buy from the source!

Round & Princess
Triple Excellent Make

Shape: Round | Color: F/G

Shape: Round | Color: H

Shape: Round | Color: Black

Shape: Round | Color: I/J

Shape: Princess | Color: F/G

Your Melee Powerhouse

Excellent make melee diamonds vs poor make

Triple Excellent Make

We Cut our own diamonds! Make is the forgotten factor in loose melee, but it can be the most important factor. Color & Clarity can be D, VS but if the light doesn't pass through correctly - you've got a diamond with little luster

Diamond make, diamond cut

Uniform Make

Lining up your jewelry piece with mixed-made diamonds is often as jarring as mixed-color diamonds. Other wholesalers who buy from multiple sources cannot help but have mixed-make parcels. All of our diamonds being cut in our own house helps us guarantee a uniform make.

lots of diamonds

Always in Stock
Next Day Delivery

Whether it's 10 stones of one size or 10 carats - we have the inventory to back your sales. 
No need to wait longer than "tomorrow morning, 10am"

diamond scale weight measuring

Save on Carat Weight

Dia-Co Diamonds weigh about 5-10% less than the industry norm because of our triple excellent make. For Example, 100 stones of 1.3mm fair make would be around 1ct. With triple excellent make, they weigh around 0.90-0.95ct. With us, you get the best quality & best price.

diamond measurement calibration guage

Precisely Calibrated

When making a jewelry piece, precise calibration makes a big difference with luster. Quality setting requires stones within 0.05mm deviation in size - we offer that as a standard.

Friendly Handshake

Buy from the Source

When you buy from us you're cutting out all the middle man and buying directly from a diamond-cutting house! 

diamond grading under a loupe

Graded as per GIA

Every diamond is graded by GIA graduate graders. It is common in the melee industry to call diamonds by a grade it isn't really. With us, you get exactly what you ask for - never any doubt.

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