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Introducing
Lightbox Finest™

At Lightbox we make some of the finest laboratory-grown diamonds you can find. We call them Lightbox Finest™.

Grown from seed to stone

To create a Lightbox Finest™ stone, we start with an already-great stone: our classic Lightbox lab-grown diamond.

seed
rough stone

Shine Refined

Our new Lightbox Finest™ technology then fuses our leading patented CVD growth method with a secondary refinement where each stone is once more subjected to extreme heat and pressure in our lab

It emerges VVS clarity, and Colorless D, E, F - the highest color grade a stone can be.

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Discover the finest collection

Finest
Hover image Finest Lab-Grown Diamond 1ct. tw. Round Brilliant Solitaire Studs | White

cuts-solitaire-icon Available in other colors

Finest Lab-Grown Diamond 1ct. tw. Round Brilliant Solitaire Studs

$2,000
$2,000
Finest
Hover image Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Pendant | Pink

cuts-solitaire-icon Available in other colors

Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Pendant

$2,000
$2,000
Finest
Hover image Finest Lab-Grown Loose 1ct. Round Brilliant Diamond | Blue

Finest Lab-Grown Loose 1ct. Round Brilliant Diamond

$1,500
$1,500
Finest
Hover image Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Single Stud | White

cuts-solitaire-icon Available in other colors

Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Single Stud

$1,750
$1,750
Finest
Hover image Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Pendant | Blue

cuts-solitaire-icon Available in other colors

Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Pendant

$2,000
$2,000
Finest
Hover image Finest Lab-Grown Loose 1ct. Round Brilliant Diamond | White

Finest Lab-Grown Loose 1ct. Round Brilliant Diamond

$1,500
$1,500
Finest
Hover image Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Pendant | White

cuts-solitaire-icon Available in other colors

Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Pendant

$2,000
$2,000
Finest
Hover image Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Single Stud | Pink

cuts-solitaire-icon Available in other colors

Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Single Stud

$1,750
$1,750
Finest
Hover image Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Single Stud | Blue

cuts-solitaire-icon Available in other colors

Finest Lab-Grown Diamond 1ct. Round Brilliant Solitaire Single Stud

$1,750
$1,750
SOLD OUT
Hover image Finest Lab-Grown Loose 1ct. Round Brilliant Diamond | Pink

Finest Lab-Grown Loose 1ct. Round Brilliant Diamond

$1,500
$1,500

Shop the look

Elevate your every day in Lightbox Finest™ studs and pendants. Set in solid 18k gold, each exceptional stone is the epitome of high impact from high quality.  

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Excellent cut

Post-growth, each Finest stone is cut for exceptional brilliance, to the highest industry standard of ‘Excellent’.

Our mark of quality

Invisible to the naked eye, we laser inscribe each stone beneath its surface with our mark of quality -- your guarantee it has met its Lightbox Finest™ quality promise.

set in 18k gold

A Finest stone deserves an upgraded setting, with each piece in the Finest collection hand-set in 18k gold to withstand daily life and keep your stone secure.
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