Lightbox lab-grown diamond jewelry. Bringing light to life.

Up to 75% off

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65% off

The Round Brilliant Solitaire Studs

1½ ct. tw. lab-grown diamonds

Sale price $1,300 Regular price $455 Unit price /

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55% off

The Constellation Ring

1 ct. tw. lab-grown diamonds

Sale price $1,200 Regular price $540 Unit price /

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55% off

The Oval Solitaire Pendant

1 ct. lab-grown diamond

Sale price $1,000 Regular price $450 Unit price /

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75% off

Round Brilliant Lab-Grown Diamond

2½ ct. lab-grown diamond

Sale price $2,250 Regular price $563 Unit price /

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45% off

The Lloyd Climbers

⅓ ct. tw. lab-grown diamonds

Sale price $400 Regular price $220 Unit price /

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65% off

Oval Cut Lab-Grown Diamond

2 ct. lab-grown diamond

Sale price $1,200 Regular price $420 Unit price /

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45% off

The Poet Hoop Earrings

½ ct. tw. lab-grown diamonds

Sale price $700 Regular price $385 Unit price /

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45% off

The Waterfront Bangle

2³⁄₇ ct. tw. lab-grown diamonds

Sale price $2,500 Regular price $1,375 Unit price /

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65% off

Emerald Cut Lab-Grown Diamond

2½ ct. lab-grown diamond

Sale price $1,500 Regular price $525 Unit price /

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60% off

The Round Brilliant Bezel Drop Earrings

4 ct. tw. lab-grown diamonds

Sale price $2,900 Regular price $1,160 Unit price /

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65% off

Asscher Cut Lab-Grown Diamond

3 ct. lab-grown diamond

Sale price $1,800 Regular price $630 Unit price /

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The Summer Shop is open

Shop The Horizon Collection

New: Yellow Lab-Grown Diamonds

Summer Stacking

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20% off

The Tennis Necklace, Large

21 ct. tw. lab-grown diamonds

Sale price $12,600 Regular price $10,080 Unit price /

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20% off

The Riviera Necklace

19⅔ ct. tw. lab-grown diamonds

Sale price $12,779 Regular price $10,223 Unit price /

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20% off

The Emerald Tennis Necklace

14¾ ct. tw. lab-grown diamonds

Sale price $9,588 Regular price $7,670 Unit price /

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20% off

The Tennis Necklace, Small

12½ ct. tw. lab-grown diamonds

Sale price $8,125 Regular price $6,500 Unit price /

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20% off

The Tennis Necklace, Medium

16 ct. tw. lab-grown diamonds

Sale price $10,400 Regular price $8,320 Unit price /

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1 year warranty

Grown with 100% Renewable energy

Verified lab-grown diamond Quality

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US	UK	Europe	Inside circumference (mm)	Inside circumference (inches)
5	J	48.5	49.3	1.94
5.5	K	50	50.6	1.99
6	L	51	51.9	2.04
6.5	M	52	53.1	2.09
7	N	55	54.4	2.14
7.7	O	56	55.7	2.19
8	P	57	57.0	2.24
8.5	Q	58.5	58.3	2.29
9	R	59	59.3	2.34

Carat Weight	Min Carat Weight	Max Carat Weight	Diameter Girdle (approx. min. in mm)	Diameter Girdle (approx. max. in mm)
½	0.47	0.52	5.0	5.3
¾	0.71	0.78	5.6	6.0
1	0.95	1.05	6.2	6.6
1½	1.46	1.57	7.1	7.5
1¾	1.70	1.83	7.5	7.9
2	1.95	2.10	7.9	8.3
2¼	2.20	2.36	8.3	8.7
2½	2.45	2.62	8.5	8.9
3	2.95	3.15	9.2	9.6

Carat Weight	Min Carat Weight	Max Carat Weight	Length (approx. min. in mm)	Length (approx. max. in mm)
½	0.47	0.52	4.1	4.3
⁵⁄₉	0.52	0.57	4.3	4.5
⅝	0.59	0.65	4.5	4.7
¾	0.71	0.78	4.8	5.0
⅞	0.83	0.91	5.0	5.2
1	0.95	1.05	5.3	5.5
1½	1.46	1.57	6.1	6.4
1¾	1.70	1.83	6.4	6.7
2	1.95	2.10	6.6	7.0
2¼	2.20	2.36	6.9	7.3
2½	2.45	2.62	7.1	7.5
2¾	2.70	2.88	7.4	7.8
3	2.95	3.15	7.6	8.0

Carat Weight	Min Carat Weight	Max Carat Weight	Length (approx. min. in mm)	Length (approx. max. in mm)
½	0.47	0.52	4.3	4.5
⅝	0.59	0.66	4.6	4.8
¾	0.71	0.78	4.9	5.1
⅞	0.83	0.92	5.2	5.4
1	0.95	1.05	5.4	5.6
1½	1.47	1.57	6.3	6.7
1¾	1.72	1.83	6.6	7.0
2	1.95	2.10	6.9	7.3
2¼	2.20	2.36	7.2	7.6
2½	2.45	2.62	7.3	7.7
2¾	2.70	2.88	7.6	8.0
3	2.95	3.15	7.8	8.2

Carat Weight	Min Carat Weight	Max Carat Weight	Length (approx. mm)	Width (approx. mm)
1	0.95	1.05	6.6	4.7
1½	1.46	1.57	7.6	5.4
1¾	1.70	1.83	8.0	5.7
2	1.95	2.10	8.3	6.0
2¼	2.20	2.36	8.7	6.3
2½	2.45	2.62	9.0	6.4

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Lightbox Jewelry

Shop the sale edit

The Round Brilliant Solitaire Studs

The Constellation Ring

The Oval Solitaire Pendant

Round Brilliant Lab-Grown Diamond

The Lloyd Climbers

Oval Cut Lab-Grown Diamond

The Poet Hoop Earrings

The Waterfront Bangle

Emerald Cut Lab-Grown Diamond

The Round Brilliant Bezel Drop Earrings

Asscher Cut Lab-Grown Diamond

The Summer Shop is open

Lightbox Jewelry

Shop tennis necklaces

The Tennis Necklace, Large

The Riviera Necklace

The Emerald Tennis Necklace

The Tennis Necklace, Small

The Tennis Necklace, Medium

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Ring Size Guide

Size Conversion Chart

Check the size of your existing ring

Helpful Hints

Guide

Round Brilliant Stones

Princess Cut Stones

Cushion Cut Stones

Emerald Cut Stones

Oval Cut Stones

Asscher Cut Stones

Baguette Cut Stones

Trillion Cut Stones

Heart Cut Stones

Pear Cut Stones

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1 Year Warranty

Grown with 100% renewable energy