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

The Spring Drop

A new season of lab-grown diamond accessories

Shop Now

Shop new in

New In

The Round Brilliant Solitaire Studs

6 ct. tw. lab-grown diamonds

Sale price Regular price $4,200 Unit price /

Other carats available

Explore

Sold as single

The Mini Sun Beam Single Stud

²⁄₉ ct. tw. lab-grown diamonds

Sale price Regular price $240 Unit price /

Other carats available

Explore

Sold as single

The Mini Line Single Stud

⅛ ct. tw. lab-grown diamonds

Sale price Regular price $175 Unit price /

Other carats available

Explore

Sold as single

The Mini Double Stud Chain Single Earring

¹⁄₁₁ ct. tw. lab-grown diamonds

Sale price Regular price $150 Unit price /

Other carats available

Explore

Sold as single

The Mini Quatrefoil Single Stud

⅕ ct. tw. lab-grown diamonds

Sale price Regular price $220 Unit price /

Other carats available

Explore

Sold as single

The Mini Leaf Single Stud

⅛ ct. tw. lab-grown diamonds

Sale price Regular price $175 Unit price /

Other carats available

Explore

Sold as single

The Mini Double Drop Single Stud

⅕ ct. tw. lab-grown diamonds

Sale price Regular price $220 Unit price /

Other carats available

Explore

Sold as single

The Mini Angle Drop Single Earring

⅕ ct. tw. lab-grown diamonds

Sale price Regular price $220 Unit price /

Other carats available

Explore

Sold as single

The Mini Angle Drop Single Earring

⅕ ct. tw. lab-grown diamonds

Sale price Regular price $220 Unit price /

Other carats available

Explore

Shop Necklaces

Shop Earrings

Shop bracelets

Shop rings

The April List

Shop Tennis

Explore Loose Stones

The New Drop Earrings

Shop tennis necklaces

20% off

The Tennis Necklace, Large

21 ct. tw. lab-grown diamonds

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

Other carats available

Explore

20% off

The Riviera Necklace

19⅔ ct. tw. lab-grown diamonds

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

Other carats available

Explore

20% off

The Emerald Tennis Necklace

14¾ ct. tw. lab-grown diamonds

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

Other carats available

Explore

20% off

The Tennis Necklace, Small

12½ ct. tw. lab-grown diamonds

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

Other carats available

Explore

20% off

The Tennis Necklace, Medium

16 ct. tw. lab-grown diamonds

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

Other carats available

Explore

1 year warranty

Grown with 100% Renewable energy

Verified lab-grown diamond Quality

Free shipping

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

$

$

Category

Collections

Collections

Category

Collections

Collections

Lightbox Jewelry

Shop new in

The Round Brilliant Solitaire Studs

The Mini Sun Beam Single Stud

The Mini Line Single Stud

The Mini Double Stud Chain Single Earring

The Mini Quatrefoil Single Stud

The Mini Leaf Single Stud

The Mini Double Drop Single Stud

The Mini Angle Drop Single Earring

The Mini Angle Drop Single Earring

The April List

Shop tennis necklaces

The Tennis Necklace, Large

The Riviera Necklace

The Emerald Tennis Necklace

The Tennis Necklace, Small

The Tennis Necklace, Medium

Shipping & Returns

Shipping

Returns

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

Quality Guaranteed

1 Year Warranty

Grown with 100% renewable energy