Front view of pink Lightbox Finest 2 carat total weight round brilliant studs in 18k white gold
Side view of pink Lightbox Finest 2 carat total weight round brilliant studs in 18k white gold
Back view of pink Lightbox Finest 2 carat total weight round brilliant studs in 18k white gold
Lightbox Finest packaging
Close up model shot of pink Lightbox Finest 2 carat total weight round brilliant studs in 18k white gold
Finest

Finest Lab-Grown Diamond 2ct. tw. Round Brilliant Solitaire Studs

Regular price $3,500

Quality Guide

Lightbox lab-grown diamonds are grown from 100% renewable energy to our precise quality standards. Each stone is then cut for maximum brilliance, ensuring your lab-grown diamond reaches the grades set out below or higher, inscribed with a mark of quality invisible to the naked eye. 

All our stones are made to a consistently high standard and are inscribed with a mark of quality invisible to the naked eye.

CUT Very good Excellent
CLARITY VS or better VVS
COLOR Nearly colorless Colorless
 

Carat Weight Guide

The total weight of our products may vary, so please see the table below for more information about the carat weights we offer on stones:

 

Lightbox Finest™ 

Total Carat Weight Min Carat Weight Max Carat Weight
1 0.97 1.10

 

Lightbox Finest™ Loose

Total Carat Weight Min Carat Weight Max Carat Weight Diameter Girdle (Approx Min in mm) Diameter Girdle (Approx Max in mm)
1 0.97 1.05 6.36 6.54

 

Lightbox 

Total Carat Weight Min Carat Weight Max Carat Weight
1/10 0.09 0.11
1/8 0.11 0.13
1/5 0.18 0.22
1/4 0.23 0.28
3/8 0.35 0.44
1/2 0.47 0.53
5/8 0.59 0.66
3/4 0.71 0.79
1 0.95 1.10
1-1/8 1.06 1.18
1-1/2 1.46 1.58
2 1.95 2.10

 


Lightbox Round Brilliant Loose

Total Carat Weight Min Carat Weight Max Carat Weight Diameter Girdle (Approx Min in mm) Diameter Girdle (Approx Max in mm)
1/2 0.48 0.53 5.01 5.21
3/4 0.71 0.79 5.75 5.95
1 0.95 1.05 6.24 6.64
1 1/2 1.40 1.50 7.06 7.46
1 3/4 1.70 1.80 7.45 7.85
2 1.95 2.10 7.80 8.20

 

Lightbox Princess Loose

Total Carat Weight Min Carat Weight Max Carat Weight Diameter Girdle (Approx Min in mm) Diameter Girdle (Approx Max in mm)
1/2 0.48 0.53 4.19 4.39
5/8 0.59 0.66 4.50 4.70
3/4 0.71 0.79 4.82 5.02
7/8 0.83 0.92 5.07 5.27
1 0.95 1.05 5.31 5.51
1 1/8 1.07 1.18 5.53 5.73

 

Lightbox Cushion Loose

Total Carat Weight Min Carat Weight Max Carat Weight Diameter Girdle (Approx Min in mm) Diameter Girdle (Approx Max in mm) 
1/2 0.48 0.53 4.32 4.52
5/8 0.59 0.66 4.67 4.87
3/4 0.71 0.79 4.97 5.17
7/8 0.83 0.92 5.24 5.44
1 0.95 1.05 5.48 5.68

 

Lightbox Emerald Loose

Total Carat Weight Min Carat Weight Max Carat Weight Diameter Girdle (Approx Min in mm) Diameter Girdle (Approx Max in mm) 
1 0.95 1.05 4.65 5.05

 

Lightbox Oval Loose

Total Carat Weight Min Carat Weight Max Carat Weight Diameter Girdle (Approx Min in mm) Diameter Girdle (Approx Max in mm)
1 0.95 1.05 5.45 5.85

 

Lightbox Baguette Loose

Total Carat Weight Min Carat Weight Max Carat Weight Diameter Girdle (Approx Min in mm) Diameter Girdle (Approx Max in mm) 
1/2 0.48 0.53 5.24 5.44
 

Ring Size Guide

Compare your finger measurement to the chart below, and choose your corresponding ring size.

1. Size Conversion Chart

 US  5  5.5
 6
 6.5   7  7.7    8  8.5    9  
 UK
 J  K
 L
 M
 N
 O
 P
 Q  R
Europe
 48.5  50
 51
 52  55  56
 57
 58.5  59
Inside Circumference - MM
49.3 50.6
51.9
 53.1
54.4
55.7 57 58.3 59.5
Inside Circumference - Inches
1.94 1.99
2.04
2.09
2.14
2.19
2.24
2.29 2.34

2. Check the size of your existing ring

Print or download our ring size guide and follow instructions to find out what size your existing ring is. Ring size guide

Please note: This is a printable desktop download. If you are viewing on a mobile screen, the ring sizer will appear smaller and give an inaccurate measurement.

3. Helpful Hints

1. Our dominant hands are generally slightly larger — make sure you measure the right finger on the correct hand!

2. Rings with wider bands will fit a bit tighter. If you plan to measure one of your  rings, try to measure one with a similar width as the ring you want to purchase.

3. Make sure the finger is at normal body temperature — fingers can shrink or expand when hot or cold.

4. Your fingers tend to change size throughout the day — the best time to measure your finger is at the end of the day.

5. If your knuckle is bigger, take 2 measurements and choose a size in between — rings need to fit over the knuckle but not be too loose or it will shift around.

 

Grown with 100% renewable energy

Free shipping

Quality guarantee

30 day returns

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Front view of pink Lightbox Finest 2 carat total weight round brilliant studs in 18k white gold
Side view of pink Lightbox Finest 2 carat total weight round brilliant studs in 18k white gold
Back view of pink Lightbox Finest 2 carat total weight round brilliant studs in 18k white gold
Lightbox Finest packaging
Close up model shot of pink Lightbox Finest 2 carat total weight round brilliant studs in 18k white gold

Our quality

Our leading technology means our lab-grown diamonds are among the finest you can find. They’re inscribed with a mark of quality invisible to the naked eye, signifying each stone has met the internationally recognized standards of the '4 C's'

Very good cut

VS or better clarity+

Excellent cut

VVS or better clarity

The Lightbox Lab

We grow our diamonds at our Lightbox Lab in Portland, Oregon using 100% renewable wind energy.

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Science Behind The Sparkle

Our cutting-edge technology can grow a one carat lab-grown diamond in about two weeks.

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