Front view of 3 carat total weight white round brilliant studs and pendant set in 14k yellow gold
Side view of 1 carat total weight white lab grown diamond pendant in 14k yellow gold
Back view of 2 carat total weight white lab grown diamond studs in 14k yellow gold
Side view of 2 carat total weight white lab grown diamond studs in 14k yellow gold
Model shot of  3 carat total weight white round brilliant studs and pendant set in 14k yellow gold
Save with a set!

Lab-Grown Diamond 3ct. tw. Round Brilliant Studs and Pendant Yellow Gold Set

Regular price $2,700

Save with a set – worth $3200

Quality Guide

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 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
6
7 8
 UK
L
O
Q
Europe
51
55
57
Inside Circumference - MM
5.3
5.5
5.7
Inside Circumference - Inches
2.1
2.3
2.5

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

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Quality guarantee

30 day returns

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Front view of 3 carat total weight white round brilliant studs and pendant set in 14k yellow gold
Side view of 1 carat total weight white lab grown diamond pendant in 14k yellow gold
Back view of 2 carat total weight white lab grown diamond studs in 14k yellow gold
Side view of 2 carat total weight white lab grown diamond studs in 14k yellow gold
Model shot of  3 carat total weight white round brilliant studs and pendant set in 14k yellow gold

Our quality

Cut

Very Good

We grow our stones at the optimal size and shape for cutting, maximizing their exceptional brilliance and fire.

Clarity

VS or Better

Our stones have minor inclusions that cannot be seen by the naked eye, and are difficult to see at 10x magnification.

Color

Near Colorless

Technically defined as between G and J and means that only a trained gemologist can detect a trace of color.

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+

Nearly colorless

Very good cut

VS or better clarity

Nearly colorless

The Lightbox Lab

Learn everything there is to know about lab-grown diamonds and our state-of-the-art lab in Portland, Oregon where we make them!

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Science Behind The Sparkle

Our lab-grown diamonds are made in a lab. By scientists. For you. Hacking a billion year process to create high quality sparkle in about two weeks, at 800 USD a carat.

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