PAT. NO. 6557220
PAT. NO. 6557220
PAT. NO. 6557220
PAT. NO. 6557220
PAT. NO. 6557220
Guardian II earring backs
PAT. NO. 6557220
PAT. NO. 6557220
PAT. NO. 6557220
PAT. NO. 6557220
PAT. NO. 6557220
Guardian II earring backs

Guardian II Replacement Earring Backs

$66.95 USD
/
Metal Quality
Pad Size
Unit
  • 10 items in stock, ship in 1-3 business days domestic
  • Made to order just for you

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The safety ear backs allow you to spare or replace your original Guardian II ear backs with patent number 6557220.

  • Available in 14K, 18K white and yellow gold and platinum.
  • Available pad size as following
Earring Back Pad OD: 6.1 mm 7.1 mm
Weight: 14K - 0.23 DWT (0.37 grams),
18K - 0.26 DWT (0.41 grams),
PT - 0.355 DWT (0.55 grams).		 14K -0.37 DWT (0.58 grams),
18K - 0.41 DWT (0.64 grams),
PT - 0.56 DWT (0.87 grams).
Fit Post Thickness: 0.035 In (0.88 mm) 0.042 In (1.06 mm)
Fit Post Length: 0.433 In 0.433 In
  • Made in USA.
All photos are zoomed in to show details. Please choose according to the description and size at the time of purchase and let us know if you need further assistance.

Matches With
Shipping times are from the date of shipment, which means they are leaving our facility.
  • Digital Product, instant download.
  • In stock items, your order should be shipped within 2-3 business days after order verification and credit approval.

  • For non-stock items, it will be made to order for you, the processing time we need to prepare an order for shipping varies, please see product detail.
  • Special orders and customized orders, they are dependent on the complexity of the item and will provide an estimated delivery schedule after order verification and credit approval. We will send you an expected shipping time by a follow-up email.

If anything goes beyond expectations, we will send you the expected shipping time via a follow-up email. 

Please contact us if you need something expedited or with any questions regarding to shipping .

Standard Stone Size and Carat Weight Chart

Since the varying densities of different stone materials and also the varying depths of different cutting styles can result in a significantly different, even between stones with a similar carat weight. 
Estimating Weights for Standard Faceted Cut Diamond

Rounds Squares /
Princess 		Ovals
Size Weight Size Weight Size Weight
1.6 mm .02 carat 2 mm .05 carat 5 x 3 mm .25 carat
2 mm .03 carat 2.5 mm .09 carat 6 x 4 mm .5 carat
2.5 mm .06 carat 3 mm .16 carat 7 x 5 mm .75 carat
3 mm .10 carat 3.5 mm .25 carat 8 x 6 mm 1.0 carat
3.5 mm .16 carat 4 mm .33 carat 9 x 7 mm 1.5 carat
4 mm .25 carat 4.5 mm .50 carat 10 x 8 mm 2.16 carat
4.5 mm .33 carat 5 mm .75 carat 11 x 9 mm 3.5 carat
5 mm .50 carat 5.5 mm 1.0 carat 12 x 10 mm 4.25 carat
5.5 mm .62 carat 6 mm 1.25 carat 14 x 10 mm 6.0 carat
6 mm .75 carat 6.5 mm 1.5 carat 14 x 12 mm 8.0 carat
6.5 mm 1.0 carat 7 mm 2.0 carat 16 x 12 mm 9.33 carat
7 mm 1.25 carat 7.5 mm 2.5 carat 18 x 13 mm 14.2 carat
7.5 mm 1.62 carat 8 mm 3.0 carat
8 mm 2.0 carat 8.5 mm  3.75 carat
8.5 mm 2.33 carat 9 mm 4.0 carat
9 mm 2.9 carat 9.5 mm 5.0 carat
9.5mm 3.25 carat 10 mm 5.5 carat
10 mm 3.75 carat 10.5 mm 6.0 carat
10.5 mm 4.5 carat 11 mm 7.5 carat
11 mm 5.0 carat 12 mm 9.5 carat
11.5 mm 5.375 carat 13 mm 13.2 carat
12 mm 6.125 carat 14 mm 16.5 carat
13 mm 7.75 carat 15 mm 20.25 carat
14 mm 9.75 carat 16 mm 24.6 carat
15 mm 11.85 carat
16 mm 16 carat
17 mm 17.25 carat
8 mm 20.5 carat
19 mm 24.0 carat
20 mm 28.0 carat
21 mm 34.8 carat
22 mm 41.8 carat
 
Emerald Pear Marquise
Size Weight Size Weight Size Weight
5 x 3 mm .33 carat 3 x 2 mm .05 carat 4 x 2 mm .08 carat
6 x 4 mm .625 carat 4 x 3 mm .14 carat 5 x 2.5 mm .15 carat
7 x 5 mm 1.25 carat 5 x 3 mm .2 carat 5 x 3 mm .20 carat
8 x 6 mm 1.75 carat 6 x 4 mm .33 carat 6 x 3 mm .25 carat
9 x 7 mm 2.5 carat 7 x 5 mm .5 carat 8 x 4 mm .50 carat
10 x 8 mm 3.75 carat 8 x 5 mm .9 carat 9 x 5 mm .75 carat
11 x 9 mm 4.75 carat 9 x 6 mm 1.5 carat 10 x 5 mm .9 carat
12 x 10 mm 5.0 carat 10 x 7 mm 1.75 carat 11 X 5.5 mm 1.12 carat
14 x 10 mm 8.5 carat 11 x 7 mm 2 carat 12 x 6 mm 2.0 carat
14 x 12 mm 9.0 carat 12 x 8 mm 3.0 carat 14 x 7 mm 3.0 carat
16 x 12 mm 10.5 carat 13 x 9 mm 3.5 carat 16 x 8 mm 4.0 carat
18 x 13 mm 14.2 carat 15 x 10 mm 5 carat 18 x 9 mm 6.0 carat
20 x 15 mm 20.3 carat 16 x 12 mm 8.6 carat 20 x 10 mm 8.5 carat
25 x 18 mm 52.2 carat 18 x 12 mm 9.3 carat
25 x 18 mm 30.6 carat 20 x 15 mm 18 carat
30 x 22 mm 54.5 carat 22 x 16 mm 23 carat
23 x 17 mm 25 carat
25 x 18mm 27 carat
27 x 20mm 30 carat
30 x 22mm 34 carat
 
Cushion Heart Asscher
Size Weight Size Weight Size Weight
4 x 4 mm .375 carat 4 x 4 mm .25 carat 3 x 3 mm .16 carat
4.5 x 4.5 mm .5 carat 5 x 5 mm .5 carat 3.5 x 3.5 mm .25 carat
5 x 5 mm .625 carat 6 x 6 mm .75 carat 4 x 4 mm .33 carat
5.5 x 5.5 mm .75 carat 6.5 x& 6..5 mm 1.0 carat 4.5 x 4.5 mm .5 carat
6 x 6 mm 1.25 carat 7 x 7 mm 1.5 carat 5 x 5 mm .75 carat
6.5 x 6..5 mm 1.5 carat 8 x 8 mm 2.0 carat 5.5 x 5.5 mm 1.0 carat
7 x 7 mm 2.0 carat 9 x 9 mm 3.0 carat 5.9 x 5.9 mm 1.33 carat
8 x 6 mm 2.0 carat 10 x 10 mm 4.0 carat 6 x 6 mm 1.25 carat
8 x 8 mm 2.9 carat 11 x 11 mm 5.0 carat 6.25 x 6.25 mm 1.37 carat
9 x 7 mm 2.5 carat 12 x 12 mm 5.66 carat 6.5 x 6.5mm 1.5 carat
10 x 8 mm 4.0 carat 15 x 15 mm 10.75 carat 6.6 x 6.6 mm 1.75 carat
12 x 10 mm 7.5 carat 16 x 16 mm 13.25 carat 7 x 7 mm 2.0 carat
14 x 10 mm 9.5 carat 18 x 18 mm 15.33 carat 8 x 8 mm 3.0 carat

 

Trillion
Size Weight Size Weight
2 x 2 x 2 mm 0.04 carat
3 x 3 x 3mm 0.06 carat
3.5 x 3.5 x 3.5mm 0.125 carat
4 x 4 x 4mm 0.1666 carat
4.5 x 4.5 x 4.5mm 0.2 carat
5 x 5 x 5mm 0.333 carat
5.5 x 5.5 x 5.5mm 0.375 carat
6 x 6 x 6mm 0.5 carat


Most mass-produced jewelry settings come in standard stone sizes.
If your gemstone does not fit in a standard setting, you will need to custom made.

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