3 Inch Adjustable Box Chain Extender with Heart Tag
- In stock, ship in 1-3 business days domestic
This little add-on provides piece with versatility making it easier for them to mix and match any given chain with other necklaces to create a one-of-a-kind look.
Upgrade your layered necklace with our premium 1.2mm width box necklace extender! Crafted from 14k solid gold or sterling silver, this adjustable chain features a lobster clasp and a cute heart charm.
You can easily add up to 3 inches of length to your favorite necklaces, creating a trendy and personalized look.
- Approx. weight:
- 14K gold: 0.765 DWT (1.19 grams),
- Silver: 0.611 DWT (0.95 grams).
- Made in USA.
Matches With
The actual stone size of the carat weight may vary depend on the material and other factors such as depth and pavilion angle. Actual measurements (length x width x height) and a picture of the stone to better assist you.
To measure gems with a ruler / Calipers:
1. Place the stone on a flat surface with the pointed facing up,
2. Measure the length of the longest dimension,
3. Measure the longest width perpendicular to the length,
4. Measure the depth by placing the stone tip up, holding a ruler vertically against the side of the stone and measuring the distance from the flat table surface to the culet.
If you're not sure how to accurately measure a gems, seek help from a local jeweler.
If there is anything else we can help, please feel free to contact us.
Standard Stone Size and Carat Weight Chart
| 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.
- 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 .Use collapsible tabs for more detailed information that will help customers make a purchasing decision.
Ex: Shipping and return policies, size guides, and other common questions.