Sapphire Birthstone Charm Necklace in 14K Yellow Gold, 15 Inch
Chain length guide

Product information
- Metal14K Yellow goldPolished
- StoneSapphire3 mm round
- Size18 inChain length
- Weight0.45 gTotal item weight
Description
Discover the timeless elegance of the 14K Madi K 3mm Sapphire Heart Birthstone Necklace , beautifully crafted to symbolize love, beauty, and September's birthstone. This stunning necklace showcases a brilliant natural sapphire in a captivating heart shape, set in luxurious 14K yellow gold. Offering both style and sentiment, this breathtaking piece is perfect for celebrating birthdays, anniversaries, or simply as an expression of affection.
Whether you’re treating yourself or surprising a loved one, the deep blue hue of the sapphire—enhanced through natural heating—radiates a sense of sophistication and charm. The necklace’s 15-inch delicate gold chain fits gracefully against the skin, while the petite 3mm sapphire pendant adds just the right touch of sparkle and refinement.
Key Features
- Crafted in 14K yellow gold with a polished finish
- Set with blue sapphire
- Rope necklace design
- Measures 15 inches long
- Secured by a spring ring clasp
- Approximate weight of 0.45 grams
- Stone treatment: heat-treated
Product details14K yellow gold · Sapphire · 0.45 g
Metal
- Metal
- Yellow gold
- Purity
- 14K
- Finish
- Polished
- Construction
- Solid
- Made by
- Die Struck
Center stone
- Stone
- Sapphire
- Origin
- Natural
- Shape
- Round
- Size
- 3 mm
- Carat weight
- 0.17 ct
- Color
- Blue
- Number of stones
- 1
- Cut
- Faceted
- Quality
- A
- Treatment
- Heating
Measurements
- Pendant length
- 10 mm
- Pendant width
- 6 mm
- Chain length
- 18 in
- Chain width
- 0.5 mm
- Clasp
- Spring Ring
- Weight
- 0.45 g
Style & design
- Necklace type
- Necklace with Pendants
- Chain style
- Rope
- Style
- Romantic
More
- Brand
- Madi K
- Made in
- United States
- Birthstone
- September
- Item #
- SJQG-GK411-15
Our standards
- Stamped with its metal type (e.g. 14K, 925)
- Colored gemstones are ethically sourced
Length & fitLength guide · 30-day length exchanges

If the length isn’t right, you can exchange it within 30 days of delivery.
Shipping & returnsFree insured shipping over $99 · 30-day returns
Free, insured shipping on US orders of $99 or more.
Return it within 30 days of delivery, unworn and in its original packaging.
Exchange it within 30 days for another size or another piece.
Covered by our One-Year Limited Jewelry Warranty against manufacturing defects.
What’s in the boxYour necklace in our signature blue padded gift box
- Your necklace
- Our signature blue padded jewelry gift box
- A packing slip with no prices on it
Jewelry careStore each piece on its own in a soft pouch
Store each piece on its own in a soft pouch or lined box, so nothing scratches it.

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Sapphire Necklaces, answered
Straight answers about sapphire necklaces. See all Sapphire Necklaces
- Free Shipping
- US Orders $99+
- Exchanges
- 30 Days
Are these sapphire necklaces natural or lab-created?
Both appear, and each title says which. Many list created or lab-created sapphire, often with lab-grown diamond, while others say plain sapphire. In general, sapphire is routinely heated to deepen its color, and that is standard across the trade. Check the product title for the exact stone type.
Which sapphire necklace is best for everyday wear?
A single small sapphire on a fine chain works best daily. It sits quietly under a collar and has little to snag. Sapphire is very hard, so the stone wears well. Titanium pieces are another sturdy choice, while three-stone and halo styles suit dinners and gifts. Sapphire pendants are worth a look too.
What affects the price of sapphire necklaces?
Metal, stone type and total carat weight drive the price. 10K, 14K, sterling silver and titanium all differ, as do natural versus lab-created stones and added diamond. Larger three-stone and halo designs usually cost more than a single stone. Use the Price filter on this page to set a budget.
Which sapphire necklace styles are most popular?
Lab-grown diamond and created sapphire necklaces in white gold lead. Three-stone styles, halo styles, and diamond and sapphire evil eye designs follow near the top. Further down are key necklaces, cross necklaces and birthstone charm necklaces. Most are 16 to 18 inches long.