Lab Grown Diamonds in Hermosa Beach
Lab grown diamonds are real diamonds, identical in sparkle, hardness, and chemistry to mined diamonds, created in a lab instead of the earth. Because of that, a lab diamond gives you a larger, higher quality stone for the same budget.
At Seymour Jewelers in Hermosa Beach, our lab diamonds are certified, D to F in color and VS to VVS in clarity, set in 10K, 14K, and 18K gold. Come see them side by side with natural diamonds in our showroom and decide with your own eyes. We serve couples and collectors across the South Bay, including Manhattan Beach, Redondo Beach, Torrance, El Segundo, and Palos Verdes.
Shop Lab Diamonds
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1.00 CT Radiant-Cut Lab Diamond Ring in 14K Yellow Gold
$2,320.00 Add to cart -
1.50 CTW Lab Diamond Stud Earrings in White Gold
$750.00 Add to cart -
14K Gold Diamond Tennis Necklace
Price range: $5,495.00 through $28,595.00 Select options This product has multiple variants. The options may be chosen on the product page -
14K Gold Multi-Shape Lab Diamond Tennis Bracelet
Price range: $2,495.00 through $6,995.00 Select options This product has multiple variants. The options may be chosen on the product page -
14K Gold Round Diamond Tennis Bracelet
Price range: $2,495.00 through $25,995.00 Select options This product has multiple variants. The options may be chosen on the product page -
2.00 CT Lab Diamond Solitaire Necklace in Yellow Gold
$1,700.00 Add to cart -
2.00 CT Oval Lab Diamond Solitaire Ring in Yellow Gold
$1,750.00 Add to cart -
2.01 CTW Round Lab Diamond Solitaire Ring in 14K White Gold
$4,500.00 Add to cart -
3 Bezel Lab Diamonds in Whit Gold
$4,950.00 Add to cart -
3.00 CT Emerald Lab Diamond Solitaire Ring in Yellow Gold
$2,630.00 Add to cart -
3.50 CTW Oval Lab Diamond Ring in White Gold
$3,140.00 Add to cart -
3.50 CTW Pear Lab Diamond Hidden Halo Ring in White Gold
$3,140.00 Add to cart
Why Buy Your Lab Diamond at Seymour
- Certified stones: every featured lab diamond is certified (including IGI certified pieces), with the certificate available to see in store.
- See it before you commit: try pieces on in our Hermosa Beach showroom, with private consultation if you prefer. Call (310) 379-5401.
- Made here: settings, sizing, and service done by our own jewelers, onsite repairs in Hermosa Beach.
- Family owned since 1950: three generations of South Bay trust behind every piece.
Lab or Natural? We Sell Both.
- Same look and durability.
- Lab costs less per carat, so your budget goes to size and quality.
- Natural carries rarity and tradition.
- Both are guaranteed by Seymour.
Questions, Answered
Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds are chemically and physically identical to mined diamonds. They are not imitations; they are diamonds created in a laboratory instead of underground.
Are your lab diamonds certified?
Yes. Our featured lab diamonds are certified, D to F color and VS to VVS clarity, set in 10K, 14K, or 18K gold, and many are IGI certified. Ask to see the certificate in store.
Can I see lab diamonds in person before buying?
Yes, at our Hermosa Beach showroom, 1212 Hermosa Ave. Walk in during boutique hours or call (310) 379-5401 to book a private consultation.
Do you make custom lab diamond engagement rings?
Yes. Choose a certified lab diamond and a setting, or design from scratch with our jewelers through our custom design service and ring builder.
Do lab diamonds hold up for everyday wear?
Yes. A lab diamond is a diamond, the hardest natural material standard applies the same, and Seymour services what it sells with onsite repairs.
How much less does a lab diamond cost than a natural diamond?
Lab diamonds typically cost a fraction of a comparable natural diamond, so the same budget buys a noticeably larger or higher quality stone. Every lab piece on this page shows its price, and our team can compare lab and natural side by side in the showroom.
Is a lab diamond the same as a moissanite or a cubic zirconia?
No. Moissanite and cubic zirconia are different materials that imitate a diamond. A lab grown diamond is a real diamond, with the same chemical makeup, hardness, and sparkle as a mined diamond.
Can I buy a loose lab diamond and have it set at Seymour?
Yes, talk to our jewelers about loose certified lab diamonds and settings, or start from one of the finished pieces on this page and have it adjusted to your size.
If my lab diamond ring needs sizing or service later, where do I go?
Back to us. Sizing, stone tightening, cleaning, and repairs are done by our own jewelers at our Hermosa Beach store, the same team that has serviced the South Bay since 1950.
What are your hours for seeing lab diamonds in person?
The boutique is open Tuesday to Saturday 11 AM to 5 PM and Sunday 11 AM to 5 PM, closed Mondays. 1212 Hermosa Ave, Hermosa Beach. Call (310) 379-5401.
Visit our showroom or call (310) 379-5401 to book your private consultation today.
1212 Hermosa Ave, Hermosa Beach, CA 90254. Boutique hours on the Visit Us page.