Lab Diamonds In San Mateo, CA

We are a premier provider of lab diamonds in San Mateo, CA.
Visit our jewelry store to shop our collection of certified diamonds.

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Lab Diamonds By Shape in San Mateo, CA

Shop our extensive collection of lab diamonds to find the perfect diamond shape. All diamonds we sell are GIA and AGS certified and laser inscribed as well as being verified with our state of the art diamond grading equipment.

CERTIFIED DIAMONDS

Lab Diamond Collection In San Mateo, CA

Geoffrey's Diamonds considers it an honor to become a part of your story. We have worked for over a decade to bring you beautiful, high quality diamond rings in all price ranges. As a full- service jeweler, we offer polishing, sizing, and more on your diamond engagement ring.

Browse our spectacular collection of high-quality loose diamonds in every diamond shape and carat weight, including hard-to-find larger carat stones and a full range of unique diamond shapes. We promise that you will never overpay on a high-quality Diamond.

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14K White Gold Round Diamond Halo Engagement Ring (5.11ct)
14K White Gold Round Diamond Halo Engagement Ring (5.11ct)
14K White Gold Round Diamond Halo Engagement Ring (5.11ct)
14K White Gold Round Diamond Halo Engagement Ring (5.11ct)
14K White Gold Round Diamond Halo Engagement Ring (5.11ct)
14K White Gold Round Diamond Halo Engagement Ring (5.11ct)

14K White Gold Round Diamond Halo Engagement Ring (6.31ctw)

100-03996

FREE SHIPPING OR IN-STORE PICKUP*

14K White Gold Round Diamond Halo Engagement Ring (6.31ctw)

Metal: 14K White Gold 

Center Diamond: 5.11ct Round Brilliant, Color: I, Clarity: SI2

Accent Diamonds: 1.20ctw Round Brilliants, Color: G-H, Clarity: VS2-SI1

Sizing Available 

Text us for customization options

18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw)
18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw)
18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw)
18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw)
18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw)
18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw)
18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw)
18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw)
18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw)
18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw)

18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw)

100-04108

FREE SHIPPING OR IN-STORE PICKUP*

18K White Gold Elongated Cushion Cut Diamond Halo Engagement Ring (2.86ctw) 

Metal: 18K White Gold 

Center Diamond: 2.50ct Elongated Cushion Cut, Color: F, Clarity: VS2 

Accent Diamonds: .36ctw Round Brilliants, Color: F-G, Clarity: VS2-SI1

Certification: GIA 

Sizing Available 

18K White Gold Radiant Cut Yellow Diamond Three Stone Ring (5.23ctw)

18K White Gold Radiant Cut Yellow Diamond Three Stone Ring (5.23ctw)

100-04002

FREE SHIPPING OR IN-STORE PICKUP*

18K White Gold Radiant Cut Yellow Diamond Three Stone Ring (5.23ctw)

Metal: 18K White Gold 

Center Diamond: 4.15ct Radiant Cut, Color: Fancy Light Yellow, Clarity: SI1

Accent Diamonds: 1.08ctw Trapezoid Cut, Color: G, Clarity: VS

Certification: GIA #  5172683145

Sizing available

Text us for customization options

14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)
14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)
14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)
14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)
14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)
14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)
14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)
14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)
14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)
14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)

14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)

100-04001

FREE SHIPPING OR IN-STORE PICKUP*

14K Yellow Gold Cushion Cut Engagement Ring (4.81ctw)

Metal: 14K Yellow Gold

Diamonds: 4.66ct Cushion Cut Color: I, Clarity: VS1
.15ctw Round Brilliant Accents Color: G-H, Clarity: SI1

Certificate: IGI

Sizing available

LOOSE DIAMONDS

Certified Lab Diamonds In San Mateo, CA

Shop our extensive collection of loose diamonds to find the perfect diamond shape. All diamonds we sell are GIA and AGS certified and laser inscribed as well as being verified with our state of the art diamond grading equipment.

Each diamond is hand-selected with a focus on quality and attention to detail to ensure maximum brilliance. We look through thousands of diamonds to find just a few worthy of our clients– by the time it’s reached you it has already been pre-selected.

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Looking For Lab Diamonds In Santa Clara?

Our top priority is our customer, so if you ever have a concern, question or comment please contact us and we will be more than happy to assist you to answer all your questions. We’ve helped thousands of shoppers just like you, and they love every minute of it.

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