Skip to main contentSkip to footer
  • My WishlistToggle My Wish List
  • Call Us: (707) 763-6053
  • Send Us a Message
  • Visit Us in Petaluma, CA
Hollingsworth Jewelers Gallery logo
  • Bridal
    Engagement Rings
    Diamond Engagement RingsLab Created Engageent RingsEngagement Ring SettingsEngagement Ring & Band Sets
    Wedding Bands
    Eterntiy BandsAnniversary RingsWomen's Wedding BandsMen's Wedding Bands
    Custom Jewelry
    Start from ScratchEngagement Ring BuilderWedding Band BuilderMake an Appointment
    Education
    The 4Cs of DiamondsChoosing the Right SettingWedding Band BuilderLab Grown Diamond Education
    Menu image
    Menu image
  • Custom
    Our Custom Process
    Our Custom Gallery
    Make an Appointment
    Engagement Ring Builder
    Wedding Band Builder
    Personalized Jewelry
    Menu image
    Menu image
  • Fine Jewelry
    Shop by Category
    EarringsNecklaces & PendantsRingsBraceletsChainsCharmsEstate JewelryMen's Jewelry
    Ear Piercing
    Permanent Jewelry
    Diamond Jewelry
    Diamond StudsEarringsNecklaces & PendantsRingsBracelets
    Lab Created Jewelry
    StudsEarringsNecklaces & PendantsRingsBracelets
    Colored Stone Jewelry
    Birthstone JewelryEarringsNecklaces & PendantsRingsBracelets
    Pearl Jewelry
    EarringsNecklaces & PendantsRingsBraceletsSets
    Precious Metal Jewelry
    EarringsNecklaces & PendantsRingsBracelets
    Silver Jewelry
    EarringsNecklaces & PendantsRingsBracelets
    Children's Jewelry
  • Watches
  • Services
    Cleaning & Inspection
    Custom Jewelry
    Ear Piercing
    Financing Options
    Jewelry Appraisals
    Jewelry Repairs
    Permanent Jewelry
    Rhodium Plating
    Ring Resizing
    Tip & Prong Repair
    Watch Batteries
    Watch Repairs
    Menu image
  • Collections
    Aiya Designs
    AVA Couture
    Brevani
    Bulova
    Carla/Nancy B
    Costar
    CrownRing
    David Kord
    Doves Jewelry
    Elma-Gil Bridal
    GelinAbaci
    iDD
    Isabel Collection
    Jennifer Dawes
    Keith Jack
    Kiddie Kraft
    Kimberly Collins
    Leslie's
    Makur
    Midas
    Ostbye
    Parle
    Rembrandt Charms
    SDC Collection
    Speidel
    Stanton Color
    Superfit
    With You Lockets
    Allison Kaufman
    Ashi
    Barkevs
    Frederic Duclos
    Imperial Pearls
    Stuller
  • Our Store
    Our Story
    Our Reviews
    News & Events
    Create a Wishlist
    Education
    Make an Appointment
    Menu image
    Menu image
  • My WishlistToggle My Wish List
  • Call Us: (707) 763-6053
  • Send Us a Message
  • Visit Us in Petaluma, CA
Hollingsworth Jewelers Gallery logo
Log In My Cart
  • Petaluma, CA
  • Toggle Search Menu
  • Toggle My Account Menu
    Login
    Forgot Password?

    Don’t have an account? Sign up now

  • Toggle My Wishlist
  • Toggle Shopping Cart Menu
Hollingsworth Jewelers Gallery Petaluma, CA

Lab-Grown Diamonds

Lab-grown diamonds are chemically, optically, and physically identical to naturally occurring diamonds and the hardest of all gemstones. We love using lab-created diamonds in engagement rings and tennis bracelets or other jewellery that sees heavy use since they retain their brilliance, fire and scintillation better than other gemstones. Colored gemstones, such as rubies, sapphires, and emeralds, aren’t as hard as diamonds, which are a 10 on the Mohs hardness scale. Diamonds can be worn for a lifetime and maintain their brilliance throughout. If you’re looking for a lasting gemstone choice for yourself or a loved one, created diamonds are one of your best options.

Shop Lab Grown Diamonds
Hollingsworth Jewelers Gallery Petaluma, CA

We hold all of our created diamonds to the same standards as our mined diamonds, though you may find that the price comparison differs between the two. Labs have refined their processes to create higher-quality diamonds while keeping prices lower than natural diamonds. You can also find created colored diamonds in hues of yellow, blue, and pink in addition to clear.

Using lab-grown diamonds in engagement rings is a very popular recent trend for a variety of reasons. The cost and increased options at affordable prices makes them a perfect option if you’re looking to tie the knot or find the perfect gift. The hardness of a diamond cannot be matched by moissanite, cubic zirconia, or any other diamond substitutes!

Grown Sustainably

MINED
DIAMONDS
GROWN
DIAMONDS

1000s of acres of soil is moved while mining diamonds

No soil movement

High air pollution

Negligible air pollution

Gallons of water used

Water usage is lower by a factor of 7

High risk work environment

High employee safety standards

Our Process

1SELECT DIAMOND SEED

Choose the best quality diamond seed. The diamond seed is placed on a metal disk.

2GROW THE DIAMOND

The diamond seed is placed into a specialized chamber. The diamond seed starts to grow.

3CUT THE DIAMOND

After 10-12 weeks, a diamond is created. The diamond is then roughly cut using a laser.

4POLISH THE DIAMOND

Diamonds are faceted into desired shapes by skilled diamond cutters using the same tools and techniques that are used for mined diamonds.

Shop Lab Grown Diamonds
Commonly Asked Questions We get a lot of questions about created diamonds. Here are answers to the most commonly asked questions: Hollingsworth Jewelers Gallery Petaluma, CA

Commonly Asked Questions

We get a lot of questions about created diamonds. Here are answers to the most commonly asked questions:

Are lab-grown diamonds real diamonds?

Yes! Lab-grown gemstones are chemically identical to naturally occurring diamonds. They are graded the same way that natural diamonds are graded, using the 4 C’s (color, cut, clarity, and carat). Gemological labs with high-powered equipment and specially trained gemologists can tell you if you have a created diamond or a naturally occurring one, but to the naked eye and even under standard microscopes, it is nearly impossible to tell the difference.

Are they better than naturally occurring diamonds?

Not necessarily. Man-made gemstones are still subject to many of the same flaws and inclusions that natural gemstones are, and diamonds are no exception.

How are lab-grown diamonds made?

There are two main processes for producing diamonds in a lab. Both are quite technical procedures that require a few weeks to produce results. High Pressure, High Temperature (HPHT) mimics the way diamonds are formed naturally in the earth but speeds up the process exponentially. Chemical Vapor Deposition (CVD) creates these precious diamonds by using a chemical reaction to break carbon molecules apart and reform them into diamonds.

Are lab-grown diamonds different from engineered diamonds?

Lab-grown diamonds can go by many different names: engineered diamonds, created diamonds, cultured diamonds, and man-made diamonds all refer to the same process of creating a diamond without mining processes. However, if you see the terms “artificial” or “synthetic” when referring to a gemstone, it might not be a diamond at all. Cubic Zirconia, or CZ, are man-made diamond look-alikes that do not have the same chemical structure as a diamond. Always ask your jeweller for specifics when purchasing fine jewelry to ensure you understand the type of product you’re looking at!

If you’re interested in learning more about lab-grown diamonds, Grogan Jewelers can assist you. Visit us at any of our three locations today, or create an appointment to go over your diamond options.

Hollingsworth Jewelers Gallery
151 Petaluma Blvd. S.
Suite 107
Petaluma, CA 94952
(707) 763-6053
Store Information
Hours
Monday:
Closed
Tue-Sat:Tuesday - Saturday:
10:00am - 4:00pm
Sunday:
Closed
Hollingsworth Jewelers Gallery - Back to homepage
  • Store Services
  • Start a Project
  • Make an Appointment
  • Return Policy
  • Privacy Policy
  • Contact Us
  • Return Policy
  • Privacy Policy
  • Terms & Conditions
  • Accessibility Statement

© 2026 Hollingsworth Jewelers Gallery. All Rights Reserved.

Powered by: Punchmark

My Bag
Shopping cart contents
Loading

Learn how we use cookies in our Privacy Policy or manage cookie preferences.