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Platinum 3mm Half Round Wedding Band, Size 4–12

Stock Number: SJQG-PHR030-4
Sale price  $ 491.13 Regular price  $ 916.47
Size: 4
Product subtotal: $ 491.13
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What's In Your Box
  • Presented in a jewelry box suited to the piece
  • Each piece is stamped with the metal type for easy identification and authenticity
  • IGI or GIA grading report included for diamond stones 0.50 carats and above
  • Manufacturer quality statement for accent diamond pieces confirming stone specifications
  • Care card with cleaning and storage instructions
  • Gift wrapping available for an additional fee — select at checkout
Product Details & Specifications

Exact specifications vary by item. Key details including metal type, stone weight, dimensions, and finish are listed in the product description above.

  • All metals are stamped with their type (e.g. 14K, 925, PT950) directly on the piece
  • Diamonds are conflict-free; lab-grown diamonds graded by IGI or GIA
  • Colored gemstones are ethically sourced from suppliers with transparent supply chains
  • All stone details including type, weight, cut, color, and clarity are listed per product

Contact us at info@sophiajewelers.com if you need specifications not listed in the product description.

Shipping & Delivery
  • Free standard shipping on US orders of $99 or more
  • Orders ship within 2–3 business days
  • Expedited USPS Priority Mail and UPS options available at checkout
  • Rates and delivery estimates are calculated at checkout before you pay
  • All jewelry ships in insured, tamper-evident packaging
  • Tracking number emailed as soon as your order ships
Returns & Exchanges
  • 30-day returns on all unworn, unaltered items in original packaging
  • Return shipping is the customer's responsibility unless the item arrived damaged or we made an error
  • Refunds processed within 3-5 business days of receiving the return
  • Custom-engraved and custom-sized items are not eligible for return
  • Sale items are final sale unless defective

To start a return or exchange, email info@sophiajewelers.com with your order number. Our team will respond within one business day.

Our Guarantee
  • Every piece is stamped with the metal type for verified authenticity
  • All diamonds are conflict-free, certified to the Kimberley Process standard
  • Gemstones are ethically sourced with transparent supply chains
  • Every item inspected for quality before shipment
  • SSL-encrypted checkout — your payment information is never stored
  • We stand behind our craftsmanship — contact us if anything is not right
Platinum 3mm Half Round Wedding Band, Size 4–12
Regular price $ 491.13
Regular price $ 916.47 Sale price $ 491.13
Size: 4
Platinum 3mm Half Round Wedding Band, Size 4–12 - Sophia Jewelers
Platinum 3mm Half Round Wedding Band, Size 4–12
Sale price  $ 491.13 Regular price  $ 916.47

A platinum 3mm half-round wedding band. The gently domed exterior and flat interior sit naturally against the finger with minimal rotation. Solid platinum, polished, available in sizes 4 through 11.5 in full and half sizes.

The Details

  • Metal: Platinum (950)
  • Finish: Polished
  • Band Width: 3 mm
  • Ring Fit: Standard Fit
  • Available Sizes: Sizes 4 through 11.5 in full and half sizes

Why You'll Love It

  • Solid Platinum (950) - Platinum is naturally white, hypoallergenic, and denser than gold. It holds its finish over decades without the re-plating required by white gold, and never fades or discolors.
  • Half-Round Profile - The domed exterior tapers cleanly to the edges, sitting naturally against the finger with minimal rotation and maximum comfort.
  • Polished Finish - A mirror-bright polish that holds its character over time and can be refreshed by any jeweler if surface wear develops.

Wear It For

A wedding band, anniversary ring, or quality everyday piece. The clean, unadorned form works equally well for formal occasions and daily wear without adaptation.

Care and Keeping

Platinum is naturally tarnish-resistant and requires minimal maintenance. Clean with warm water and mild soap using a soft brush. Buff lightly with a soft cloth to restore shine. Platinum develops a natural patina over time that many wearers prefer - a jeweler can re-polish if you prefer the original bright finish.

Identification
SKUSJQG-PHR030-4
UPC / GTIN886774274058
MPNPHR030-4
BrandSophia Jewelers
Product TypeRings
Material & Metal
Metal TypePlatinum
Metal Purity / KaratPlatinum
Metal ColorWhite
FinishPolished
ManufacturingCasted
ConstructionSolid
Design & Style
Ring TypeWedding Bands
Ring FitStandard
Ring StyleWedding Band
Dimensions
Band Width3 mm
Weight3.54 g
Occasion & Audience
OccasionWedding
Origin & Compliance
Country of OriginUNITED STATES
SizeableYes
CA Prop 65: ChemicalsNo
CA Prop 65: CarcinogensNo
Choking HazardNo Warning Applicable
Dangerous GoodsNo

Precious Metals at Sophia Jewelers

Every piece is crafted from certified precious metals selected for lasting brilliance and skin-safe wear.

14k Gold (Most Popular)

58.3% pure gold. The ideal balance of durability and color richness. Available in yellow gold, white gold, and rose gold. The standard choice for fine jewelry and everyday wear.

18k Gold (Premium)

75% pure gold. Richer in color, slightly softer than 14k. Preferred for statement and heirloom pieces where purity matters most.

10k Gold (Everyday Value)

41.7% pure gold. The most durable gold alloy — ideal for active wearers. Stamped 417 on the piece.

Sterling Silver

92.5% pure silver, stamped 925. Cool-toned and versatile. Best for occasional wear; silver develops a natural patina over time.

Platinum

Naturally white, hypoallergenic, and the most durable precious metal. Recommended for those with nickel sensitivities.

Titanium & Stainless Steel

Lightweight, hypoallergenic, and virtually maintenance-free. Excellent for everyday jewelry and sensitive skin.

Lab-Grown Diamonds

Lab-grown diamonds are physically, chemically, and optically identical to mined diamonds. Same carbon crystal structure, same hardness (10 on the Mohs scale), same brilliance. The difference is origin and price: created in a controlled environment, lab-grown diamonds are typically 50-70% less expensive than comparable mined stones, meaning you get a larger, higher-quality diamond for your budget.

All Sophia Jewelers lab-grown diamonds are conflict-free by definition and independently graded by IGI or GIA using the same 4C criteria applied to mined diamonds: cut, color, clarity, and carat weight.

How to Care for Your Jewelry

Fine jewelry deserves thoughtful care. These guidelines will keep your pieces looking luminous for years.

Daily Wear

  • Remove jewelry before swimming, showering, or using cleaning products
  • Apply lotion, perfume, and hairspray before putting on your jewelry — chemicals can dull metal and damage stones
  • Avoid wearing jewelry during gym workouts or high-contact activities
  • Put jewelry on last when getting dressed — last on, first off

Cleaning at Home

Mix a few drops of mild dish soap with warm water. Soak for 15-20 minutes, then gently scrub with a soft toothbrush. Rinse thoroughly and dry with a lint-free cloth. This method is safe for gold, platinum, and most gemstones. Avoid ultrasonic cleaners for pearls, opals, and emeralds.

Storage

Store each piece separately in a soft pouch or compartmentalized jewelry box to prevent scratching. Keep chains flat or hung to avoid tangling. Store silver in anti-tarnish pouches to slow oxidation.

Professional Care

Have precious stone jewelry professionally cleaned and inspected once a year to check prong integrity, stone security, and clasp function. Most jewelers offer this service free of charge.

Shipping

Free standard shipping on all orders over $99. Orders ship within 2–3 business days in insured packaging.

  • Standard Shipping: Free on orders over $99 (5-7 business days)
  • Expedited Shipping: 2-3 business days (additional fee at checkout)
  • Overnight Shipping: Next business day (available for select items)

A tracking number is emailed as soon as your order ships.

Returns and Exchanges

We offer a 30-day return policy on all unworn, unaltered items in original condition with original packaging. Custom-engraved and custom-sized items are not eligible for return.

To begin a return or exchange, email info@sophiajewelers.com with your order number. Our team responds within one business day.

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What Our Customers Are Saying

Every review is from a verified purchase. Real people, real stories, real Sophia Jewelers.

  • Free Shipping

    On all orders over $99

  • 30-Day Returns

    Hassle-free exchanges

  • Certified Quality

    Authenticity guaranteed

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    SSL encrypted payments

Mens Platinum Wedding Rings, answered

Straight answers about mens platinum wedding rings. See all Mens Platinum Wedding Rings

Free Shipping
Orders Over $99
Exchanges
30 Days, Including Ring Size

Returns & exchangesRing size guideAsk our jewelers

How do half round and comfort-fit platinum bands differ?

Half round is curved outside; comfort-fit is curved inside too. A half round band has a domed outer surface, while comfort-fit also rounds the inner edge so it slides over the knuckle more easily. Many bands on this page combine both, so check the profile in the title.

What does 950 platinum mean on these wedding rings?

It means the metal is 95% pure platinum. The remaining 5% is typically other metals in the platinum family that help the ring hold its shape. Platinum has a naturally white finish, so it does not need plating to keep its color.

How wide should a men's platinum wedding band be?

Most people choose between 4mm and 8mm. Widths on this page run from slim to wide. A 6mm band is a common middle choice, while larger hands often suit 8mm. If you are between sizes, check our ring size chart since wider bands can fit snugly.

How do I care for a platinum wedding band?

Clean it with warm water, mild soap and a soft brush. Rinse well and dry with a soft cloth. Polished platinum can pick up fine surface marks over time, and diamond channel styles should be checked now and then so the stones stay snug. See our jewelry care tips.

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