Ellie Princess Cut Lab-Grown Blue Diamond Engagement Ring in 14K White Gold (IGI Certified)

$3,345.00

Unit price: per

Size: 3

Ring Size Chart

Find your ring size

Print at 100% / Actual Size — turn off "fit to page" or scaling.
Check the printed ruler measures exactly 80 mm.

Method A — Measure a ring

Lay a ring you own over the circles. The matching circle is your size.

Method B — Finger strip

Cut out the strip, wrap it around your finger, thread the end through the slit, and read your size.

Open the printable sizer (PDF)

1. Calibrate your screen — pick a reference object, hold it against the outline, and drag until the widths match exactly. On a phone, a coin is easiest — a card is often wider than the screen.

Bank card — hold vertically

2. Match a ring you own — drag until the circle fits just inside one of your rings.

US 6 · 16.5 mm · UK L½ · EU 52

This on-screen tool is a close guide, not a guaranteed exact fit. For certainty, order a ring sizer.

US	Diameter	Circumf.	UK/AU/IE	EU

UK, Australia & Ireland share the letter system. European sizes are approximate conversions.

Metal: 14K White Gold

Quantity

Shipping calculated at checkout.

Size Chart

Find your ring size

Print at 100% / Actual Size — turn off "fit to page" or scaling.
Check the printed ruler measures exactly 80 mm.

Method A — Measure a ring

Lay a ring you own over the circles. The matching circle is your size.

Method B — Finger strip

Cut out the strip, wrap it around your finger, thread the end through the slit, and read your size.

Open the printable sizer (PDF)

1. Calibrate your screen — pick a reference object, hold it against the outline, and drag until the widths match exactly. On a phone, a coin is easiest — a card is often wider than the screen.

Bank card — hold vertically

2. Match a ring you own — drag until the circle fits just inside one of your rings.

US 6 · 16.5 mm · UK L½ · EU 52

This on-screen tool is a close guide, not a guaranteed exact fit. For certainty, order a ring sizer.

US	Diameter	Circumf.	UK/AU/IE	EU

UK, Australia & Ireland share the letter system. European sizes are approximate conversions.

MADE TO ORDER: HANDCRAFTED IN 3–6 WEEKS

Questions about metal, sizing or timing? Talk to our team.

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Product Description

Most diamonds whisper; a blue one speaks. This Ellie is a blue lab grown diamond ring in its most romantic form — an IGI certified princess cut blue diamond, approximately 6 × 6 mm and 1.2 carats, set in solid white gold or platinum and brightened by a trail of colorless lab-grown diamond accents.

IGI Certified Blue Lab Diamond 6 × 6 mm Princess Cut Colorless Diamond Accents White Gold or Platinum Complimentary Engraving Free US Shipping

A Diamond in Blue

Blue has long been the color of loyalty, strength, and everlasting love — and carried by a real diamond, that symbolism gets diamond permanence behind it. The vivid hue is created during the stone’s growth, so it is part of the crystal itself: stable, permanent, and impossible to wear away. Fancy-color diamonds are among the rarest stones in the mined world; growing them in the lab puts the look within reach without touching the rarity math. See where blue diamonds sit in the wider spectrum in our complete guide to blue gemstones.

Princess Cut, Framed in Colorless Light

The princess cut’s square outline and chevron faceting give a colored diamond structure — every facet flashes a slightly different depth of blue as the hand moves. Around the setting, colorless lab-grown diamond accents do the opposite job: their white sparkle frames the blue center and makes the hue read deeper by contrast. The build stays deliberately delicate, with a slim 1.7 mm average band width that keeps all the visual weight on the stones. Compare the geometry across our princess cut engagement rings.

White Gold or Platinum — Four Ways to Wear It

Cool metal keeps the palette icy, and every option is solid precious metal through and through. Choose from the drop-down:

10K white gold — the hardest and most affordable of the gold options.
14K white gold — our most popular all-rounder for strength, comfort, and shine.
18K white gold — the richest gold content, for an heirloom-quality feel.
Platinum — naturally white, the densest and most substantial choice, and hypoallergenic for sensitive skin.

Torn between the last two? Our platinum vs gold guide compares weight, wear, and value, and the karat comparison guide covers the three golds in detail.

Certified, Serialized, Conflict-Free

The center stone is an IGI certified lab-grown blue diamond — a real diamond at 10 on the Mohs scale, grown above ground rather than mined, which makes it fully traceable and conflict-free. Each ring includes a certificate of authenticity and a unique serial number confirming quality and origin. Curious about the science? Read how lab-grown diamonds are made, and see how they hold up as a purchase in do lab-grown diamonds hold value. Then browse more lab-grown diamond engagement rings or the full diamond jewelry collection.

Specifications

Center stone Blue lab-grown diamond, IGI certified
Cut Princess
Stone size Approx. 6.0 × 6.0 mm
Carat weight Approx. 1.2 ct (may vary slightly)
Hardness 10 Mohs
Accent stones Colorless lab-grown diamonds
Band width 1.7 mm average
Metal Solid 10K / 14K / 18K white gold, or platinum
Documentation Certificate of authenticity, unique serial number
Engraving Complimentary, up to 16 characters
Production Made to order — please allow 3–5 weeks
Includes Luxury ring box, free US shipping

Sizing & Care

Pick your size and metal from the drop-down menus; larger and smaller sizes are available on request. Our ring size guide shows how to measure at home — and note that sizing can vary up to half a size between jewelers, so measure before you order.

Diamond’s hardness makes upkeep effortless: warm water, a drop of mild dish soap, and a soft brush around the setting, then a rinse and a wipe with a lint-free cloth. The blue is part of the crystal, so no amount of cleaning or daylight will dull it.

Frequently Asked Questions

Is a blue lab-grown diamond a real diamond?

Yes. It is pure crystallized carbon, identical in structure, hardness, and brilliance to a mined diamond — 10 on the Mohs scale. The only differences are its above-ground origin and its rare blue color.

Where does the blue color come from?

The color is created during the diamond’s growth process, so it is part of the crystal itself rather than a surface treatment. It is permanent and stable — cleaning, sunlight, and daily wear cannot dull it.

What does blue symbolize in an engagement ring?

Blue has long stood for loyalty, strength, and everlasting love — fitting sentiments to carry in a stone that is itself the hardest material found in nature.

Is this diamond certified?

Yes. The blue center diamond is IGI certified, and every ring ships with a certificate of authenticity and a unique serial number documenting its quality and origin.

How big is the center stone?

The princess-cut blue diamond measures approximately 6.0 x 6.0 mm and weighs about 1.2 carats (weight may vary slightly) — substantial presence on the slim 1.7 mm band.

What are the accent stones?

Colorless lab-grown diamonds. Their white sparkle frames the blue center and deepens its color by contrast.

Should I choose white gold or platinum?

White gold offers three karat tiers at friendlier prices; 10K is the hardest, 18K the richest. Platinum is naturally white, noticeably heavier, and hypoallergenic — ideal for sensitive skin. All four options are solid precious metal.

Is platinum worth the upgrade?

If you love a substantial feel or have metal sensitivities, yes — platinum is denser than gold and naturally white, so its color never needs maintenance. Our platinum vs gold guide covers the trade-offs in full.

Is this ring ethical?

Yes. Both the blue center diamond and the colorless accents are lab-grown, making the ring fully traceable and conflict-free from crystal to setting.

Can the ring be engraved?

Yes — complimentary engraving of up to 16 characters is included. Different gemstone options are also available on request; contact us for a custom quote.

How long does it take to make?

Each ring is made to order — please allow 3-5 weeks for handcrafting before shipment. Requested modifications may adjust the timeline, and an optional appraisal can be selected from the drop-down.

How do I find my size?

Use our ring size guide to measure at home. Half and quarter sizes are in the drop-down, larger and smaller sizes are available on request, and sizing can vary up to half a size between jewelers.

How do I clean a blue diamond ring?

Exactly like a white diamond: warm water, mild dish soap, and a soft brush, then rinse and dry with a lint-free cloth. The color is inside the crystal, so cleaning cannot affect it.

Shipping & Delivery

Engraving

We've got you covered

Free insured shipping

Lifetime warranty

14-day returns

Free first resizing

Complete the set

Solid Gold Wedding Bands

Contoured to sit flush against this setting — in matching 10K, 14K and 18K gold. Prefer the cooler white of platinum? We make those too.

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The Aquamarise Difference

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Solid gold and platinum, never plated

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Frequently Asked Questions

Side by side and brand new, the two look almost identical. The difference shows up over years of wear.

White gold is a gold alloy finished with rhodium for brightness. It sits lighter on the hand and costs less, and the rhodium finish is refreshed every few years to keep it crisp.

Platinum is white all the way through, so there is no finish to renew. It is around 40% denser — noticeably weightier — and over time develops a soft matte patina that many people prefer. It can be polished back to a high shine whenever you like.

Our Platinum vs Gold guide compares durability, cost and upkeep in full.

Nothing on this page is pulled from a shelf. Each solid gold and platinum ring is cast, set and finished for your order, which takes 3 to 6 weeks depending on the design — pavé settings, custom sizing and engraving sit at the longer end. Shipping is added once your ring is finished, and paying for faster shipping speeds up transit only — it does not shorten production. Full timings are on our Shipping & Delivery page.

Use the Size Chart linked beside the Add to Bag button, or our full Ring Size Chart. Because these rings are made to order, we cut your size from the start rather than resizing a stock band — so measure carefully. Your first resizing is free if it is still not right. Most designs can be adjusted, though eternity bands and rings with stones set the whole way around usually cannot.

On most designs, yes — if engraving is available for this ring, a text field appears with the options above. Standard engraving is complimentary: up to 16 characters on women’s rings and 25 on men’s, set in Arial, with a small selection of symbols included. Custom fonts and symbols are $25 and are arranged before you order. See the Engraving page for what is possible. Engraved rings are final sale.

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Ellie Princess Cut Lab-Grown Blue Diamond Engagement Ring in 14K White Gold (IGI Certified)

Product Description

A Diamond in Blue

Princess Cut, Framed in Colorless Light

White Gold or Platinum — Four Ways to Wear It

Certified, Serialized, Conflict-Free

Specifications

Sizing & Care

Frequently Asked Questions

Shipping & Delivery

Engraving

We've got you covered

Solid Gold Wedding Bands

The Aquamarise Difference

Other rings you'll love

Customer Reviews

Recently viewed

Frequently Asked Questions

Availability