ZKZ Jewelry Is A Leading Lab Grown Diamond And Custom Jewelry Manufacturer

18K Lab Diamond Ring 2.5ct Princess luxurious engagement custom ring with IGI certification 1

18K Lab Diamond Ring 2.5ct Princess luxurious engagement custom ring with IGI certification 2

18K Lab Diamond Ring 2.5ct Princess luxurious engagement custom ring with IGI certification

Minimum Order Quantity:

Certification:

IGI Certification

Brand Name:

ZKZ jewelry

Place of Origin:

China

Inquiry

Write a Review

Style

customized

+86 18377480198

Side Stones

1.8ct

Diamond Shape

princess

Metal

18K white gold

Diamond Type

CVD

Diamond Clarity

Diamond Color

Carat Weight

2.5ct

IGI-Certified Bespoke Princess-Cut Luxury

This 18K gold engagement ring centers a 2.5ct princess-cut lab diamond, delivering striking sparkle and a modern yet timeless silhouette for everyday wear or special occasions. IGI certification provides precisely graded quality while customizable sizing and engraving options let you create a personal, perfect fit. It arrives in a luxury gift box with secure packaging and optional care and warranty support, giving you confidence in the ring’s craftsmanship and lab-grown, conflict-free origins.

Custom 2

Crafted in 18K gold, this custom engagement ring centers a certified 2.5 ct princess-cut lab-grown diamond (IGI) for measurable quality and refined luxury. As an ethically produced, cost-efficient alternative to mined stones, it delivers exceptional brilliance and visual impact while serving as a lasting emblem of commitment. A precision setting and thoughtfully proportioned band provide secure wear, optimized light return and comfortable everyday fit, with personalization options that tailor the ring’s structural details to individual taste.

18K IGI-Certified 2

This elegant engagement ring is crafted in 18K gold and showcases a brilliant 2.5 ct princess-cut lab-grown diamond. The custom design combines luxurious detailing with a secure, refined setting for everyday wear. The center stone comes with IGI certification, verifying its quality and ethical origin.

◎ product nicety 1

◎ product nicety 2

◎ product nicety 3

Custom IGI Certified Brilliance

Crafted by a boutique jewelry atelier, this 18K engagement ring centers a 2.5ct IGI-certified princess-cut lab diamond that blends contemporary sustainability with timeless luxury. Precision setting and custom design options deliver exceptional light performance, secure wear, and a tailored fit for engagement moments, while lab-grown provenance reduces environmental and ethical concerns compared with mined stones. Key features and advantages include the IGI-certified 2.5ct princess-cut lab diamond, solid 18K gold band, bespoke sizing and engraving, superior brilliance at a more accessible price point, and dedicated aftercare for lasting value.

Application scenario

This 18K 2.5ct princess-cut lab diamond ring with IGI certification is perfect for sealing an engagement. Its custom, luxurious design suits weddings, anniversary gifts, and milestone celebrations. Certified quality ensures confidence and makes it a lasting heirloom for formal events or daily wear.

◎ Proposal Night Statement

◎ Anniversary Vow Renewal

◎ Gala Heirloom Statement

FAQ

Is the 18K lab diamond 2.5ct princess ring suitable for everyday wear?

Yes — lab-grown diamonds have the same physical properties as mined diamonds and the 18K gold setting is durable, so the ring can be worn daily. However, remove it for heavy manual work, contact sports, gardening, or when using harsh chemicals (chlorine, bleach). For long-term daily wear, have the setting inspected every 6–12 months to ensure prongs remain secure.

How should I clean and maintain this custom princess-cut ring?

Clean gently with warm water, mild dish soap, and a soft toothbrush; rinse and dry with a soft cloth. Avoid exposing the gold to strong chemicals. Ultrasonic cleaners are usually safe for diamonds but can loosen settings or harm side stones—check with your jeweler first. Store separately in a soft pouch or compartment to avoid scratching.

Can this ring be resized or further customized after purchase?

Most 18K gold rings can be resized, engraved, or redesigned (e.g., change shank style, add side stones), but the feasibility depends on the ring’s design and any side-stone settings. Resizing may be limited for intricate or fully-set bands. For custom changes or resizing, consult the jeweler who made the ring — they can advise on options, cost, and turnaround time.

What does IGI certification mean and how should I use it?

IGI (International Gemological Institute) certification provides an independent report of the diamond’s attributes (carat weight, cut, color, clarity, and whether it’s lab-grown). Keep the certificate with your purchase documents — it’s essential for insurance, resale, and verification. You can verify the report online using the IGI report number or ask your jeweler to confirm its authenticity.

Is a 2.5ct princess-cut lab diamond a good choice for an engagement ring and pairing with a wedding band?

Absolutely — a 2.5ct princess cut is a striking engagement center that pairs well with many band styles. For pairing, consider complementary options like a straight or contoured wedding band, or a band with matching side stones. If you plan a low-profile wedding band, ensure the engagement setting’s prong height and under-gallery allow a snug fit.

Are princess-cut diamonds and their settings durable enough for someone with an active lifestyle?

The diamond itself is highly durable, but princess cuts have sharp corners that are more vulnerable to chipping if not protected. Settings that include corner prongs, a bezel edge, or a protective halo are recommended for active wearers. If you lead a very active lifestyle, consider a setting with stronger corner protection or remove the ring during high-impact activities. Regular prong checks reduce risk of stone loss.

Get in touch with us

just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs