Ophelia GIA 1.50 carat diamond 18k yellow gold platinum ring - T&H Exclusive

$ 15,600
A GIA-certified 1.50 carat cushion diamond engagement ring in platinum and 18k yellow gold, its warm center stone framed by bright diamond-set shoulders.
Certificates:
A cushion brilliant cut diamond, weighing 1.50 carats and certified by GIA in I color and SI1 clarity, rises from a platinum basket at the center of this engagement ring, its soft, pillowed outline a gentler silhouette than a sharp-cornered princess or emerald cut. Six round brilliant cut diamonds, weighing 0.06 carat combined in G-H color and VS clarity, are bezel-set into the gallery and shoulders, small bright punctuation that catches the eye without pulling focus from the center stone. Pairing platinum, prized for its strength in holding a large stone securely, with an 18k yellow gold shank is a considered choice, giving the ring a warmer overall glow than an all-white mount would. Weighing 4.20 grams, it carries a reassuring, well-made heft rather than feeling insubstantial. Made new in 2026, this is a straightforward, thoroughly documented engagement ring built around a genuinely sizable certified diamond, the kind of piece that doesn't need an elaborate multi-stone design to make its case. A strong choice for anyone who wants a classic cushion solitaire with real presence and the reassurance of GIA paperwork behind every carat.
Period 21st Century
Metals & Materials 18k Gold, Gold, Platinum, Yellow Gold,
Size 6.25
Style Choice Contemporary
Primary Stone/s
Stone Type Diamond
Stone Cut Brilliant
Carat Weight 1.0 - 2.0 ct
Colour Grade IG
Clarity Grade Slightly Included (SI1)Very Slightly Included (VS1)

7-day, 100% return policy

1-Year service warranty

From delivery or collection, we're happy to give you 7 calendar days to try the jewelry in the comfort of your own home. If you decide to return the jewelry, we also provide the return shipping label & instructions.

We guarantee free worldwide shipping. Our packages are 100% insured for loss, damage, or theft and are shipped via FedEx.

SKU: 37369

Always in style

There’s nothing quite like vintage. Every piece we find has its own past — worn, loved, and passed down through generations. We inspect and select each item with care, preserving its unique charm while ensuring it’s ready for its next chapter with you.

Shop with zero worries

Icon_7dayreturnsTeal.svg

7 day 100% return policy

Icon_FreeShippingTeal.svg

Free shipping & returns

ICON_Heart.svg

1-year service warranty

Icon_ResizingTeal.svg

Free ring sizing

Frequently Asked Questions

Can We help?

If you want to see your piece from every angle or have a question, book a virtual appointment with us — we're here to help.

Good Company

Loved by vintage fans!

Review_HaleyM.jpg
Beyond obsessed

I'll just start by saying that every piece of vintage jewelry in this shop is more beautiful than any other I saw in all of LA. Not only do I absolutely adore my ring, I had an amazing experience here as well. Basically the dream situation for a newly engaged gal! 

Haley M.
Reviews_DanC.jpg
Loved the ring

Love this place. The staff's knowledge and attention to detail was incredibly helpful. 

Dan C.
Reviews_Ashley.jpg
Your Biggest Fans

For the past four years we have only used Trumpet & Horn for fine jewelry purchases. The team at Trumpet & Horn go above and beyond to make sure that each detail is classy and beautiful. I have worn my engagement set every day for nearing four years. 

Ashley H.
Reviews_SarahB.jpg
Positive experience

My fiance and I found the perfect ring at Trumpet & Horn. After not finding anything in stores, we turned to the internet and were glad to find Trumpet & Horn. I absolutely LOVE it.  

Sarah B.

Loyal Customer