1.5 Carat Heart Lab-Grown Diamond Halo Engagement Ring, 18K White Gold
Product code: NCH-17840
Material
Ring size (Vietnamese sizing)
Not sure of your size? Order anyway — we will help you measure when we contact you to confirm. Free lifetime resizing.
Quantity
An 18K white gold engagement ring with a 1.5 carat heart-shaped lab-grown diamond held by two prongs at the lobes, a halo of 17 small stones following the heart outline, and 10 more stones along the shoulders before a plain lower band.
Jewelry details
The heart is the hardest diamond shape to cut, and the reason is simple: people notice immediately when it isn't balanced. One lobe fuller than the other, a cleft slightly off — the eye catches it even without knowing what to call it.
This engagement ring places a 1.5 carat heart-shaped lab-grown diamond in the center, surrounded by a halo of stones that also follows the exact heart shape, with two rows of five stones leading in along the shoulders.
The halo isn't round but heart-shaped too — dipping into the cleft between the lobes and narrowing at the point. That's the most labor-intensive part of the whole ring.
The design: a heart within a heart
The center stone sits with its cleft pointing up and its tip pointing toward the wrist. The two full lobes lie across the band, and the cleft between them is a sharp V rather than a soft dip — keeping that V is what makes a true heart shape.
The center stone uses just two round prongs at the lobes; the tip has no prong of its own but sits snugly within the halo. This leaves both curves of the lobes fully visible, while the tip — the thinnest and most chip-prone part of this cut — is protected by the surrounding stones and metal.
Seventeen small stones form a halo hugging the outline of the center stone, including the dip at the cleft and the point at the tip. Each stone has to be set at its own angle to follow the curve — no ready-made template like a round halo. From the halo, ten more stones divide evenly along both shoulders and then stop; the lower half of the band is plain.
Three things to look at when you hold it
1Look straight down and fold it in half with your eyes: the two lobes must be equally full, the cleft right on the axis. This is the first thing every customer notices if it's wrong.
2Look closely at the halo at its two hardest spots — the bottom of the cleft and the tip. The stones must hug the curve with no gaps and none sticking out.
3Look from the side: the tip of the center stone must sit inside the frame, not poke out past the edge of the halo. If it pokes out, it's the first thing to take a knock.
The trade-offs, plainly
The heart is a demanding cut. The stone has to balance both shape and light, so the proportion of good stones from all those cut is lower than for rounds. That's why a beautiful heart isn't as cheap as people expect when comparing carats.
The tip is still a weak point. Even protected by the halo, a hard knock on a table edge or door handle is still a risk. Take the ring off for heavy work.
There's a dark band across it. Like ovals and marquises, a heart often shows a faint dark streak across the middle from some angles. That's a trait of elongated cuts, not a flaw in the stone.
The head is fairly large. Including the halo, the head is more than a centimetre wide. On a small finger it will look full; try it on before deciding.
The halo around the center stone is hard to alter. Each stone is set at its own angle, so if you later swap the center stone for a different size, the whole frame almost has to be remade.
Metal: 18K white gold and lab-grown diamonds
18K gold has a high gold content, so its white is brighter and richer, never grey. On this design that matters: the center stone and halo need to read as one continuous mass, and discolored metal makes the outline stand out. In return, 18K is a little softer than 14K, and with nearly seventy small prong tips holding stones, regular prong checks are a must rather than optional. Over time the color may warm slightly; a re-polish restores it.
Every stone on the ring is a lab-grown diamond: the same carbon composition, hardness and light dispersion as mined diamonds, different in how they were formed. For a heart of this size, the price gap between lab-grown and mined is huge — which is why many people can choose a much larger stone on the same budget.
Who it suits, sizing and keeping it bright
This is a design for someone who loves clear romance — the heart isn't a discreet cut; it says exactly what it means. It's ideal as an engagement or anniversary ring. With its large, raised head, it's not a ring for manual work, but at parties and in photos it's stunning.
On sizing: measure your finger in the afternoon when your hand is warm. The lower half of the band has no stones, so it can still be enlarged or reduced later; the stone-set shoulders can't be touched.
Keeping it bright is simple: take the ring off when applying lotion, washing dishes or at the beach; each week, soak it in warm water with a little mild soap for a few minutes and brush gently with a soft brush, paying attention to the underside of the center stone and the gaps in the halo, because dust collects there rather than on top. Every six months to a year, bring it in for a prong check and re-polish.
Engagement ring advice at Thảo Linh Jewelry
Visit the store to see the heart under real lighting and check the balance of the two lobes — this cut has to be seen in person to be judged. Our workshop setters will advise on center stone size, finger measurement and making time.
Thảo Linh Jewelry — 120 Pham Thi Tanh, Chanh Hung Ward, Ho Chi Minh City · Hotline 0945 006 001
