The short answer
A well cut 1 carat lab-grown diamond with a grading report sells for roughly $700 to $1,500 on its own in 2026. A mined diamond of the same grade costs several times as much.
At ART, an engagement ring in 18k gold starts from $1,100 with a 0.50 carat centre stone. The Classic Solitaire Ring with a 1.00 carat stone costs $1,550.
Rings start from $850, earrings from $650, necklaces from $850 and bracelets from $2,650.
What a lab-grown diamond costs by carat
These are typical retail prices in October 2026 for a loose round lab-grown diamond with an excellent cut, G to H colour, VS clarity and a full report from an independent laboratory. Sellers differ, and prices have fallen year after year, so read them as a range, not a quote.
| Carat | Typical price | About per carat |
|---|---|---|
| 0.50 | $300 to $500 | $600 to $1,000 |
| 1.00 | $700 to $1,500 | $700 to $1,500 |
| 1.50 | $1,200 to $2,500 | $800 to $1,650 |
| 2.00 | $1,700 to $3,500 | $850 to $1,750 |
| 3.00 | $3,500 to $7,000 | $1,150 to $2,350 |
The price per carat rises with size, because large clean crystals take longer to grow. It also jumps at the round numbers. A 0.90 carat stone looks the same on the hand as a 1.00 carat and costs noticeably less.
What changes the price of a diamond
- Carat. Weight changes the price more than anything else.
- Cut. An excellent cut costs a little more and is worth it, because it decides how bright the stone is. See the four Cs.
- Colour and clarity. Each grade up costs more. Beyond G colour and VS clarity, the difference is hard to see without a loupe.
- Shape. A round costs the most per carat, because more of the crystal is cut away to make it. Ovals, cushions and emerald cuts usually cost less for the same weight. See diamond shapes.
- The report. A stone sold with a full report from an independent laboratory such as IGI or GIA costs a little more. It is also the only way to know exactly what you are buying.
What the gold and the setting add
18k gold is 75 percent pure gold. With gold at about $4,060 an ounce in October 2026, one gram of 18k gold holds about $98 of gold.
A plain solitaire uses about 3 to 4 grams of 18k gold. A halo ring with a pavé band uses 4 to 6. A tennis bracelet uses 10 to 15 grams. That is why a bracelet set only with small diamonds can cost more than a ring with a large one.
On top of the gold come the small diamonds and the hours of setting them one by one. A band set with forty small stones takes far longer to make than a plain one.
The colour of the gold does not change the price at ART. White, yellow and rose 18k gold cost the same. See gold colours and karats.
What ART pieces cost
Every piece is made to order in 18k gold. The price as shown is for the piece as it is pictured and described on its page. Where a smaller centre stone is possible, the price with it is given too.
Engagement Rings
| Piece | Shown | As shown | From |
|---|---|---|---|
| Classic Solitaire Ring | 1.00 ct centre | $1,550 | $1,100 (0.50 ct) |
| Pavé Solitaire Ring | 1.50 ct centre | $2,300 | $1,300 (0.50 ct) |
| Bridal Ring Set | 0.75 ct centre | $2,050 | $1,850 (0.50 ct) |
| Princess Halo Ring | 1.20 ct centre | $2,150 | $1,500 (0.50 ct) |
| Double Halo Ring | 1.00 ct centre | $2,150 | $1,700 (0.50 ct) |
| Crown Halo Ring | 1.50 ct centre | $2,500 | $1,500 (0.50 ct) |
| Halo Eternity Ring | 1.20 ct centre | $2,450 | $1,800 (0.50 ct) |
| Triple Row Halo Ring | 1.00 ct centre | $2,150 | $1,700 (0.50 ct) |
| Three Stone Ring | 1.00 ct centre | $2,200 | $1,750 (0.50 ct) |
| Filigree Solitaire Ring | 1.20 ct centre | $1,850 | $1,200 (0.50 ct) |
| Bezel Dome Ring | 1.00 ct centre | $1,850 | $1,400 (0.50 ct) |
Rings
| Piece | Shown | As shown | From |
|---|---|---|---|
| Diamond Cluster Ring | 2.00 ct total | $1,650 | $1,650 |
| Starburst Ring | 2.50 ct total | $1,950 | $1,950 |
| Flower Ring | 1.80 ct total | $1,750 | $1,750 |
| Chevron Pavé Band | 0.40 ct total | $850 | $850 |
| Wave Band | 0.50 ct total | $900 | $900 |
| Bypass Ring | 0.70 ct total | $1,050 | $1,050 |
| Ribbon Ring | 1.20 ct total | $1,350 | $1,350 |
| Wing Ring | 1.50 ct total | $1,550 | $1,550 |
Earrings
| Piece | Shown | As shown | From |
|---|---|---|---|
| Halo Diamond Studs | 1.00 ct each | $2,200 | $1,300 (0.50 ct each) |
| Hexagon Studs | 0.80 ct pair | $1,050 | $1,050 |
| Bezel Diamond Studs | 0.50 ct each | $1,050 | $650 (0.25 ct each) |
| Laurel Earrings | 3.00 ct pair | $2,450 | $2,450 |
Necklaces
| Piece | Shown | As shown | From |
|---|---|---|---|
| Princess Solitaire Pendant | 1.00 ct | $1,300 | $850 (0.50 ct) |
| Pavé Bar Pendant | 0.30 ct total | $950 | $950 |
| Cushion Halo Pendant | 1.50 ct centre | $2,200 | $1,200 (0.50 ct) |
Bracelets
| Piece | Shown | As shown | From |
|---|---|---|---|
| Diamond Tennis Bracelet | 5.00 ct total | $3,450 | $3,450 |
| Tennis Bracelet Pair | 3.00 ct each | $4,900 | $4,900 |
| Diamond Link Bracelet | 6.00 ct total | $4,450 | $4,450 |
| Diamond Line Bangle | 1.00 ct total | $2,650 | $2,650 |
What a budget reaches
- Under $1,000. The Bezel Diamond Studs from $650, the Princess Solitaire Pendant from $850, the Chevron Pavé Band at $850, the Wave Band at $900 and the Pavé Bar Pendant at $950.
- $1,000 to $2,000. Any engagement ring with a 0.50 carat centre stone, the Classic Solitaire Ring with 1.00 carat at $1,550, most of the rings, from the Bypass Ring at $1,050 to the Starburst Ring at $1,950, and the Hexagon Studs at $1,050.
- $2,000 to $3,000. Most engagement rings with a centre stone of 1.00 to 1.50 carats, the Halo Diamond Studs with 1.00 carat each at $2,200, the Laurel Earrings at $2,450, the Cushion Halo Pendant at $2,200 and the Diamond Line Bangle at $2,650.
- Over $3,000. The Diamond Tennis Bracelet at $3,450, the Diamond Link Bracelet at $4,450 and the Tennis Bracelet Pair at $4,900.
If your budget is fixed, tell us. We will show you what it reaches, and if a smaller stone will look the same on the hand, we will say so.
How a quote works
Prices on this site are in US dollars. They include the gold, every diamond, the making and, for a centre stone, its grading report. Delivery is quoted separately.
Gold and diamond prices move. When you enquire, we confirm the price in writing for the stone, the gold and the size you choose. Nothing is made, and nothing is paid, until you have agreed to it.
