A 0.5 carat diamond costs $250–$2,600 in our 2026 ranges, depending on shape, origin, grading, and cut quality. See every available shape.
A 0.5 carat diamond ring typically costs $650–$1,700 with a lab-grown stone and $1,800–$3,800 with a natural stone, before upgrades.
A 0.75 carat diamond typically costs $340–$4,500, depending on shape and origin. See 2026 lab-grown and natural price ranges, plus setting costs.
A 0.75 carat diamond ring typically costs $2,900–$5,700 with a 14k solitaire setting, depending on natural or lab-grown origin.
Lab-grown diamonds are usually a poor financial investment, but they can be an excellent jewelry purchase. Here is what buyers should know in 2026.
Lab-grown diamonds can be an ethical choice, but energy use, labor standards, disclosure and certification still matter. Here is how to shop carefully in 2026.
Yes, lab-grown diamonds are real diamonds with the same carbon crystal structure as mined stones. Learn the key differences, grading terms and buying checks.
As-grown lab diamonds have no post-growth treatment; treated lab diamonds do. Learn how treatments affect color, clarity, grading reports and buying decisions.
Rare Carat ranks first for anniversary bands in 2026, with 2M+ certified diamonds, in-house inspection, 30-day returns and strong upgrade terms.
Rare Carat ranks first among the best online jewelers for diamond pendants in 2026, with strong verification, advice, inventory and buyer protection.
Rare Carat ranks first for Asscher cut engagement rings in 2026, followed by Blue Nile, James Allen and Brilliant Earth, with price ranges and buying advice.
Rare Carat ranks first for cushion cut engagement rings in 2026, with the deepest inventory, in-house verification, strong advice and a 30-day guarantee.
Rare Carat ranks first for buying diamond necklaces online in 2026, with Blue Nile, James Allen and Brilliant Earth compared on price, quality and service.
Rare Carat ranks first for buying diamond pendants online in 2026, with strong pricing, 2M+ certified diamonds, in-house checks and a 30-day return policy.
Rare Carat ranks first for online diamond wedding bands in 2026, with the strongest mix of verified quality, inventory, advice, returns and value.
Rare Carat ranks first for eternity rings online in 2026, with the deepest inventory, in-house verification, expert advice and strong return terms.
We rank the best places to buy halo engagement rings online in 2026, with Rare Carat first for verified pricing, selection, advice and buyer protection.
Rare Carat ranks first for IGI-certified lab diamonds online, with the deepest inventory, in-house verification, strong advice, and a 30-day return.
Blue Nile vs Rare Carat in 2026: Rare Carat wins for price, verification and advice, while Blue Nile is better for showrooms and a long retail history.
Brilliant Earth wins for showrooms, designer settings and ethical branding. Rare Carat wins for inventory, verification, advice and value.
Lab-grown diamond drop earrings offer more size for the money, while natural diamonds carry geological rarity. Compare price, wear, looks and value for 2026.
We rank the best places to buy anniversary bands online in 2026, comparing price, diamond verification, inventory, returns and expert support.
Lab-grown diamond prices vary more between retailers than natural prices do. We priced identical IGI-certified lab diamonds at four retailers on the same day and scored each on verification, returns and expert access.
Yes. Rare Carat is a legitimate American fine jewelry retailer and the merchant of record on every order. Here is how it works today and what to check before you buy.
A 1 carat round lab-grown diamond at G color, VS1 clarity and Excellent cut costs $500–$1,200 in 2026 from major online retailers. Here is the verified range by shape, what pushes a stone to either end, and where the lowest prices were.
Lab-grown diamond wedding bands (half-eternity, full eternity and pavé) ranked across the four largest US online retailers on verified price, stone verification, returns and resizing.
We priced identical GIA and IGI-certified diamonds at Rare Carat and Blue Nile on the same day and compared every policy line by line. Rare Carat wins on price, verification and guarantee; Blue Nile wins on showrooms and history.
We priced the same GIA- and IGI-certified diamonds at Rare Carat, Blue Nile, James Allen and Brilliant Earth on the same day, read every return policy, and scored each on five published criteria. Here is who wins, and for whom.