Rose Majester 18K Lab Diamond Solitaire Necklace 0.1-3ct Review
An 18K gold solitaire necklace with one round lab diamond from 0.10ct to 3.00ct, listed as color F or better and clarity VS2 or better, at $99 to $1,359 depending on size and chain. It suits a buyer who wants to choose the stone size and decide on a chain.
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Our verdict
A flexible solitaire for a buyer who wants to pick the stone size between 0.10ct and 3.00ct and choose whether to add a chain, with color F or better and clarity VS2 or better stated. Look elsewhere if you need a stated gold color or an IGI report on a stone under 1ct without paying extra. The main caveat is the wide $99 to $1,359 range, which the listing does not break down by size.
- Best for
- A buyer who wants to choose the size of a round lab diamond and decide whether to add a chain.
- Skip if
- You need a stated gold color or an IGI report included on stones under 1ct.
Why 3.3/5: Neutral on the IGI report, which is optional below 1ct; held back by a thin spec sheet that omits the gold color, made to order status and no independent buyer reviews found for the store.
This necklace hangs a single round lab diamond from an adjustable chain, with the gold given as 18K in the title. The Size option runs from 0.10ct (3mm) to 3.00ct (9.4mm) and prices span $99 to $1,359. The listing calls it a made to order item shown with a 1.0ct center stone, and the six smaller sizes can also be bought without a chain.
Specifications
| Spec | Listing says |
|---|---|
| Diamonds | 1 Lab Diamond |
| Diamond cut | Round |
| Color | F or better |
| Clarity | VS2 or better |
| Chain Thickness | 0.8mm for designs ≤1ct, 1.0mm for 2ct & 3ct designs |
| Chain Length | Adjustable 40cm + 5cm extender (40cm-16inch 45cm-18inch) |
Options and pricing
The Size option lists 0.10ct (3mm), 0.25ct (4mm), 0.50ct (5mm), 0.80ct (6mm), 1.00ct (6.5mm) and 1.30ct (7mm) both with and without a chain, while 2.00ct (8mm) and 3.00ct (9.4mm) appear only with a chain. Prices run from $99 to $1,359, but the listing does not tie each size to a price. Beside the $99 starting price the store displays a crossed-out higher price of $199.99, which comes from the store itself and is not a market price.
How it compares
The 18K Gold Diamond Solitaire Necklace with Fancy Cut Diamond is a close match: it lists From $294.20 against From $99 here, and its title covers 0.25-1ct in fancy cuts where this one covers 0.1-3ct. Among the pendants, the 1ct Oval Diamond Bezel Pendant Only with Floral Halo in 14K Yellow Gold lists $557 for a 1.01ct oval, and the 3ct Round Diamond Classic Single-Bail Pendant Only in Platinum lists $849.20 for a 3.05ct round stone.
Shipping, returns and warranty
Shipping is free worldwide on most orders: made-to-order pieces need 10 to 18 business days before dispatch, then orders of $500 or more travel by DHL, FedEx, UPS or USPS in 3 to 7 business days. The FAQ says 10 to 18 business days when an IGI report is included plus 5 to 15 calendar days of delivery. Duties and taxes are included for most destinations. Returns: 30 days from delivery for eligible items, but custom orders and special orders (changes to an existing design) are final sale, and the page does not say whether an unmodified made-to-order design counts as returnable, so ask before paying; the buyer pays return shipping unless the item is wrong or defective, and an order can be cancelled only within three hours. Warranty: a free lifetime warranty, a one-time free replacement of a diamond up to 0.10 ct on first loss, and a promise to replace a diamond if the same grading laboratory later grades it lower. Checkout runs through PayPal, which also takes cards.
Before you buy
Rose Majester is a young store: its domain was registered in March 2025, and the company says it was founded in 2023 in Changsha, China, with a showroom in Macau. Searches on 19 October 2026 found no buyer reviews on Trustpilot, BBB or Reddit, so its claims have no outside check. Every listing we read shows a crossed-out higher price, and the store's "up to 76% lower than traditional retail" line is its own claim, not a market price. Its pages also disagree: delivery times differ between the shipping page and the FAQ, and the FAQ says every diamond piece over $500 comes with an IGI jewelry report while some listings call the report optional. Ask the store, for example on WhatsApp, to confirm the report, size and resizing before you pay, and keep the PayPal receipt.
What we liked
- Stone sizes come with millimeter measurements, from 0.10ct (3mm) to 3.00ct (9.4mm)
- Color F or better and clarity VS2 or better are stated for the round diamond
- Chain details are given: adjustable 40cm plus a 5cm extender, 0.8mm thick for designs up to 1ct
- Six of the sizes can be bought with or without a chain
- Pendants of 1ct or above come with an IGI certificate, according to the listing
Worth noting
- The listing gives no gold color and no metal line beyond the 18K in the title
- Below 1ct the IGI report is not included by default, and the optional $50 IGI Jewelry Report is not the report for the center diamond
- The listing gives no setting details or pendant dimensions beyond the stone size in millimeters
- The listing does not say which size or chain choice sets each price in the $99 to $1,359 range
Questions before you buy
What diamond is in this 18K necklace?
One round lab diamond, listed as color F or better and clarity VS2 or better. The size runs from 0.10ct (3mm) to 3.00ct (9.4mm).
How long and how thick is the chain?
The listing gives an adjustable 40cm chain with a 5cm extender, noted as 40cm-16inch and 45cm-18inch. Thickness is 0.8mm for designs up to 1ct and 1.0mm for 2ct and 3ct designs.
Is an IGI certificate included at every size?
No. For pendants of 1ct or above the listing says it is. Below 1ct the IGI report is not included by default, and an optional IGI Jewelry Report is +$50.
Can I return a made-to-order piece?
The refunds page gives a 30-day window for eligible items but lists custom orders and special orders (changes to an existing design) as final sale. It does not say whether an unmodified made-to-order design is returnable, so ask first. You pay return shipping unless the item is wrong or defective.
How long does a made-to-order piece take?
The shipping page says 10 to 18 business days before dispatch, then 3 to 7 business days in transit on orders of $500 or more; the FAQ says 10 to 18 business days when an IGI report is included, plus 5 to 15 calendar days of delivery. Shipping is free and duties are included for most destinations.
Does this piece come with an IGI report?
This listing says the IGI report is not included by default and offers an optional IGI Jewelry Report for an extra $50 and about three more business days. The store's FAQ says every diamond piece over $500 comes with one, so confirm before you pay.
Are lab-grown diamonds real diamonds?
GIA says laboratory-grown diamonds have the same crystal structure as natural diamonds, tightly bonded carbon atoms, and nearly the same chemical, optical and physical properties. By eye the difference can be indistinguishable, but gemological laboratories can detect the different growth history with advanced instruments. They are grown by high-pressure high-temperature (HPHT) or chemical vapor deposition (CVD).
Sources & verification
What this review is based on and the day we last read it. Specs and claims from the maker are the maker’s own; the verdict and the rating are ours.
From the store
- 18K Gold Lab Diamond Solitaire Necklace (0.1-3ct, F-VS2 or better) product page: specs, options and priceSpecs, options and the listed priceRead October 19, 2026
- Rose Majester shipping pageFree worldwide shipping, dispatch and transit times, duties included for most destinationsRead October 19, 2026
- Rose Majester refunds and returns page30-day window, final-sale custom and special orders, return shipping, cancellationRead October 19, 2026
- Rose Majester warranty pageLifetime warranty, one-time diamond replacement up to 0.10 ct, downgrade promiseRead October 19, 2026
- Rose Majester FAQPrices include the diamond, IGI jewelry reports above $500, dispatch times, PayPal checkoutRead October 19, 2026
- Rose Majester about pageCompany founded 2023 (Changsha Xingchen High-End Art Products Co., Ltd.), factory-direct claimRead October 19, 2026
Independent
- GIA: simulants, moissanite and laboratory-grown diamondsLab-grown diamonds share the crystal structure and nearly the same properties as natural diamondsRead October 19, 2026
What we couldn’t verify
- The listing gives no gold color and no metal line; the 18K comes from the title alone.
- The listing does not tie prices to specific sizes, so which option costs $99 and which costs $1,359 is not stated.
- The listing claims its price beats other sellers because it skips the middleman, but gives no competitor prices to check that against.
- Independent reviews: none found for Rose Majester on Trustpilot, BBB or Reddit in searches on 19 October 2026.
- Delivery times and IGI report inclusion differ between the shipping page, the FAQ and individual listings.
- The factory-direct and 76%-below-retail claims are the store's own; the crossed-out prices are not market prices.
Spotted an error or something out of date? Tell us and we’ll fix it and update the date.
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