Metal
Choose the setting metal and colour.
Forever For Love
Marquise solitaire in solid gold and platinum
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LIFETIME WARRANTY
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Custom design
Any metal. Any gemstone. Any words inside the band. Tell us what you have in mind - we'll make it real.
Configure and buy this custom engagement ring with confidence: the selected metal, gemstone and centre carat size below match the option combination currently chosen above.
Each piece is handcrafted to order by Forever For Love in the metal, stone and carat size you choose.

About this design
This vintage-inspired design showcases an elongated marquise centre stone in a timeless solitaire setting. The refined 1.60 mm band width and 1.50 mm thickness create a subtle, elegant profile that allows the stone to take centre stage.
The ring is made to order in six precious metals: 935 Argentium silver, platinum, and solid gold (6K, 10K, 14K, 18K). You choose your centre stone—lab-grown diamond, natural diamond, moissanite, or our Diamanite option—and select from 15 carat sizes to personalise the ring's scale and presence.
Every ring ships with free insured worldwide delivery, arrives within 8–10 days, and is covered by our limited lifetime warranty including free professional cleaning, prong tightening for life, and one free resize within the first year.
Design specification
Detailed specifications for the marquise vintage solitaire. Custom selections update these specifications where applicable.
Only the currently selected build is shown here — change any option above and this table updates.
Available to customise
Your selected options update above with the product price. These are the standard choices available for this design.
Choose the setting metal and colour.
Pick the centre stone type for your preference.
Pick the centre stone size for the look you want.
Compare available centre stones
Every centre-stone option you can choose for this design, side by side. Your selected stone is the one chosen above in the buy zone.
| Centre Stone Option | Stone type | Mohs Hardness | Refractive Index | Price Tier | Certification | Best Suited For |
|---|---|---|---|---|---|---|
| Moissanite Brilliant Cut | Moissanite | 9.25 / 10 | 2.65 – 2.69 | Accessible | FFL authenticity documentation | Classic brilliant-cut sparkle with strong fire and durability. |
| Moissanite Crushed Ice | Moissanite | 9.25 / 10 | 2.65 – 2.69 | Accessible | FFL authenticity documentation | A crushed-ice sparkle profile within the moissanite options. |
| Diamanite | Store-defined gemstone option | Confirm with us | Confirm with us | Selectable option | Confirm with us | Buyers choosing the store-defined Diamanite option. |
| Lab Diamond | Lab-grown diamond | 10.0 / 10 | 2.42 | Premium | IGI Certified Grading Report | Real diamond optical and physical properties with independent grading. |
| Natural Diamond | Natural diamond | 10.0 / 10 | 2.42 | Premium investment | GIA/IGI Certified Grading Report | Traditional natural diamond origin and heirloom value. |
Metal guide
Every metal offered for this design, compared on what actually matters: composition, colour, durability and who it suits best.
The lower the karat, the higher the share of harder alloy metals: 10K resists scratches best and costs the least, 18K gives the deepest gold colour with a softer surface, and 14K is the most popular middle ground for rings worn daily.
Gold and silver colour finishes — yellow, white or rose — are chosen as an order customisation on this page; they are finish options, not separate variants.
About this design
The marquise's elongated shape and vintage-inspired setting work together to create a timeless, elegant look. The refined 1.60 mm band and 1.50 mm thickness give it a subtle profile that lets the stone shine.
Yes — the Lab Diamond option is IGI-certified and the Natural Diamond option comes with GIA or IGI certification where available. Moissanite and Diamanite options include the store's authenticity documentation.
Yes — you can select from 15 carat sizes, ranging from 1 ct to 8 ct, allowing you to personalise the ring's scale and presence exactly as you wish.
Each ring is made to order and typically arrives within 8–10 days of purchase. Every order ships with free insured worldwide delivery and 14-day returns.
Yes — it is covered by our limited lifetime warranty, which includes free professional cleaning and prong tightening for life, plus one free resize within the first year.
It is available in 935 Argentium Silver, Platinum, 6K Solid Gold, 10K Solid Gold, 14K Solid Gold, 18K Solid Gold. Gold and silver pieces can also be finished in different colours (such as yellow, white or rose) — the colour is chosen as an order customisation rather than a separate variant.
Rings are made in US & Canada sizes — a conversion chart and tips for finding the size you wear are provided on this page.
Yes. Gold can be finished in yellow, white or rose, and silver finishes include yellow silver. The colour finish is selected as a customisation when you order — it is a finish option, not a separate variant.
Quick glance
Looking for one of the shapes below, or something different? We can customise it for you.
Certified standards
Every diamond selected for our custom rings meets strict expert specifications. Here is how we grade each characteristic.
The cut determines a diamond's brilliance, fire, and scintillation. It is the most critical factor of the 4Cs.
We craft our rings exclusively with Excellent to Ideal Cut stones. This ensures maximum light refraction, giving the center diamond its characteristic intense sparkle that reflects from across a room.
Color refers to the presence or absence of trace tint within the diamond, graded from D (colorless) to Z (light yellow).
Our lab-grown diamonds are graded in the elite D, E, and F colorless range. To the naked eye, these stones are completely ice-white, ensuring that your ring reflects pure light without any distracting warm or yellow hues.
Clarity measures the purity of the diamond, observing microscopic inclusions inside the stone or blemishes on the surface.
We offer VS1 to VS2 (Very Slightly Included) diamonds. These stones are guaranteed to be 100% "eye-clean" — meaning any minor microscopic inclusions are completely invisible to the naked eye under normal viewing conditions.
Carat measures the physical weight of the diamond. 1.0 carat is equivalent to 200 milligrams.
We configuration-scale our rings to maintain perfect design proportions across all carat sizes (from 1.0 ct up to 8.0 ct). As the center stone increases, the accent diamonds in the hidden halo are adjusted in scale to keep the ring looking balanced.
Independent Grading
Every single diamond center stone we offer is independently graded and certified. Natural diamonds are graded by the Gemological Institute of America (GIA), while our lab-grown diamonds are certified by the International Gemological Institute (IGI).
Sizing
All our rings come in US ring sizes. If you don't know your US ring size, please see our conversion chart and tips on finding which size you wear.




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