Is a lab grown diamond a real diamond?

Yes. It has the same carbon crystal structure as a mined diamond, just grown in a lab. It is not a simulant like cubic zirconia.

How does a 5 carat oval compare with a 1 or 2 carat?

It reads much larger on the hand and covers more of the finger. The slim band keeps it from looking heavy, but the stone dominates the design.

Is the thin band durable enough for everyday wear?

A 1.6–1.7 mm band is on the delicate side. It suits someone careful with jewelry; daily hard wear raises the risk of bending over years.

Can I get it in a different metal or gemstone?

Yes. It comes in 14k or 18k yellow, white or rose gold or platinum, and Capucinne will quote other gemstones on request before purchase.

What is included with the ring?

It arrives gift wrapped with insured express shipping from Europe. The listing does not mention a separate certificate, so ask about grading paperwork before ordering.

How do I choose a size?

Sizing follows the US ring size chart, with US 2–8 standard and other sizes quoted on request. Have your finger measured before ordering, since resizing a thin band is limited.

Capucinne

Serafina 5 carat oval lab grown diamond ring - platinum

Best price now

$7,600.00at CapucinneChecked 23 min ago

Prices are checked against each store and labelled with when.

Visit Capucinne

Capucinne

Serafina 5 carat oval lab grown diamond ring - platinum

Best price now

$7,600.00at CapucinneChecked 23 min ago

Prices are checked against each store and labelled with when.

Visit Capucinne

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Price facts

Lowest price today: $7,600.00 at Capucinne (checked Nov 15, 2026).

Our take on the Serafina 5 carat oval lab grown diamond ring - platinum

The Serafina is a sculptural solitaire from Capucinne built around a 5 carat oval lab grown diamond in F color and VS clarity, set on a slim 1.6–1.7 mm band. The stone is a special oval cut, so the outline is softer and less uniform than a standard brilliant oval. It is made to order in 14k or 18k gold or platinum, and the design can be built with other gemstones on request. It suits someone who wants a large, distinctive center stone and a delicate band, and who accepts a made-to-order timeline and a thin shank that needs care. Against typical lab diamond solitaires, the carat size is the draw; the trade-off is a very slim band and a cut that is unusual rather than classically brilliant.

Best forShoppers wanting a large oval lab diamond engagement ringBuyers who prefer a sculptural, non-standard stone cutAnyone choosing between gold and platinum settingsCouples ordering a made-to-measure ring

Pros

Large 5 carat oval lab grown center stone
F color and VS clarity
Choice of 14k or 18k gold or platinum
Slim 1.6–1.7 mm band for a light look
Custom gemstone options on request

Cons

Very thin band is less durable for daily wear
Special oval cut is not a classic brilliant look
Made to order, so expect a production wait
Sizing outside US 2–8 is a custom request

Serafina 5 carat oval lab grown diamond ring - platinum prices at every store

CapucinneNew
In stock
$7,600.00Checked 23 min ago
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Serafina 5 carat oval lab grown diamond ring - platinum price history

Lowest price we've seen: $7,600.00 on Nov 15 at Capucinne. Tracked across 1 store since Nov 15.

About the Serafina 5 carat oval lab grown diamond ring - platinum

The Serafina is a sculptural engagement ring with a lab grown diamond as its center stone.

The diamond is white, with F color and VS clarity. The band is 1.6 to 1.7 mm wide.

The design can also be made with gemstones of your choosing. For a custom ring, contact the maker before purchase.

Gemstone: Lab grown diamond
Stone weight: 5 ct approx.
Cut: Unique oval cut, full cut
Shape: Oval-ish
Color: White, F color grade
Clarity: VS
Band width: 1.6 - 1.7 mm
Sizing: US ring sizes
Customization: Other gemstones available on request

Questions and answers

Is a lab grown diamond a real diamond?: Yes. It has the same carbon crystal structure as a mined diamond, just grown in a lab. It is not a simulant like cubic zirconia.
How does a 5 carat oval compare with a 1 or 2 carat?: It reads much larger on the hand and covers more of the finger. The slim band keeps it from looking heavy, but the stone dominates the design.
Is the thin band durable enough for everyday wear?: A 1.6–1.7 mm band is on the delicate side. It suits someone careful with jewelry; daily hard wear raises the risk of bending over years.
Can I get it in a different metal or gemstone?: Yes. It comes in 14k or 18k yellow, white or rose gold or platinum, and Capucinne will quote other gemstones on request before purchase.
What is included with the ring?: It arrives gift wrapped with insured express shipping from Europe. The listing does not mention a separate certificate, so ask about grading paperwork before ordering.
How do I choose a size?: Sizing follows the US ring size chart, with US 2–8 standard and other sizes quoted on request. Have your finger measured before ordering, since resizing a thin band is limited.
Where is the Serafina 5 carat oval lab grown diamond ring - platinum cheapest?: At Capucinne, for $7,600.00, as of our latest check.