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Marquise|Natural|GIA

1.00ct F I1 Marquise Natural Diamond

F/I1 • GIA 5231379456

Certificate GIA 5231379456

Diamond specifications and retailer prices

From £1,997 GBP
$2,680 USD
As of November 2, 2026
Save £369 GBP (16%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,366 GBP at Yorxs · As of November 2, 2026
View at Yorxs

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included) and certified by GIA 5231379456. Listed at 2 retailers as of November 2, 2026, with prices from £1,997 to £2,366, a £369 spread on the same certified stone. Yorxs lists it at £2,366. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
F
Colour
I1
Clarity
-
Cut

Specifications

Cut
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231379456
Dimensions9.99 × 5.34 × 3.11 mm
L/W Ratio1.87
Top View
9.99 mm5.34 mm1.00 ctF / I1
OriginNatural
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 5231379456
Side View
Table 66.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 58.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: £1,997 GBP|Low: £1,997 GBP|High: £2,367 GBP|Avg: £2,171 GBP
Retailer 1
Yorxs
November 2, 2026
Retailer 1£1,997 GBP
Yorxs£2,366 GBP

16 data points across 2 retailers

2 retailers£1,997 GBP to £2,366 GBP

B+
Cheapest Retailer
-
£1,997 GBP
$2,680 USD
Most Expensive
B
Yorxs
F23283EBD · Nov 2
£2,366 GBP
€3,024 EUR
View
1 more retailer has this diamond
Prices start from £1,997 GBPSave up to £369 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.00ct Marquise
£1,997 GBP