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Marquise|Natural|IGI

1.03ct J VS1 Marquise Natural Diamond

VG • J/VS1 • IGI S1D55495

Certificate IGI S1D55495

Diamond specifications and retailer prices

From £4,210 GBP
$5,650 USD
As of November 2, 2026
Save £840 GBP (17%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £7,140 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.03ct natural marquise diamond

This 1.03ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI S1D55495. Listed at 4 retailers as of November 2, 2026, with a relatively tight 20% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.03
Carat
J
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI S1D55495
Dimensions10.42 × 4.66 × 3.30 mm
L/W Ratio2.24
Girdle conditionFaceted
Top View
10.42 mm4.66 mm1.03 ctJ / VS1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI S1D55495
Side View
Table 54.5%CrownGirdle: THK-VTKPavilionCuletDepth 70.8%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 2
Current: £7,140 GBP|Low: £4,154 GBP|High: £7,226 GBP|Avg: £5,300 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4£4,210 GBP
Retailer 3£4,748 GBP
Retailer 2£5,051 GBP
MOH London£7,140 GBP

41 data points across 4 retailers

4 retailers£4,210 GBP to £5,051 GBP

C
Cheapest Retailer
-
£4,210 GBP
$5,650 USD
C
Retailer 2
-
£4,748 GBP
View
C
Retailer 3
-
£5,051 GBP
€6,455 EUR
View
Most Expensive
MOH London
6B495A447 · Nov 2
£7,140 GBP
View
Price under review
3 more retailers have this diamond
Prices start from £4,210 GBPSave up to £840 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.

C
1.03ct Marquise
£4,210 GBP