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Marquise|Lab Grown|IGI

1.03ct G SI1 Marquise Lab Grown Diamond

VG • G/SI1 • IGI LG512224087

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG512224087

Diamond specifications and retailer prices

From €856 EUR
$960 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: €856 EUR at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG512224087 or 512224087. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
G
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512224087
Dimensions10.00 × 5.40 × 3.02 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.00 mm5.40 mm1.03 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512224087
Side View
Table 64.0%Crown 38.5°Girdle: STK-THKPavilion 34.7°Culet: NoneDepth 55.9%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 2
Current: €856 EUR|Low: €463 EUR|High: €2,425 EUR|Avg: €1,336 EUR|-12.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
July 1, 2026
Retailer 3€463 EUR
Retailer 9€637 EUR
Retailer 7€829 EUR
Brilliant Earth€856 EUR
Retailer 8€1,070 EUR
Retailer 4€1,098 EUR
Retailer 6€1,445 EUR
Retailer 5€1,634 EUR
Retailer 10€1,833 EUR
Retailer 2€2,076 EUR

71 data points across 10 retailers

1 retailer

C
Brilliant Earth
19748688A · Nov 2
€856 EUR
$960 USD
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C
1.03ct Marquise
€856 EUR