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Marquise|Lab Grown|IGI

1.03ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG784639658

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG784639658

Diamond specifications and retailer prices

From €653 EUR
$730 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: €653 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG784639658 or 784639658. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.03
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784639658
Dimensions10.09 × 5.31 × 3.40 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.09 mm5.31 mm1.03 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784639658
Side View
Table 55.0%Crown 35.4°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 64.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: €653 EUR|Low: €92 EUR|High: €994 EUR|Avg: €403 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
July 2, 2026
Retailer 9€92 EUR
Retailer 10€289 EUR
Retailer 2€318 EUR
Retailer 3€377 EUR
Retailer 7€403 EUR
Retailer 5€436 EUR
Retailer 6€500 EUR
Retailer 4€518 EUR
Retailer 8€615 EUR
Brilliant Earth€653 EUR

56 data points across 10 retailers

1 retailer

B
Brilliant Earth
18321999A · Oct 31
€653 EUR
$730 USD
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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
1.03ct Marquise
€653 EUR