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Marquise|Lab Grown|IGI

1.00ct F SI1 Marquise Lab Grown Diamond

EX • F/SI1 • IGI LG797699454

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG797699454

Diamond specifications and retailer prices

From $610 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $610 USD 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 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG797699454 or 797699454. 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. 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

1.00
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797699454
Dimensions9.73 × 5.39 × 3.32 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.73 mm5.39 mm1.00 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797699454
Side View
Table 60.0%Crown 31.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $315 USD|Low: $315 USD|High: $639 USD|Avg: $446 USD|-0.5%
Retailer 1
Retailer 2
Retailer 3
May 21, 2026
Retailer 1$315 USD
Retailer 2$428 USD
Retailer 3$639 USD

4 data points across 3 retailers

1 retailer

B
Brilliant Earth
19074299A · Nov 2
$610 USD
View

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
$610 USD