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Marquise|Lab Grown|IGI

1.23ct F VS1 Marquise Lab Grown Diamond

VG • F/VS1 • IGI LG685577410

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG685577410

Diamond specifications and retailer prices

From $504 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $504 USD at B2C Jewels
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 B2C Jewels

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG685577410 or 685577410. 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

1.23
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685577410
Dimensions10.58 × 5.61 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.58 mm5.61 mm1.23 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685577410
Side View
Table 60.0%Crown 36.3°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 63.8%

Caratlytics Score

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

Last verified: Nov 2
Current: $504 USD|Low: $492 USD|High: $737 USD|Avg: $575 USD|-31.6%
September 23, 2026
B2C Jewels$504 USD

4 data points across 1 retailer

1 retailer

B+
B2C Jewels
27740314 · Nov 2
$504 USD
View

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B+
1.23ct Marquise
$504 USD