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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG844613300

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844613300

Diamond specifications and retailer prices

From €244 EUR
$274 USD
As of November 1, 2026
Save €901 EUR (79%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €1,146 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.78ct lab-grown marquise diamond

This 1.78ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844613300 or 844613300. Listed at 3 retailers as of October 28, 2026, with prices from €244 to €1,146, a €901 spread on the same certified stone. Rare Carat lists it at €1,146. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844613300
Dimensions12.41 × 6.21 × 3.97 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.41 mm6.21 mm1.78 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844613300
Side View
Table 62.0%Crown 37.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €1,146 EUR|Low: €244 EUR|High: €1,146 EUR|Avg: €642 EUR
Rare Carat
Retailer 2
Retailer 3
October 29, 2026
Retailer 3€244 EUR
Retailer 2€535 EUR
Rare Carat€1,146 EUR

17 data points across 3 retailers

3 retailers€244 EUR to €1,146 EUR

A
Cheapest Retailer
-
€244 EUR
$274 USD
Final sale: no returns
A
Retailer 2
-
€535 EUR
£472 GBP
View
Most Expensive
B
Rare Carat
844613300 · Oct 28
€1,146 EUR
$1,285 USD
View
2 more retailers have this diamond
Prices start from €244 EURSave up to €901 EUR

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.

A
1.78ct Marquise
€244 EUR