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Marquise|Lab Grown|IGI

3.18ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG844649228

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844649228

Diamond specifications and retailer prices

From €352 EUR
$393 USD
As of November 1, 2026
Save €1,667 EUR (83%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €2,018 EUR at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.18ct lab-grown marquise diamond

This 3.18ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844649228 or 844649228. Listed at 3 retailers as of October 28, 2026, with prices from €352 to €2,018, a €1,667 spread on the same certified stone. Rare Carat lists it at €2,018. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.18
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844649228
Dimensions14.97 × 7.52 × 4.83 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.97 mm7.52 mm3.18 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844649228
Side View
Table 62.0%Crown 37.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 64.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €2,018 EUR|Low: €352 EUR|High: €2,018 EUR|Avg: €770 EUR
Rare Carat
Retailer 2
Retailer 3
November 1, 2026
Retailer 3€352 EUR
Retailer 2€732 EUR
Rare Carat€2,018 EUR

19 data points across 3 retailers

3 retailers€352 EUR to €2,018 EUR

A
Cheapest Retailer
-
€352 EUR
$393 USD
Final sale: no returns
A
Retailer 2
-
€732 EUR
£644 GBP
View
Most Expensive
B
Rare Carat
844649228 · Oct 28
€2,018 EUR
$2,255 USD
View
2 more retailers have this diamond
Prices start from €352 EURSave up to €1,667 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
3.18ct Marquise
€352 EUR