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Marquise|Lab Grown|IGI

3.50ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG752523278

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG752523278

Diamond specifications and retailer prices

From €1,355 EUR
CA$2,103 CAD
As of October 30, 2026
Save €600 EUR (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €1,955 EUR at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.5ct lab-grown marquise diamond

This 3.5ct 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 LG752523278 or 752523278. Listed at 2 retailers as of October 30, 2026, with prices from €1,355 to €1,955, a €600 spread on the same certified stone. The Diamond Guys lists it at €1,955. 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

3.50
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG752523278
Dimensions16.38 × 7.80 × 4.87 mm
L/W Ratio2.10
Girdle conditionFaceted
Culet sizePointed
Top View
16.38 mm7.80 mm3.50 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG752523278
Side View
Table 63.0%Crown 35°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: €1,119 EUR|Low: €476 EUR|High: €3,218 EUR|Avg: €1,223 EUR|-21.1%
Retailer 1
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Retailer 5
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Retailer 14
The Diamond Guys
August 3, 2026
Retailer 6€597 EUR
Retailer 3€631 EUR
Retailer 4€643 EUR
Retailer 8€847 EUR
Retailer 12€872 EUR
Retailer 14€962 EUR
Retailer 11€1,113 EUR
Retailer 1€1,119 EUR
Retailer 5€1,310 EUR
Retailer 9€1,355 EUR
Retailer 10€1,665 EUR
Retailer 2€1,812 EUR
The Diamond Guys€1,955 EUR
Retailer 7€2,925 EUR
Retailer 13€3,088 EUR

57 data points across 15 retailers

2 retailers€1,355 EUR to €1,955 EUR

B+
Cheapest Retailer
-
€1,355 EUR
CA$2,103 CAD
Most Expensive
B
The Diamond Guys
1958037485 · Nov 1
€1,955 EUR
$2,184 USD
View
1 more retailer has this diamond
Prices start from €1,355 EURSave up to €600 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.

B+
3.50ct Marquise
€1,355 EUR