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Marquise|Lab Grown|IGI

3.11ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG839667431

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839667431

Diamond specifications and retailer prices

From $499 SGD
$390 USD
As of November 1, 2026
Save $531 SGD (52%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,852 SGD at Rare Carat · As of October 4, 2026
View at Rare Carat

About this 3.11ct lab-grown marquise diamond

This 3.11ct 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 LG839667431 or 839667431. Listed at 3 retailers as of November 1, 2026, with a 106% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.11
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839667431
Dimensions15.54 × 7.52 × 4.75 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.54 mm7.52 mm3.11 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839667431
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $2,852 SGD|Low: $499 SGD|High: $2,852 SGD|Avg: $1,650 SGD
Rare Carat
Retailer 2
Retailer 3
November 3, 2026
Retailer 3$499 SGD
Retailer 2$1,030 SGD
Rare Carat$2,852 SGD

27 data points across 3 retailers

3 retailers$499 SGD to $1,030 SGD

A
Cheapest Retailer
-
$499 SGD
$390 USD
Final sale: no returns
A
Retailer 2
-
$1,030 SGD
£634 GBP
View
Most Expensive
Rare Carat
839667431 · Oct 4
$2,852 SGD
$2,230 USD
View
Price last confirmed 29 days ago
2 more retailers have this diamond
Prices start from $499 SGDSave up to $531 SGD

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
3.11ct Marquise
$499 SGD