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Marquise|Lab Grown|IGI

3.11ct I VS1 Marquise Lab Grown Diamond

EX • I/VS1 • IGI LG846648111

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846648111

Diamond specifications and retailer prices

From $1,597 AUD
$1,122 USD
As of November 1, 2026
Save $3,131 AUD (66%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,728 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 3.11ct lab-grown marquise diamond

This 3.11ct lab-grown marquise sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG846648111 or 846648111. Listed at 7 retailers as of October 26, 2026, with prices from $1,597 to $4,728, a $3,131 spread on the same certified stone. MOH London lists it at $4,728. 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
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846648111
Dimensions14.87 × 7.68 × 4.85 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.87 mm7.68 mm3.11 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846648111
Side View
Table 59.0%Crown 35.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,728 AUD|Low: $1,411 AUD|High: $4,940 AUD|Avg: $2,838 AUD|+19.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 7$1,411 AUD
Retailer 6$1,597 AUD
Retailer 2$1,801 AUD
Retailer 4$3,132 AUD
Retailer 3$3,217 AUD
Retailer 5$3,865 AUD
MOH London$4,728 AUD

6 data points across 7 retailers

7 retailers$1,597 AUD to $4,728 AUD

Retailer 1
-
$1,411 AUD
€944 EUR
Price last confirmed 7 days ago
A
Retailer 2
-
$1,597 AUD
$1,122 USD
View
A
Retailer 3
-
$1,801 AUD
$1,265 USD
View
B+
Retailer 4
-
$3,132 AUD
$2,200 USD
View
B+
Retailer 5
-
$3,217 AUD
$2,260 USD
View
B
Retailer 6
-
$3,865 AUD
$2,715 USD
View
Most Expensive
B
MOH London
LG846648111 · Oct 26
$4,728 AUD
£2,615 GBP
View
6 more retailers have this diamond
Prices start from $1,597 AUDSave up to $3,131 AUD

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
$1,597 AUD