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Cushion|Lab Grown|IGI

3.11ct E VS2 Cushion Lab Grown Diamond

ID • E/VS2 • IGI LG817671886

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG817671886

Diamond specifications and retailer prices

From $1,434 AUD
$1,007 USD
As of October 31, 2026
Save $2,254 AUD (61%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,687 AUD at Brilliance · As of October 31, 2026
View at Brilliance

About this 3.11ct lab-grown cushion diamond

This 3.11ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG817671886 or 817671886. Listed at 4 retailers as of October 31, 2026, with prices from $1,434 to $3,687, a $2,254 spread on the same certified stone. Brilliance lists it at $3,687. 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
E
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817671886
Dimensions10.52 × 7.44 × 4.95 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.52 mm7.44 mm3.11 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817671886
Side View
Table 51.0%Crown 35.9°Girdle: MED-THKPavilion 41.4°Culet: LargeDepth 66.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $3,687 AUD|Low: $1,434 AUD|High: $3,687 AUD|Avg: $2,113 AUD
Brilliance
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 2$1,434 AUD
Retailer 4$1,764 AUD
Retailer 3$1,915 AUD
Brilliance$3,687 AUD

2 data points across 4 retailers

4 retailers$1,434 AUD to $3,687 AUD

A
Cheapest Retailer
-
$1,434 AUD
$1,007 USD
A
Retailer 2
-
$1,764 AUD
$1,239 USD
View
A
Retailer 3
-
$1,915 AUD
£1,059 GBP
View
Most Expensive
B
Brilliance
D46574395 · Oct 31
$3,687 AUD
$2,590 USD
View
3 more retailers have this diamond
Prices start from $1,434 AUDSave up to $2,254 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 Cushion
$1,434 AUD