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Cushion|Lab Grown|IGI

3.11ct I VS1 Cushion Lab Grown Diamond

ID • I/VS1 • IGI LG786626954

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG786626954

Diamond specifications and retailer prices

From $1,168 USD
As of November 4, 2026
Save $2,142 USD (65%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,310 USD at MOH London · As of November 3, 2026
View at MOH London

About this 3.11ct lab-grown cushion diamond

This 3.11ct lab-grown cushion 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 LG786626954 or 786626954. Listed at 6 retailers as of November 3, 2026, with prices from $1,168 to $3,310, a $2,142 spread on the same certified stone. MOH London lists it at $3,310. 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
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle43°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786626954
Dimensions11.15 × 7.34 × 4.52 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.15 mm7.34 mm3.11 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786626954
Side View
Table 65.0%Crown 33.9°Girdle: STK-VTKPavilion 43°Culet: LargeDepth 61.6%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $3,310 USD|Low: $762 USD|High: $3,354 USD|Avg: $1,701 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 4, 2026
Retailer 6$762 USD
Retailer 4$1,168 USD
Retailer 2$1,170 USD
Retailer 7$1,220 USD
Retailer 9$1,277 USD
Retailer 3$1,655 USD
Retailer 5$2,225 USD
Retailer 8$2,463 USD
MOH London$3,310 USD

17 data points across 9 retailers

6 retailers$1,168 USD to $3,310 USD

A
Cheapest Retailer
-
$1,168 USD
A
Retailer 2
-
$1,170 USD
View
A
Retailer 3
-
$1,220 USD
View
B+
Retailer 4
-
$1,655 USD
View
Retailer 5
-
$2,225 USD
View
Price last confirmed 20 days ago
Most Expensive
B
MOH London
LG786626954 · Nov 3
$3,310 USD
£2,606 GBP
View
5 more retailers have this diamond
Prices start from $1,168 USDSave up to $2,142 USD

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
$1,168 USD