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Cushion|Lab Grown|IGI

3.11ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG821655389

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821655389

Diamond specifications and retailer prices

From $1,493 USD
As of October 30, 2026
Save $2,953 USD (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,446 USD at With Clarity · As of October 31, 2026
View at With Clarity

About this 3.11ct lab-grown cushion diamond

This 3.11ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG821655389 or 821655389. Listed at 9 retailers as of October 30, 2026, with prices from $1,493 to $4,446, a $2,953 spread on the same certified stone. With Clarity lists it at $4,446. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.11
Carat
D
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821655389
Dimensions9.36 × 7.65 × 5.24 mm
L/W Ratio1.22
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.36 mm7.65 mm3.11 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821655389
Side View
Table 63.0%Crown 38.3°Girdle: STK-VTKPavilion 37.5°Culet: NoneDepth 68.5%

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: Oct 30
Current: $1,953 USD|Low: $1,493 USD|High: $4,357 USD|Avg: $2,938 USD|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
October 31, 2026
Retailer 7$1,493 USD
Retailer 2$1,782 USD
Retailer 1$1,953 USD
Retailer 5$1,962 USD
Retailer 6$2,196 USD
Retailer 4$3,790 USD
Retailer 3$4,195 USD
Retailer 8$4,297 USD
With Clarity$4,357 USD

32 data points across 9 retailers

9 retailers$1,493 USD to $4,446 USD

A
Cheapest Retailer
-
$1,493 USD
A
Retailer 2
-
$1,782 USD
£1,403 GBP
View
B+
Retailer 3
-
$1,953 USD
€1,860 EUR
View
B+
Retailer 4
-
$1,962 USD
View
B+
Retailer 5
-
$2,196 USD
View
Retailer 6
-
$3,790 USD
View
Price last confirmed 10 days ago
B
Retailer 7
-
$4,195 USD
£3,303 GBP
View
B
Retailer 8
-
$4,297 USD
View
Most Expensive
B
With Clarity
821655389 · Oct 31
$4,446 USD
View
8 more retailers have this diamond
Prices start from $1,493 USDSave up to $2,953 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
$1,493 USD