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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 $2,125 AUD
$1,493 USD
As of October 30, 2026
Save $4,204 AUD (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,329 AUD 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 $2,125 to $6,329, a $4,204 spread on the same certified stone. With Clarity lists it at $6,329. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,537 AUD|Low: $2,125 AUD|High: $6,203 AUD|Avg: $4,182 AUD|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
October 31, 2026
Retailer 7$2,125 AUD
Retailer 1$2,537 AUD
Retailer 5$2,793 AUD
Retailer 2$2,801 AUD
Retailer 6$3,126 AUD
Retailer 4$5,395 AUD
Retailer 3$5,972 AUD
Retailer 8$6,117 AUD
With Clarity$6,203 AUD

32 data points across 9 retailers

9 retailers$2,125 AUD to $6,329 AUD

A
Cheapest Retailer
-
$2,125 AUD
$1,493 USD
A
Retailer 2
-
$2,537 AUD
£1,403 GBP
View
B+
Retailer 3
-
$2,793 AUD
$1,962 USD
View
B+
Retailer 4
-
$2,801 AUD
€1,874 EUR
View
B+
Retailer 5
-
$3,126 AUD
$2,196 USD
View
Retailer 6
-
$5,395 AUD
$3,790 USD
View
Price last confirmed 10 days ago
B
Retailer 7
-
$5,972 AUD
£3,303 GBP
View
B
Retailer 8
-
$6,117 AUD
$4,297 USD
View
Most Expensive
B
With Clarity
821655389 · Oct 31
$6,329 AUD
$4,446 USD
View
8 more retailers have this diamond
Prices start from $2,125 AUDSave up to $4,204 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
$2,125 AUD