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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 $2,649 NZD
$1,493 USD
As of October 30, 2026
Save $5,240 NZD (66%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,889 NZD 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 $2,649 to $7,889, a $5,240 spread on the same certified stone. With Clarity lists it at $7,889. 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: $3,465 NZD|Low: $2,649 NZD|High: $7,731 NZD|Avg: $5,212 NZD|+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$2,649 NZD
Retailer 2$3,162 NZD
Retailer 1$3,465 NZD
Retailer 5$3,481 NZD
Retailer 6$3,896 NZD
Retailer 4$6,725 NZD
Retailer 3$7,443 NZD
Retailer 8$7,624 NZD
With Clarity$7,731 NZD

32 data points across 9 retailers

9 retailers$2,649 NZD to $7,889 NZD

A
Cheapest Retailer
-
$2,649 NZD
$1,493 USD
A
Retailer 2
-
$3,162 NZD
£1,403 GBP
View
B+
Retailer 3
-
$3,465 NZD
€1,860 EUR
View
B+
Retailer 4
-
$3,481 NZD
$1,962 USD
View
B+
Retailer 5
-
$3,896 NZD
$2,196 USD
View
Retailer 6
-
$6,725 NZD
$3,790 USD
View
Price last confirmed 10 days ago
B
Retailer 7
-
$7,443 NZD
£3,303 GBP
View
B
Retailer 8
-
$7,624 NZD
$4,297 USD
View
Most Expensive
B
With Clarity
821655389 · Oct 31
$7,889 NZD
$4,446 USD
View
8 more retailers have this diamond
Prices start from $2,649 NZDSave up to $5,240 NZD

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
$2,649 NZD