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Cushion|Lab Grown|IGI

3.11ct H SI1 Cushion Lab Grown Diamond

VG • H/SI1 • IGI LG447069256

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG447069256

Diamond specifications and retailer prices

From $1,595 NZD
As of November 6, 2026
Save $6,451 NZD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,045 NZD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 3.11ct lab-grown cushion diamond

This 3.11ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG447069256 or 447069256. Listed at 8 retailers as of November 6, 2026, with prices from $1,595 to $8,045, a $6,451 spread on the same certified stone. Do Amore Diamonds lists it at $8,045. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447069256
Dimensions8.37 × 8.31 × 5.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa
Top View
8.37 mm8.31 mm3.11 ctH / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447069256
Side View
Table 62.0%Crown 34.3°Girdle: THK-VTKPavilion 40.3°Culet: NoneDepth 69.2%

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 6
Current: $8,045 NZD|Low: $1,346 NZD|High: $8,045 NZD|Avg: $2,959 NZD|+28.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$1,595 NZD
Retailer 3$1,596 NZD
Retailer 10$1,600 NZD
Retailer 4$1,746 NZD
Retailer 9$1,871 NZD
Retailer 8$2,594 NZD
Retailer 7$2,940 NZD
Retailer 6$4,219 NZD
Retailer 2$5,385 NZD
Do Amore Diamonds$8,045 NZD

8 data points across 10 retailers

8 retailers$1,595 NZD to $8,045 NZD

A
Cheapest Retailer
-
$1,595 NZD
B+
Retailer 2
-
$1,596 NZD
View
A
Retailer 3
-
$1,746 NZD
View
B+
Retailer 4
-
$2,594 NZD
View
Retailer 5
-
$2,940 NZD
View
Price last confirmed 16 days ago
B
Retailer 6
-
$4,219 NZD
View
B
Retailer 7
-
$5,385 NZD
View
Most Expensive
B
Do Amore Diamonds
27-19FC8B45B · Nov 6
$8,045 NZD
$4,460 USD
View
7 more retailers have this diamond
Prices start from $1,595 NZDSave up to $6,451 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
$1,595 NZD