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Cushion|Lab Grown|IGI

3.06ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG677570466

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG677570466

Diamond specifications and retailer prices

From $989 NZD
As of November 6, 2026
Save $2,583 NZD (72%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,572 NZD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 3.06ct lab-grown cushion diamond

This 3.06ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG677570466 or 677570466. Listed at 7 retailers as of November 1, 2026, with prices from $989 to $3,572, a $2,583 spread on the same certified stone. Rare Carat lists it at $3,572. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.06
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677570466
Dimensions10.44 × 7.10 × 4.84 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.44 mm7.10 mm3.06 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677570466
Side View
Table 59.0%Crown 36.5°Girdle: MED-THKPavilion 38.5°Culet: NoneDepth 68.2%

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: $3,572 NZD|Low: $989 NZD|High: $3,572 NZD|Avg: $1,857 NZD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$989 NZD
Retailer 2$1,295 NZD
Retailer 8$1,295 NZD
Retailer 6$1,310 NZD
Retailer 9$1,326 NZD
Retailer 4$1,791 NZD
Retailer 7$2,439 NZD
Retailer 3$2,933 NZD
Rare Carat$3,572 NZD

21 data points across 9 retailers

7 retailers$989 NZD to $3,572 NZD

B+
Cheapest Retailer
-
$989 NZD
A
Retailer 2
-
$1,295 NZD
View
A
Retailer 3
-
$1,310 NZD
View
A
Retailer 4
-
$1,791 NZD
View
B+
Retailer 5
-
$2,439 NZD
View
B+
Retailer 6
-
$2,933 NZD
View
Most Expensive
B
Rare Carat
C-262_l_677570466 · Nov 1
$3,572 NZD
$1,980 USD
View
6 more retailers have this diamond
Prices start from $989 NZDSave up to $2,583 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
3.06ct Cushion
$989 NZD