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Cushion|Lab Grown|IGI

3.09ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG756522143

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG756522143

Diamond specifications and retailer prices

From $2,743 NZD
$1,546 USD
As of October 29, 2026
Save $15,497 NZD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $18,240 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG756522143 or 756522143. Listed at 17 retailers as of October 29, 2026, with prices from $2,743 to $18,240, a $15,497 spread on the same certified stone. Brilliant Earth lists it at $18,240. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756522143
Dimensions7.30 × 7.30 × 4.93 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.30 mm7.30 mm3.09 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756522143
Side View
Table 65.0%Crown 35.8°Girdle: MED-THKPavilion 35.9°Culet: NoneDepth 67.5%

Caratlytics Score

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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 29
Current: $18,240 NZD|Low: $2,743 NZD|High: $18,808 NZD|Avg: $7,051 NZD|-0.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 5$2,743 NZD
Retailer 8$2,936 NZD
Retailer 17$3,149 NZD
Retailer 15$3,238 NZD
Retailer 2$3,940 NZD
Retailer 7$4,202 NZD
Retailer 12$5,144 NZD
Retailer 3$5,640 NZD
Retailer 14$6,427 NZD
Retailer 11$6,598 NZD
Retailer 10$6,733 NZD
Retailer 4$7,658 NZD
Retailer 13$8,157 NZD
Retailer 16$8,802 NZD
Retailer 6$9,990 NZD
Retailer 9$13,955 NZD
Brilliant Earth$18,240 NZD

36 data points across 17 retailers

17 retailers$2,743 NZD to $18,240 NZD

A
Cheapest Retailer
-
$2,743 NZD
$1,546 USD
Final sale: no returns
Retailer 2
-
$2,936 NZD
$1,655 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$3,149 NZD
$1,775 USD
View
A
Retailer 4
-
$3,238 NZD
$1,825 USD
View
A
Retailer 5
-
$3,940 NZD
£1,748 GBP
View
A
Retailer 6
-
$4,202 NZD
$2,368 USD
View
A
Retailer 7
-
$5,144 NZD
€2,761 EUR
View
A
Retailer 8
-
$5,640 NZD
$3,179 USD
View
Retailer 9
-
$6,427 NZD
A$5,573 AUD
View
Price last confirmed 9 days ago
A
Retailer 10
-
$6,598 NZD
ZAR 60,072 ZAR
View
A
Retailer 11
-
$6,733 NZD
£2,988 GBP
View
A
Retailer 12
-
$7,658 NZD
$4,316 USD
View
B+
Retailer 13
-
$8,157 NZD
£3,620 GBP
View
B+
Retailer 14
-
$8,802 NZD
$4,961 USD
View
B+
Retailer 15
-
$9,990 NZD
$5,630 USD
View
Retailer 16
-
$13,955 NZD
A$12,100 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
17439238A · Oct 29
$18,240 NZD
$10,280 USD
View
16 more retailers have this diamond
Prices start from $2,743 NZDSave up to $15,497 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
3.09ct Cushion
$2,743 NZD