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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 $1,546 USD
As of October 29, 2026
Save $8,734 USD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,280 USD 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 $1,546 to $10,280, a $8,734 spread on the same certified stone. Brilliant Earth lists it at $10,280. 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
Color
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: $10,280 USD|Low: $1,546 USD|High: $10,600 USD|Avg: $3,894 USD|-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 29, 2026
Retailer 4$1,546 USD
Retailer 8$1,655 USD
Retailer 16$1,775 USD
Retailer 14$1,825 USD
Retailer 2$2,259 USD
Retailer 7$2,368 USD
Retailer 11$2,899 USD
Retailer 17$3,179 USD
Retailer 13$3,622 USD
Retailer 10$3,718 USD
Retailer 5$3,871 USD
Retailer 3$4,316 USD
Retailer 12$4,597 USD
Retailer 15$4,961 USD
Retailer 6$5,630 USD
Retailer 9$7,865 USD
Brilliant Earth$10,280 USD

35 data points across 17 retailers

17 retailers$1,546 USD to $10,280 USD

A
Cheapest Retailer
-
$1,546 USD
Final sale: no returns
Retailer 2
-
$1,655 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$1,775 USD
View
A
Retailer 4
-
$1,825 USD
View
A
Retailer 5
-
$2,259 USD
£1,779 GBP
View
A
Retailer 6
-
$2,368 USD
View
A
Retailer 7
-
$2,899 USD
€2,761 EUR
View
A
Retailer 8
-
$3,179 USD
View
Retailer 9
-
$3,622 USD
A$5,573 AUD
View
Price last confirmed 7 days ago
A
Retailer 10
-
$3,718 USD
ZAR 60,072 ZAR
View
A
Retailer 11
-
$3,871 USD
£3,048 GBP
View
A
Retailer 12
-
$4,316 USD
View
B+
Retailer 13
-
$4,597 USD
£3,620 GBP
View
B+
Retailer 14
-
$4,961 USD
View
B+
Retailer 15
-
$5,630 USD
View
Retailer 16
-
$7,865 USD
A$12,100 AUD
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
17439238A · Oct 29
$10,280 USD
View
16 more retailers have this diamond
Prices start from $1,546 USDSave up to $8,734 USD

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
$1,546 USD