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Cushion|Lab Grown|IGI

4.34ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG815610195

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG815610195

Diamond specifications and retailer prices

From $3,780 AUD
£2,091 GBP
As of October 30, 2026
Save $15,567 AUD (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $22,165 AUD at Brilliant Earth · As of September 23, 2026
View at Brilliant Earth

About this 4.34ct lab-grown cushion diamond

This 4.34ct 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 LG815610195 or 815610195. Listed at 21 retailers as of October 30, 2026, with a 412% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.34
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815610195
Dimensions10.96 × 8.87 × 5.86 mm
L/W Ratio1.24
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
10.96 mm8.87 mm4.34 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815610195
Side View
Table 62.0%Crown 34.7°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 66.1%

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 30
Current: $19,347 AUD|Low: $3,767 AUD|High: $21,496 AUD|Avg: $10,056 AUD|-10.0%
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
Retailer 18
Retailer 19
October 30, 2026
Retailer 2$3,780 AUD
Retailer 8$4,366 AUD
Retailer 5$4,716 AUD
Retailer 19$4,755 AUD
Retailer 18$5,931 AUD
Retailer 12$6,112 AUD
Retailer 9$7,041 AUD
Retailer 14$7,229 AUD
Retailer 4$7,810 AUD
Retailer 6$9,048 AUD
Retailer 13$9,631 AUD
Retailer 16$9,709 AUD
Retailer 17$10,115 AUD
Retailer 3$11,503 AUD
Retailer 15$12,178 AUD
Retailer 10$15,177 AUD
Retailer 7$15,771 AUD
Retailer 11$18,373 AUD
Brilliant Earth$19,347 AUD

29 data points across 19 retailers

21 retailers$3,780 AUD to $19,347 AUD

A
Cheapest Retailer
-
$3,780 AUD
£2,091 GBP
A
Retailer 2
-
$4,366 AUD
$3,067 USD
View
Final sale: no returns
A
Retailer 3
-
$4,716 AUD
$3,313 USD
View
A
Retailer 4
-
$4,755 AUD
$3,340 USD
View
A
Retailer 5
-
$5,931 AUD
$4,166 USD
View
A
Retailer 6
-
$6,112 AUD
£3,380 GBP
View
A
Retailer 7
-
$7,041 AUD
$4,946 USD
View
A
Retailer 8
-
$7,229 AUD
€4,836 EUR
View
A
Retailer 9
-
$7,810 AUD
£4,320 GBP
View
A
Retailer 10
-
$9,048 AUD
$6,356 USD
View
A
Retailer 11
-
$9,631 AUD
ZAR 109,291 ZAR
View
Retailer 12
-
$9,709 AUD
View
Price last confirmed 8 days ago
Retailer 13
-
$10,115 AUD
$7,105 USD
View
Price last confirmed 12 days ago
A
Retailer 14
-
$11,365 AUD
$7,983 USD
View
A
Retailer 15
-
$11,503 AUD
$8,080 USD
View
A
Retailer 16
-
$12,178 AUD
£6,736 GBP
View
B+
Retailer 17
-
$15,177 AUD
SGD 14,407 SGD
View
B+
Retailer 18
-
$15,771 AUD
$11,078 USD
View
Retailer 19
-
$18,373 AUD
View
Price last confirmed 22 days ago
B+
Retailer 20
-
$19,347 AUD
$13,590 USD
View
Most Expensive
Brilliant Earth
20710967A · Sep 23
$22,165 AUD
$15,570 USD
View
Price last confirmed 37 days ago
20 more retailers have this diamond
Prices start from $3,780 AUDSave up to $15,567 AUD

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
4.34ct Cushion
$3,780 AUD