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Cushion|Lab Grown|IGI

4.08ct E IF Cushion Lab Grown Diamond

GD • E/IF • IGI LG735516175

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

Certificate IGI LG735516175

Diamond specifications and retailer prices

From $4,879 AUD
$3,427 USD
As of October 30, 2026
Save $11,580 AUD (70%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $16,459 AUD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.08ct lab-grown cushion diamond

This 4.08ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG735516175 or 735516175. Listed at 20 retailers as of October 30, 2026, with prices from $4,879 to $16,459, a $11,580 spread on the same certified stone. Taylor and Hart lists it at $16,459. 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

4.08
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735516175
Dimensions9.47 × 9.24 × 6.12 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
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
9.47 mm9.24 mm4.08 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735516175
Side View
Table 61.0%Crown 37.7°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 66.2%

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: Oct 30
Current: $6,114 AUD|Low: $4,560 AUD|High: $17,262 AUD|Avg: $9,706 AUD
Retailer 1
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
Taylor and Hart
October 31, 2026
Retailer 7$4,879 AUD
Retailer 4$4,954 AUD
Retailer 10$4,958 AUD
Retailer 1$6,114 AUD
Retailer 12$6,382 AUD
Retailer 5$7,104 AUD
Retailer 14$7,553 AUD
Retailer 11$8,095 AUD
Retailer 18$8,158 AUD
Retailer 17$8,210 AUD
Retailer 13$10,055 AUD
Retailer 9$10,442 AUD
Retailer 8$10,639 AUD
Retailer 2$11,305 AUD
Retailer 15$12,037 AUD
Retailer 3$12,375 AUD
Retailer 16$13,144 AUD
Retailer 6$14,094 AUD
Taylor and Hart$16,459 AUD

34 data points across 19 retailers

20 retailers$4,879 AUD to $16,459 AUD

A
Cheapest Retailer
-
$4,879 AUD
$3,427 USD
A
Retailer 2
-
$4,954 AUD
$3,480 USD
View
Retailer 3
-
$4,958 AUD
$3,483 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$6,114 AUD
$4,295 USD
View
A
Retailer 5
-
$6,382 AUD
£3,530 GBP
View
A
Retailer 6
-
$7,104 AUD
$4,990 USD
View
A
Retailer 7
-
$7,553 AUD
€5,053 EUR
View
B+
Retailer 8
-
$8,095 AUD
$5,686 USD
View
Final sale: no returns
A
Retailer 9
-
$8,158 AUD
£4,512 GBP
View
A
Retailer 10
-
$8,210 AUD
$5,767 USD
View
Retailer 11
-
$9,954 AUD
$6,992 USD
View
Price last confirmed 102 days ago
A
Retailer 12
-
$10,055 AUD
ZAR 114,110 ZAR
View
Retailer 13
-
$10,442 AUD
$7,335 USD
View
Price last confirmed 12 days ago
Retailer 14
-
$10,639 AUD
View
Price last confirmed 8 days ago
B+
Retailer 15
-
$11,305 AUD
$7,941 USD
View
B+
Retailer 16
-
$12,037 AUD
£6,658 GBP
View
B+
Retailer 17
-
$12,375 AUD
$8,693 USD
View
B+
Retailer 18
-
$13,144 AUD
$9,233 USD
View
B+
Retailer 19
-
$14,094 AUD
$9,900 USD
View
Most Expensive
B+
Taylor and Hart
ZLHBLA8 · Oct 30
$16,459 AUD
$11,562 USD
View
19 more retailers have this diamond
Prices start from $4,879 AUDSave up to $11,580 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
4.08ct Cushion
$4,879 AUD