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Cushion|Lab Grown|IGI

1.55ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG825659979

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825659979

Diamond specifications and retailer prices

From $1,046 AUD
$735 USD
As of October 31, 2026
Save $3,580 AUD (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,627 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825659979 or 825659979. Listed at 15 retailers as of October 30, 2026, with prices from $1,046 to $4,627, a $3,580 spread on the same certified stone. Brilliant Earth lists it at $4,627. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825659979
Dimensions8.34 × 5.97 × 4.04 mm
L/W Ratio1.40
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
8.34 mm5.97 mm1.55 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825659979
Side View
Table 60.0%Crown 30.8°Girdle: MED-THKPavilion 36°Culet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $4,627 AUD|Low: $905 AUD|High: $5,780 AUD|Avg: $2,586 AUD|-20.0%
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
October 31, 2026
Retailer 6$905 AUD
Retailer 15$1,046 AUD
Retailer 9$1,363 AUD
Retailer 2$1,402 AUD
Retailer 5$1,404 AUD
Retailer 11$1,556 AUD
Retailer 3$1,619 AUD
Retailer 14$2,111 AUD
Retailer 4$2,647 AUD
Retailer 12$2,939 AUD
Retailer 7$2,946 AUD
Retailer 8$3,253 AUD
Retailer 10$3,800 AUD
Retailer 13$3,808 AUD
Brilliant Earth$4,627 AUD

34 data points across 15 retailers

15 retailers$1,046 AUD to $4,627 AUD

Retailer 1
-
$905 AUD
$636 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$1,046 AUD
$735 USD
View
A
Retailer 3
-
$1,363 AUD
€912 EUR
View
A
Retailer 4
-
$1,402 AUD
£776 GBP
View
A
Retailer 5
-
$1,404 AUD
$986 USD
View
A
Retailer 6
-
$1,556 AUD
ZAR 17,657 ZAR
View
A
Retailer 7
-
$1,619 AUD
$1,137 USD
View
A
Retailer 8
-
$2,111 AUD
$1,483 USD
View
B+
Retailer 9
-
$2,647 AUD
£1,464 GBP
View
B+
Retailer 10
-
$2,939 AUD
SGD 2,790 SGD
View
B+
Retailer 11
-
$2,946 AUD
$2,069 USD
View
B+
Retailer 12
-
$3,253 AUD
$2,285 USD
View
B+
Retailer 13
-
$3,800 AUD
£2,102 GBP
View
Retailer 14
-
$3,808 AUD
$2,675 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21418429A · Oct 30
$4,627 AUD
$3,250 USD
View
14 more retailers have this diamond
Prices start from $1,046 AUDSave up to $3,580 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
1.55ct Cushion
$1,046 AUD