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Cushion|Lab Grown|IGI

1.55ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG825633211

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

Certificate IGI LG825633211

Diamond specifications and retailer prices

From $802 NZD
$452 USD
As of October 30, 2026
Save $4,184 NZD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,986 NZD at Brilliant Earth · As of October 31, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825633211 or 825633211. Listed at 13 retailers as of October 30, 2026, with prices from $802 to $4,986, a $4,184 spread on the same certified stone. Brilliant Earth lists it at $4,986. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825633211
Dimensions6.73 × 6.55 × 4.17 mm
L/W Ratio1.03
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
6.73 mm6.55 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825633211
Side View
Table 60.0%Crown 34.8°Girdle: STK-THKPavilion 34°Culet: NoneDepth 63.7%

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 30
Current: $4,986 NZD|Low: $802 NZD|High: $5,589 NZD|Avg: $2,565 NZD|-9.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 10$802 NZD
Retailer 2$917 NZD
Retailer 7$1,153 NZD
Retailer 9$1,411 NZD
Retailer 5$1,464 NZD
Retailer 6$1,554 NZD
Retailer 4$1,954 NZD
Retailer 11$3,277 NZD
Retailer 8$3,334 NZD
Retailer 12$3,499 NZD
Retailer 3$4,178 NZD
Brilliant Earth$4,986 NZD

41 data points across 12 retailers

13 retailers$802 NZD to $4,986 NZD

A
Cheapest Retailer
-
$802 NZD
$452 USD
Final sale: no returns
A
Retailer 2
-
$917 NZD
£407 GBP
View
A
Retailer 3
-
$1,153 NZD
$650 USD
View
A
Retailer 4
-
$1,411 NZD
$795 USD
View
A
Retailer 5
-
$1,464 NZD
£650 GBP
View
A
Retailer 6
-
$1,554 NZD
€834 EUR
View
A
Retailer 7
-
$1,954 NZD
$1,101 USD
View
B+
Retailer 8
-
$2,926 NZD
$1,649 USD
View
B+
Retailer 9
-
$3,277 NZD
$1,847 USD
View
B+
Retailer 10
-
$3,334 NZD
$1,879 USD
View
B+
Retailer 11
-
$3,499 NZD
£1,553 GBP
View
Retailer 12
-
$4,178 NZD
$2,355 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21322734A · Oct 31
$4,986 NZD
$2,810 USD
View
12 more retailers have this diamond
Prices start from $802 NZDSave up to $4,184 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
1.55ct Cushion
$802 NZD