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Cushion|Lab Grown|IGI

1.56ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG538298330

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG538298330

Diamond specifications and retailer prices

From $379 NZD
$213 USD
As of October 30, 2026
Save $1,864 NZD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,243 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.56ct lab-grown cushion diamond

This 1.56ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG538298330 or 538298330. Listed at 13 retailers as of October 29, 2026, with prices from $379 to $2,243, a $1,864 spread on the same certified stone. Brilliant Earth lists it at $2,243. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.56
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle29.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538298330
Dimensions7.63 × 6.06 × 3.93 mm
L/W Ratio1.26
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
7.63 mm6.06 mm1.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538298330
Side View
Table 58.5%Crown 36.2°Girdle: MED-THKPavilion 29.9°Culet: NoneDepth 64.9%

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: $2,243 NZD|Low: $379 NZD|High: $2,421 NZD|Avg: $1,025 NZD|-7.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 9$379 NZD
Retailer 7$422 NZD
Retailer 5$570 NZD
Retailer 3$695 NZD
Retailer 2$767 NZD
Retailer 10$843 NZD
Retailer 8$1,018 NZD
Retailer 6$1,067 NZD
Retailer 4$1,981 NZD
Brilliant Earth$2,243 NZD

44 data points across 10 retailers

13 retailers$379 NZD to $2,243 NZD

A
Cheapest Retailer
-
$379 NZD
$213 USD
Final sale: no returns
A
Retailer 2
-
$422 NZD
$237 USD
View
B+
Retailer 3
-
$570 NZD
$320 USD
View
A
Retailer 4
-
$695 NZD
€372 EUR
View
A
Retailer 5
-
$767 NZD
£339 GBP
View
A
Retailer 6
-
$843 NZD
$474 USD
View
A
Retailer 7
-
$849 NZD
$477 USD
View
B+
Retailer 8
-
$1,018 NZD
$572 USD
View
B+
Retailer 9
-
$1,067 NZD
$599 USD
View
B+
Retailer 10
-
$1,451 NZD
$815 USD
View
B
Retailer 11
-
$1,981 NZD
£876 GBP
View
B
Retailer 12
-
$2,074 NZD
$1,165 USD
View
Most Expensive
B
Brilliant Earth
10789106A · Oct 29
$2,243 NZD
$1,260 USD
View
12 more retailers have this diamond
Prices start from $379 NZDSave up to $1,864 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
1.56ct Cushion
$379 NZD