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Cushion|Lab Grown|IGI

1.61ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG497146598

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG497146598

Diamond specifications and retailer prices

From $374 NZD
$211 USD
As of October 30, 2026
Save $1,744 NZD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,118 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.61ct lab-grown cushion diamond

This 1.61ct 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 LG497146598 or 497146598. Listed at 13 retailers as of October 29, 2026, with prices from $374 to $2,118, a $1,744 spread on the same certified stone. MOH London lists it at $2,118. 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

1.61
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497146598
Dimensions6.63 × 6.59 × 4.42 mm
L/W Ratio1.01
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
6.63 mm6.59 mm1.61 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG497146598
Side View
Table 62.0%Crown 38.5°Girdle: STK-THKPavilion 36°Culet: NoneDepth 67.1%

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: $2,118 NZD|Low: $374 NZD|High: $2,134 NZD|Avg: $1,087 NZD|+8.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 5$374 NZD
Retailer 11$451 NZD
Retailer 9$621 NZD
Retailer 4$728 NZD
Retailer 6$779 NZD
Retailer 2$829 NZD
Retailer 12$900 NZD
Retailer 10$912 NZD
Retailer 8$1,187 NZD
Retailer 13$1,544 NZD
Retailer 7$1,553 NZD
Retailer 3$2,040 NZD
MOH London$2,118 NZD

42 data points across 13 retailers

13 retailers$374 NZD to $2,118 NZD

A
Cheapest Retailer
-
$374 NZD
$211 USD
Final sale: no returns
Retailer 2
-
$451 NZD
$254 USD
View
Price last confirmed 18 days ago
B+
Retailer 3
-
$621 NZD
$350 USD
View
Retailer 4
-
$728 NZD
£323 GBP
View
Price last confirmed 25 days ago
A
Retailer 5
-
$779 NZD
€418 EUR
View
A
Retailer 6
-
$829 NZD
£368 GBP
View
A
Retailer 7
-
$900 NZD
$507 USD
View
A
Retailer 8
-
$912 NZD
$514 USD
View
B+
Retailer 9
-
$1,187 NZD
$669 USD
View
B+
Retailer 10
-
$1,544 NZD
$870 USD
View
Retailer 11
-
$1,553 NZD
$875 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$2,040 NZD
$1,150 USD
View
Most Expensive
B
MOH London
LG497146598 · Oct 29
$2,118 NZD
£940 GBP
View
12 more retailers have this diamond
Prices start from $374 NZDSave up to $1,744 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
1.61ct Cushion
$374 NZD