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Cushion|Lab Grown|IGI

1.73ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG598342461

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG598342461

Diamond specifications and retailer prices

From $983 NZD
$552 USD
As of October 28, 2026
Save $5,641 NZD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,623 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.73ct lab-grown cushion diamond

This 1.73ct 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 LG598342461 or 598342461. Listed at 15 retailers as of October 28, 2026, with prices from $983 to $6,623, a $5,641 spread on the same certified stone. Brilliant Earth lists it at $6,623. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598342461
Dimensions7.87 × 6.45 × 4.49 mm
L/W Ratio1.22
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
7.87 mm6.45 mm1.73 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598342461
Side View
Table 61.0%Crown 33.4°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 69.6%

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 28
Current: $6,623 NZD|Low: $983 NZD|High: $6,819 NZD|Avg: $2,452 NZD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 3$983 NZD
Retailer 12$1,090 NZD
Retailer 9$1,166 NZD
Retailer 11$1,460 NZD
Retailer 5$1,811 NZD
Retailer 6$1,836 NZD
Retailer 7$1,872 NZD
Retailer 4$2,427 NZD
Retailer 10$2,464 NZD
Retailer 2$2,537 NZD
Retailer 8$4,554 NZD
Brilliant Earth$6,623 NZD

42 data points across 12 retailers

15 retailers$983 NZD to $6,623 NZD

A
Cheapest Retailer
-
$983 NZD
$552 USD
Final sale: no returns
Retailer 2
-
$1,090 NZD
$612 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$1,166 NZD
$655 USD
View
A
Retailer 4
-
$1,460 NZD
$820 USD
View
A
Retailer 5
-
$1,811 NZD
£801 GBP
View
A
Retailer 6
-
$1,836 NZD
€982 EUR
View
A
Retailer 7
-
$1,872 NZD
ZAR 16,985 ZAR
View
A
Retailer 8
-
$2,427 NZD
$1,363 USD
View
A
Retailer 9
-
$2,464 NZD
$1,384 USD
View
Retailer 10
-
$2,537 NZD
A$2,192 AUD
View
B+
Retailer 11
-
$3,550 NZD
$1,994 USD
View
B+
Retailer 12
-
$3,792 NZD
$2,130 USD
View
B+
Retailer 13
-
$4,554 NZD
£2,014 GBP
View
Retailer 14
-
$5,911 NZD
$3,320 USD
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
21311625A · Oct 29
$6,623 NZD
$3,720 USD
View
14 more retailers have this diamond
Prices start from $983 NZDSave up to $5,641 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
1.73ct Cushion
$983 NZD