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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 €496 EUR
$552 USD
As of October 30, 2026
Save €2,846 EUR (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €3,342 EUR 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 29, 2026, with prices from €496 to €3,342, a €2,846 spread on the same certified stone. Brilliant Earth lists it at €3,342. 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

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: €3,342 EUR|Low: €496 EUR|High: €3,441 EUR|Avg: €1,238 EUR|-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€496 EUR
Retailer 12€550 EUR
Retailer 9€588 EUR
Retailer 11€737 EUR
Retailer 5€914 EUR
Retailer 6€926 EUR
Retailer 7€945 EUR
Retailer 4€1,225 EUR
Retailer 10€1,243 EUR
Retailer 2€1,280 EUR
Retailer 8€2,298 EUR
Brilliant Earth€3,342 EUR

42 data points across 12 retailers

15 retailers€496 EUR to €3,342 EUR

A
Cheapest Retailer
-
€496 EUR
$552 USD
Final sale: no returns
Retailer 2
-
€550 EUR
$612 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
€588 EUR
$655 USD
View
A
Retailer 4
-
€737 EUR
$820 USD
View
A
Retailer 5
-
€914 EUR
£801 GBP
View
A
Retailer 6
-
€926 EUR
View
A
Retailer 7
-
€945 EUR
ZAR 16,985 ZAR
View
A
Retailer 8
-
€1,225 EUR
$1,363 USD
View
A
Retailer 9
-
€1,243 EUR
$1,384 USD
View
A
Retailer 10
-
€1,280 EUR
A$2,192 AUD
View
B+
Retailer 11
-
€1,791 EUR
$1,994 USD
View
B+
Retailer 12
-
€1,913 EUR
$2,130 USD
View
B+
Retailer 13
-
€2,298 EUR
£2,014 GBP
View
Retailer 14
-
€2,983 EUR
$3,320 USD
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
21311625A · Oct 29
€3,342 EUR
$3,720 USD
View
14 more retailers have this diamond
Prices start from €496 EURSave up to €2,846 EUR

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
€496 EUR