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Cushion|Lab Grown|IGI

1.73ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG728559205

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

Certificate IGI LG728559205

Diamond specifications and retailer prices

From €422 EUR
$472 USD
As of November 1, 2026
Save €1,896 EUR (82%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €2,318 EUR at Brilliant Earth · As of October 31, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG728559205 or 728559205. Listed at 9 retailers as of October 31, 2026, with prices from €422 to €2,318, a €1,896 spread on the same certified stone. Brilliant Earth lists it at €2,318. 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
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728559205
Dimensions6.77 × 6.59 × 4.57 mm
L/W Ratio1.03
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
6.77 mm6.59 mm1.73 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728559205
Side View
Table 66.0%Crown 41.2°Girdle: STK-THKPavilion 39.1°Culet: NoneDepth 69.3%

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: Nov 1
Current: €2,050 EUR|Low: €253 EUR|High: €2,274 EUR|Avg: €820 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 7€253 EUR
Retailer 9€422 EUR
Retailer 11€456 EUR
Retailer 5€476 EUR
Retailer 3€520 EUR
Retailer 6€524 EUR
Retailer 2€546 EUR
Retailer 4€651 EUR
Retailer 8€703 EUR
Retailer 12€706 EUR
Retailer 15€1,002 EUR
Retailer 14€1,137 EUR
Retailer 16€1,616 EUR
Retailer 13€1,931 EUR
Brilliant Earth€2,050 EUR
Retailer 10€2,274 EUR

13 data points across 16 retailers

9 retailers€422 EUR to €2,318 EUR

B+
Cheapest Retailer
-
€422 EUR
$472 USD
A
Retailer 2
-
€456 EUR
$510 USD
View
A
Retailer 3
-
€546 EUR
View
A
Retailer 4
-
€636 EUR
$710 USD
View
Retailer 5
-
€1,607 EUR
$1,795 USD
View
Price last confirmed 33 days ago
Retailer 6
-
€1,616 EUR
$1,805 USD
View
Price last confirmed 33 days ago
B
Retailer 7
-
€1,931 EUR
$2,157 USD
View
B
Retailer 8
-
€2,274 EUR
$2,540 USD
View
Most Expensive
B
Brilliant Earth
22410379A · Oct 31
€2,318 EUR
$2,590 USD
View
8 more retailers have this diamond
Prices start from €422 EURSave up to €1,896 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
€422 EUR