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Cushion|Lab Grown|IGI

1.73ct H SI1 Cushion Lab Grown Diamond

GD • H/SI1 • IGI LG538290301

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG538290301

Diamond specifications and retailer prices

From $494 AUD
$347 USD
As of November 1, 2026
Save $1,697 AUD (77%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,191 AUD at MOH London · As of November 1, 2026
View at MOH London

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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG538290301 or 538290301. Listed at 9 retailers as of November 1, 2026, with prices from $494 to $2,191, a $1,697 spread on the same certified stone. MOH London lists it at $2,191. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.73
Carat
H
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538290301
Dimensions7.41 × 7.34 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.41 mm7.34 mm1.73 ctH / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538290301
Side View
Table 61.5%Crown 34.4°Girdle: MED-STKPavilion 42°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,191 AUD|Low: $353 AUD|High: $2,218 AUD|Avg: $1,127 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7$494 AUD
Retailer 5$547 AUD
Retailer 4$826 AUD
Retailer 9$874 AUD
Retailer 6$891 AUD
Retailer 8$1,034 AUD
Retailer 10$1,105 AUD
Retailer 3$1,345 AUD
Retailer 2$1,495 AUD
MOH London$2,191 AUD

12 data points across 10 retailers

9 retailers$494 AUD to $2,191 AUD

B+
Cheapest Retailer
-
$494 AUD
$347 USD
Final sale: no returns
Retailer 2
-
$547 AUD
$384 USD
View
Price last confirmed 22 days ago
B+
Retailer 3
-
$826 AUD
$580 USD
View
B+
Retailer 4
-
$874 AUD
$614 USD
View
B+
Retailer 5
-
$891 AUD
$626 USD
View
B+
Retailer 6
-
$1,034 AUD
$726 USD
View
B+
Retailer 7
-
$1,345 AUD
$945 USD
View
B+
Retailer 8
-
$1,495 AUD
$1,050 USD
View
Most Expensive
B
MOH London
LG538290301 · Nov 1
$2,191 AUD
£1,212 GBP
View
8 more retailers have this diamond
Prices start from $494 AUDSave up to $1,697 AUD

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.

B+
1.73ct Cushion
$494 AUD