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Cushion|Lab Grown|IGI

1.72ct E SI2 Cushion Lab Grown Diamond

ID • E/SI2 • IGI LG12747420

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG12747420

Diamond specifications and retailer prices

From $1,111 AUD
CA$1,084 CAD
As of October 30, 2026
Save $358 AUD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,469 AUD at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 1.72ct lab-grown cushion diamond

This 1.72ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12747420 or 12747420. Listed at 2 retailers as of October 30, 2026, with prices from $1,111 to $1,469, a $358 spread on the same certified stone. The Diamond Guys lists it at $1,469. 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

1.72
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12747420
Dimensions7.05 × 6.90 × 4.19 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by High Pressure High Tempertature (HPHT) growth process.
Top View
7.05 mm6.90 mm1.72 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12747420
Side View
Table 63.5%Crown 33°Girdle: STK-UNDPavilion 32.1°Culet: NoneDepth 60.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $700 AUD|Low: $549 AUD|High: $1,469 AUD|Avg: $874 AUD|-0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
The Diamond Guys
September 18, 2026
Retailer 4$549 AUD
Retailer 2$581 AUD
Retailer 1$700 AUD
Retailer 5$836 AUD
Retailer 3$1,111 AUD
The Diamond Guys$1,469 AUD

3 data points across 6 retailers

2 retailers$1,111 AUD to $1,469 AUD

B+
Cheapest Retailer
-
$1,111 AUD
CA$1,084 CAD
Most Expensive
B
The Diamond Guys
1779252911 · Oct 30
$1,469 AUD
$1,032 USD
View
1 more retailer has this diamond
Prices start from $1,111 AUDSave up to $358 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+
1.72ct Cushion
$1,111 AUD