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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 $780 USD
CA$1,084 CAD
As of October 27, 2026
Save $252 USD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,032 USD at The Diamond Guys · As of October 28, 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 27, 2026, with prices from $780 to $1,032, a $252 spread on the same certified stone. The Diamond Guys lists it at $1,032. 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
Color
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

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 27
Current: $492 USD|Low: $386 USD|High: $1,032 USD|Avg: $614 USD|-0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
The Diamond Guys
September 18, 2026
Retailer 4$386 USD
Retailer 2$408 USD
Retailer 1$492 USD
Retailer 5$587 USD
Retailer 3$780 USD
The Diamond Guys$1,032 USD

3 data points across 6 retailers

2 retailers$780 USD to $1,032 USD

B+
Cheapest Retailer
-
$780 USD
CA$1,084 CAD
Most Expensive
B
The Diamond Guys
1779252911 · Oct 28
$1,032 USD
View
1 more retailer has this diamond
Prices start from $780 USDSave up to $252 USD

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
$780 USD