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Cushion|Lab Grown|IGI

1.67ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG522222348

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG522222348

Diamond specifications and retailer prices

From $320 AUD
$225 USD
As of October 30, 2026
Save $1,390 AUD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,710 AUD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.67ct lab-grown cushion diamond

This 1.67ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522222348 or 522222348. Listed at 14 retailers as of October 30, 2026, with prices from $320 to $1,710, a $1,390 spread on the same certified stone. Reve Diamonds lists it at $1,710. 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

1.67
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle29.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522222348
Dimensions6.93 × 6.57 × 4.14 mm
L/W Ratio1.05
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
6.93 mm6.57 mm1.67 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522222348
Side View
Table 61.5%Crown 34.4°Girdle: THK-VTKPavilion 29.1°Culet: NoneDepth 63.0%

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: $656 AUD|Low: $320 AUD|High: $1,737 AUD|Avg: $826 AUD|+4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$320 AUD
Retailer 10$357 AUD
Retailer 6$481 AUD
Retailer 4$587 AUD
Retailer 1$656 AUD
Retailer 3$722 AUD
Retailer 8$766 AUD
Retailer 11$838 AUD
Retailer 7$914 AUD
Retailer 5$1,679 AUD
Retailer 9$1,694 AUD

44 data points across 11 retailers

14 retailers$320 AUD to $1,710 AUD

A
Cheapest Retailer
-
$320 AUD
$225 USD
Final sale: no returns
A
Retailer 2
-
$357 AUD
$251 USD
View
B+
Retailer 3
-
$481 AUD
$338 USD
View
A
Retailer 4
-
$587 AUD
€393 EUR
View
A
Retailer 5
-
$656 AUD
£363 GBP
View
A
Retailer 6
-
$722 AUD
$507 USD
View
A
Retailer 7
-
$766 AUD
$538 USD
View
A
Retailer 8
-
$766 AUD
View
B+
Retailer 9
-
$838 AUD
$589 USD
View
B+
Retailer 10
-
$914 AUD
$642 USD
View
B
Retailer 11
-
$1,224 AUD
$860 USD
View
B
Retailer 12
-
$1,679 AUD
£929 GBP
View
B
Retailer 13
-
$1,694 AUD
$1,190 USD
View
Most Expensive
B
Reve Diamonds
56E57FFEB · Oct 30
$1,710 AUD
$1,201 USD
View
13 more retailers have this diamond
Prices start from $320 AUDSave up to $1,390 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.

A
1.67ct Cushion
$320 AUD