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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 $225 USD
As of October 28, 2026
Save $976 USD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,201 USD at Reve Diamonds · As of October 28, 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 28, 2026, with prices from $225 to $1,201, a $976 spread on the same certified stone. Reve Diamonds lists it at $1,201. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $459 USD|Low: $225 USD|High: $1,220 USD|Avg: $580 USD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 2$225 USD
Retailer 10$251 USD
Retailer 6$338 USD
Retailer 4$413 USD
Retailer 1$459 USD
Retailer 3$507 USD
Retailer 8$538 USD
Retailer 11$589 USD
Retailer 7$642 USD
Retailer 5$1,180 USD
Retailer 9$1,190 USD

43 data points across 11 retailers

14 retailers$225 USD to $1,201 USD

A
Cheapest Retailer
-
$225 USD
Final sale: no returns
A
Retailer 2
-
$251 USD
View
B+
Retailer 3
-
$338 USD
View
A
Retailer 4
-
$413 USD
€393 EUR
View
A
Retailer 5
-
$459 USD
£362 GBP
View
A
Retailer 6
-
$507 USD
View
A
Retailer 7
-
$538 USD
View
A
Retailer 8
-
$538 USD
A$828 AUD
View
B+
Retailer 9
-
$589 USD
View
B+
Retailer 10
-
$642 USD
View
B
Retailer 11
-
$860 USD
View
B
Retailer 12
-
$1,180 USD
£929 GBP
View
B
Retailer 13
-
$1,190 USD
View
Most Expensive
B
Reve Diamonds
56E57FFEB · Oct 28
$1,201 USD
View
13 more retailers have this diamond
Prices start from $225 USDSave up to $976 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.

A
1.67ct Cushion
$225 USD