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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 £169 GBP
$225 USD
As of October 28, 2026
Save £733 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £902 GBP 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 £169 to £902, a £733 spread on the same certified stone. Reve Diamonds lists it at £902. 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

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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: £345 GBP|Low: £169 GBP|High: £916 GBP|Avg: £436 GBP|+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£169 GBP
Retailer 10£188 GBP
Retailer 6£254 GBP
Retailer 4£310 GBP
Retailer 1£345 GBP
Retailer 3£381 GBP
Retailer 8£404 GBP
Retailer 11£442 GBP
Retailer 7£482 GBP
Retailer 5£886 GBP
Retailer 9£894 GBP

43 data points across 11 retailers

14 retailers£169 GBP to £902 GBP

A
Cheapest Retailer
-
£169 GBP
$225 USD
Final sale: no returns
A
Retailer 2
-
£188 GBP
$251 USD
View
B+
Retailer 3
-
£254 GBP
$338 USD
View
A
Retailer 4
-
£310 GBP
€393 EUR
View
A
Retailer 5
-
£345 GBP
View
A
Retailer 6
-
£381 GBP
$507 USD
View
A
Retailer 7
-
£404 GBP
$538 USD
View
A
Retailer 8
-
£404 GBP
A$828 AUD
View
B+
Retailer 9
-
£442 GBP
$589 USD
View
B+
Retailer 10
-
£482 GBP
$642 USD
View
B
Retailer 11
-
£646 GBP
$860 USD
View
B
Retailer 12
-
£886 GBP
View
B
Retailer 13
-
£894 GBP
$1,190 USD
View
Most Expensive
B
Reve Diamonds
56E57FFEB · Oct 28
£902 GBP
$1,201 USD
View
13 more retailers have this diamond
Prices start from £169 GBPSave up to £733 GBP

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
£169 GBP