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Cushion|Lab Grown|IGI

1.67ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG533220807

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG533220807

Diamond specifications and retailer prices

From $433 AUD
$304 USD
As of November 1, 2026
Save $1,831 AUD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,264 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG533220807 or 533220807. Listed at 14 retailers as of October 31, 2026, with prices from $433 to $2,264, a $1,831 spread on the same certified stone. Brilliant Earth lists it at $2,264. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG533220807
Dimensions6.98 × 6.95 × 4.56 mm
L/W Ratio1.00
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
6.98 mm6.95 mm1.67 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG533220807
Side View
Table 61.0%Crown 36.3°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 65.6%

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: Nov 1
Current: $2,264 AUD|Low: $427 AUD|High: $2,292 AUD|Avg: $1,010 AUD|-1.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 3$433 AUD
Retailer 12$478 AUD
Retailer 5$532 AUD
Retailer 11$641 AUD
Retailer 8$705 AUD
Retailer 6$834 AUD
Retailer 7$851 AUD
Retailer 4$860 AUD
Retailer 10$1,213 AUD
Retailer 9$1,530 AUD
Retailer 2$1,916 AUD
Brilliant Earth$2,264 AUD

41 data points across 12 retailers

14 retailers$433 AUD to $2,264 AUD

A
Cheapest Retailer
-
$433 AUD
$304 USD
Final sale: no returns
Retailer 2
-
$478 AUD
$336 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$532 AUD
£295 GBP
View
B+
Retailer 4
-
$641 AUD
$450 USD
View
A
Retailer 5
-
$705 AUD
$495 USD
View
A
Retailer 6
-
$834 AUD
£461 GBP
View
A
Retailer 7
-
$851 AUD
€569 EUR
View
B+
Retailer 8
-
$860 AUD
$604 USD
View
B+
Retailer 9
-
$866 AUD
$608 USD
View
B+
Retailer 10
-
$1,213 AUD
$852 USD
View
Retailer 11
-
$1,530 AUD
$1,075 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$1,610 AUD
$1,131 USD
View
B
Retailer 13
-
$1,916 AUD
£1,060 GBP
View
Most Expensive
B
Brilliant Earth
11226141A · Oct 31
$2,264 AUD
$1,590 USD
View
13 more retailers have this diamond
Prices start from $433 AUDSave up to $1,831 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
$433 AUD