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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 $539 NZD
$304 USD
As of November 1, 2026
Save $2,282 NZD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,821 NZD 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 $539 to $2,821, a $2,282 spread on the same certified stone. Brilliant Earth lists it at $2,821. 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: $2,821 NZD|Low: $532 NZD|High: $2,857 NZD|Avg: $1,259 NZD|-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 2, 2026
Retailer 3$539 NZD
Retailer 12$596 NZD
Retailer 2$664 NZD
Retailer 11$798 NZD
Retailer 8$878 NZD
Retailer 5$1,048 NZD
Retailer 7$1,060 NZD
Retailer 4$1,072 NZD
Retailer 10$1,512 NZD
Retailer 9$1,907 NZD
Retailer 6$2,389 NZD
Brilliant Earth$2,821 NZD

42 data points across 12 retailers

14 retailers$539 NZD to $2,821 NZD

A
Cheapest Retailer
-
$539 NZD
$304 USD
Final sale: no returns
Retailer 2
-
$596 NZD
$336 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$664 NZD
£295 GBP
View
B+
Retailer 4
-
$798 NZD
$450 USD
View
A
Retailer 5
-
$878 NZD
$495 USD
View
A
Retailer 6
-
$1,048 NZD
£465 GBP
View
A
Retailer 7
-
$1,060 NZD
€569 EUR
View
B+
Retailer 8
-
$1,072 NZD
$604 USD
View
B+
Retailer 9
-
$1,079 NZD
$608 USD
View
B+
Retailer 10
-
$1,512 NZD
$852 USD
View
Retailer 11
-
$1,907 NZD
$1,075 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$2,007 NZD
$1,131 USD
View
B
Retailer 13
-
$2,389 NZD
£1,060 GBP
View
Most Expensive
B
Brilliant Earth
11226141A · Oct 31
$2,821 NZD
$1,590 USD
View
13 more retailers have this diamond
Prices start from $539 NZDSave up to $2,282 NZD

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
$539 NZD