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Cushion|Lab Grown|IGI

1.45ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG838619306

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG838619306

Diamond specifications and retailer prices

From $751 NZD
$423 USD
As of November 1, 2026
Save $3,756 NZD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,507 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.45ct lab-grown cushion diamond

This 1.45ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG838619306 or 838619306. Listed at 15 retailers as of October 31, 2026, with prices from $751 to $4,507, a $3,756 spread on the same certified stone. Brilliant Earth lists it at $4,507. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838619306
Dimensions8.22 × 5.82 × 3.84 mm
L/W Ratio1.41
Girdle conditionFaceted
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
8.22 mm5.82 mm1.45 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838619306
Side View
Table 65.0%Crown 35.5°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 66.0%

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: Nov 1
Current: $4,507 NZD|Low: $697 NZD|High: $5,181 NZD|Avg: $1,802 NZD|-13.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 15$751 NZD
Retailer 7$779 NZD
Retailer 9$857 NZD
Retailer 3$908 NZD
Retailer 6$1,047 NZD
Retailer 14$1,118 NZD
Retailer 11$1,246 NZD
Retailer 13$1,263 NZD
Retailer 5$1,331 NZD
Retailer 10$1,505 NZD
Retailer 4$1,881 NZD
Retailer 12$2,652 NZD
Retailer 8$3,252 NZD
Retailer 2$3,779 NZD
Brilliant Earth$4,507 NZD

19 data points across 15 retailers

15 retailers$751 NZD to $4,507 NZD

A
Cheapest Retailer
-
$751 NZD
$423 USD
Final sale: no returns
Retailer 2
-
$779 NZD
$439 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$857 NZD
£380 GBP
View
A
Retailer 4
-
$908 NZD
HK$4,000 HKD
View
A
Retailer 5
-
$1,047 NZD
$590 USD
View
A
Retailer 6
-
$1,118 NZD
$630 USD
View
A
Retailer 7
-
$1,246 NZD
€669 EUR
View
A
Retailer 8
-
$1,263 NZD
$712 USD
View
A
Retailer 9
-
$1,331 NZD
ZAR 12,116 ZAR
View
A
Retailer 10
-
$1,505 NZD
£668 GBP
View
A
Retailer 11
-
$1,881 NZD
A$1,631 AUD
View
B+
Retailer 12
-
$2,652 NZD
SGD 2,020 SGD
View
B+
Retailer 13
-
$3,252 NZD
£1,443 GBP
View
Retailer 14
-
$3,779 NZD
$2,130 USD
View
Most Expensive
B
Brilliant Earth
21621026A · Oct 31
$4,507 NZD
$2,540 USD
View
14 more retailers have this diamond
Prices start from $751 NZDSave up to $3,756 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
1.45ct Cushion
$751 NZD