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 $423 USD
As of October 30, 2026
Save $2,117 USD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,540 USD at Brilliant Earth · As of October 30, 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 30, 2026, with prices from $423 to $2,540, a $2,117 spread on the same certified stone. Brilliant Earth lists it at $2,540. 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
Color
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+
Exceptional
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 30
Current: $2,540 USD|Low: $393 USD|High: $2,920 USD|Avg: $997 USD|-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
October 30, 2026
Retailer 9$423 USD
Retailer 6$439 USD
Retailer 10$484 USD
Retailer 12$512 USD
Retailer 5$590 USD
Retailer 8$630 USD
Retailer 13$708 USD
Retailer 2$712 USD
Retailer 3$750 USD
Retailer 11$848 USD
Retailer 14$1,060 USD
Retailer 4$1,396 USD
Retailer 15$1,715 USD
Retailer 7$2,120 USD
Brilliant Earth$2,540 USD

19 data points across 15 retailers

15 retailers$423 USD to $2,540 USD

A
Cheapest Retailer
-
$423 USD
Final sale: no returns
A+
Retailer 2
-
$439 USD
View
A
Retailer 3
-
$484 USD
£381 GBP
View
A
Retailer 4
-
$512 USD
HK$4,000 HKD
View
A
Retailer 5
-
$590 USD
View
A
Retailer 6
-
$630 USD
View
A
Retailer 7
-
$708 USD
€674 EUR
View
A
Retailer 8
-
$712 USD
View
A
Retailer 9
-
$750 USD
ZAR 12,116 ZAR
View
A
Retailer 10
-
$848 USD
£668 GBP
View
A
Retailer 11
-
$1,060 USD
A$1,631 AUD
View
B+
Retailer 12
-
$1,396 USD
SGD 1,886 SGD
View
B+
Retailer 13
-
$1,715 USD
£1,350 GBP
View
Retailer 14
-
$2,120 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21621026A · Oct 30
$2,540 USD
View
14 more retailers have this diamond
Prices start from $423 USDSave up to $2,117 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+
1.45ct Cushion
$423 USD