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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 HK$3,319 HKD
$423 USD
As of October 30, 2026
Save HK$16,609 HKD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$19,928 HKD 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 30, 2026, with prices from HK$3,319 to HK$19,928, a HK$16,609 spread on the same certified stone. Brilliant Earth lists it at HK$19,928. 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: Oct 30
Current: HK$19,928 HKD|Low: HK$3,083 HKD|High: HK$22,909 HKD|Avg: HK$7,963 HKD|-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 14HK$3,319 HKD
Retailer 6HK$3,444 HKD
Retailer 8HK$3,789 HKD
Retailer 15HK$4,017 HKD
Retailer 5HK$4,629 HKD
Retailer 13HK$4,943 HKD
Retailer 10HK$5,511 HKD
Retailer 12HK$5,586 HKD
Retailer 4HK$5,884 HKD
Retailer 9HK$6,655 HKD
Retailer 3HK$8,318 HKD
Retailer 11HK$11,728 HKD
Retailer 2HK$14,378 HKD
Retailer 7HK$16,633 HKD
Brilliant EarthHK$19,928 HKD

20 data points across 15 retailers

15 retailersHK$3,319 HKD to HK$19,928 HKD

A
Cheapest Retailer
-
HK$3,319 HKD
$423 USD
Final sale: no returns
Retailer 2
-
HK$3,444 HKD
$439 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
HK$3,789 HKD
£380 GBP
View
A
Retailer 4
-
HK$4,017 HKD
View
A
Retailer 5
-
HK$4,629 HKD
$590 USD
View
A
Retailer 6
-
HK$4,943 HKD
$630 USD
View
A
Retailer 7
-
HK$5,511 HKD
€669 EUR
View
A
Retailer 8
-
HK$5,586 HKD
$712 USD
View
A
Retailer 9
-
HK$5,884 HKD
ZAR 12,116 ZAR
View
A
Retailer 10
-
HK$6,655 HKD
£668 GBP
View
A
Retailer 11
-
HK$8,318 HKD
A$1,631 AUD
View
B+
Retailer 12
-
HK$11,728 HKD
SGD 2,020 SGD
View
B+
Retailer 13
-
HK$14,378 HKD
£1,443 GBP
View
Retailer 14
-
HK$16,633 HKD
$2,120 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
21621026A · Oct 31
HK$19,928 HKD
$2,540 USD
View
14 more retailers have this diamond
Prices start from HK$3,319 HKDSave up to HK$16,609 HKD

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
HK$3,319 HKD