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Cushion|Lab Grown|IGI

1.45ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG739546475

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG739546475

Diamond specifications and retailer prices

From HK$3,154 HKD
$402 USD
As of October 30, 2026
Save HK$16,146 HKD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$19,300 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 LG739546475 or 739546475. Listed at 19 retailers as of October 30, 2026, with prices from HK$3,154 to HK$19,300, a HK$16,146 spread on the same certified stone. Brilliant Earth lists it at HK$19,300. 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 angle36.5°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739546475
Dimensions7.67 × 6.04 × 3.99 mm
L/W Ratio1.27
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
7.67 mm6.04 mm1.45 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739546475
Side View
Table 61.0%Crown 36.5°Girdle: STK-THKPavilion 35.1°Culet: NoneDepth 66.1%

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$19,300 HKD|Low: HK$3,154 HKD|High: HK$22,753 HKD|Avg: HK$9,508 HKD|-15.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 9HK$3,154 HKD
Retailer 12HK$4,668 HKD
Retailer 13HK$4,943 HKD
Retailer 5HK$5,476 HKD
Retailer 6HK$5,659 HKD
Retailer 8HK$6,015 HKD
Retailer 2HK$6,308 HKD
Retailer 7HK$8,501 HKD
Retailer 4HK$11,728 HKD
Retailer 11HK$13,750 HKD
Retailer 10HK$16,476 HKD
Retailer 3HK$17,278 HKD
Brilliant EarthHK$19,300 HKD

39 data points across 13 retailers

19 retailersHK$3,154 HKD to HK$19,300 HKD

A
Cheapest Retailer
-
HK$3,154 HKD
$402 USD
Final sale: no returns
A
Retailer 2
-
HK$4,017 HKD
View
A
Retailer 3
-
HK$4,668 HKD
$595 USD
View
A
Retailer 4
-
HK$4,943 HKD
$630 USD
View
A
Retailer 5
-
HK$5,476 HKD
$698 USD
View
A
Retailer 6
-
HK$5,659 HKD
€687 EUR
View
A
Retailer 7
-
HK$6,015 HKD
ZAR 12,386 ZAR
View
A
Retailer 8
-
HK$6,308 HKD
£633 GBP
View
A
Retailer 9
-
HK$8,009 HKD
$1,021 USD
View
A
Retailer 10
-
HK$8,501 HKD
A$1,667 AUD
View
A
Retailer 11
-
HK$8,615 HKD
$1,098 USD
View
B+
Retailer 12
-
HK$10,074 HKD
$1,284 USD
View
B+
Retailer 13
-
HK$11,572 HKD
$1,475 USD
View
B+
Retailer 14
-
HK$11,728 HKD
SGD 2,020 SGD
View
B+
Retailer 15
-
HK$13,366 HKD
$1,704 USD
View
B+
Retailer 16
-
HK$13,750 HKD
£1,380 GBP
View
Retailer 17
-
HK$16,476 HKD
$2,100 USD
View
Price last confirmed 13 days ago
Retailer 18
-
HK$17,278 HKD
A$3,388 AUD
View
Price last confirmed 27 days ago
Most Expensive
B
Brilliant Earth
16164200A · Oct 31
HK$19,300 HKD
$2,460 USD
View
18 more retailers have this diamond
Prices start from HK$3,154 HKDSave up to HK$16,146 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$3,154 HKD