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Cushion|Lab Grown|IGI

1.05ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG665409443

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG665409443

Diamond specifications and retailer prices

From HK$3,021 HKD
$385 USD
As of October 31, 2026
Save HK$9,624 HKD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$14,515 HKD at Brilliant Earth · As of October 12, 2026
View at Brilliant Earth

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665409443 or 665409443. Listed at 16 retailers as of October 31, 2026, with a 319% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665409443
Dimensions7.00 × 5.27 × 3.53 mm
L/W Ratio1.33
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
7.00 mm5.27 mm1.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665409443
Side View
Table 59.0%Crown 32.8°Girdle: STK-THKPavilion 37.3°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$14,515 HKD|Low: HK$2,824 HKD|High: HK$14,515 HKD|Avg: HK$7,338 HKD
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 10HK$3,021 HKD
Retailer 14HK$4,786 HKD
Retailer 3HK$5,029 HKD
Retailer 15HK$5,045 HKD
Retailer 5HK$5,123 HKD
Retailer 9HK$5,248 HKD
Retailer 13HK$5,423 HKD
Retailer 8HK$5,593 HKD
Retailer 12HK$7,665 HKD
Retailer 11HK$8,022 HKD
Retailer 4HK$8,199 HKD
Retailer 7HK$10,496 HKD
Retailer 6HK$12,479 HKD
Retailer 2HK$12,644 HKD
Brilliant EarthHK$14,515 HKD

39 data points across 15 retailers

16 retailersHK$3,021 HKD to HK$12,644 HKD

A
Cheapest Retailer
-
HK$3,021 HKD
$385 USD
Final sale: no returns
A
Retailer 2
-
HK$4,786 HKD
$610 USD
View
A
Retailer 3
-
HK$5,029 HKD
$641 USD
View
A
Retailer 4
-
HK$5,045 HKD
$643 USD
View
A
Retailer 5
-
HK$5,123 HKD
$653 USD
View
A
Retailer 6
-
HK$5,248 HKD
€637 EUR
View
A
Retailer 7
-
HK$5,423 HKD
ZAR 11,166 ZAR
View
A
Retailer 8
-
HK$5,593 HKD
£561 GBP
View
B+
Retailer 9
-
HK$7,665 HKD
A$1,503 AUD
View
B+
Retailer 10
-
HK$8,022 HKD
A$1,573 AUD
View
B+
Retailer 11
-
HK$8,199 HKD
$1,045 USD
View
B
Retailer 12
-
HK$10,496 HKD
$1,338 USD
View
B
Retailer 13
-
HK$11,933 HKD
$1,521 USD
View
B
Retailer 14
-
HK$12,479 HKD
$1,591 USD
View
B+
Retailer 15
-
HK$12,644 HKD
£1,269 GBP
View
Most Expensive
Brilliant Earth
14719488A · Oct 12
HK$14,515 HKD
$1,850 USD
View
Price last confirmed 19 days ago
15 more retailers have this diamond
Prices start from HK$3,021 HKDSave up to HK$9,624 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
1.05ct Cushion
HK$3,021 HKD