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Cushion|Lab Grown|IGI

1.77ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG671405868

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG671405868

Diamond specifications and retailer prices

From HK$4,119 HKD
$525 USD
As of October 29, 2026
Save HK$32,366 HKD (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$36,486 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.77ct lab-grown cushion diamond

This 1.77ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG671405868 or 671405868. Listed at 20 retailers as of October 29, 2026, with prices from HK$4,119 to HK$36,486, a HK$32,366 spread on the same certified stone. Brilliant Earth lists it at HK$36,486. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671405868
Dimensions8.08 × 6.39 × 4.49 mm
L/W Ratio1.26
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
8.08 mm6.39 mm1.77 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671405868
Side View
Table 61.0%Crown 34.5°Girdle: MED-STKPavilion 38.8°Culet: NoneDepth 70.3%

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 29
Current: HK$36,486 HKD|Low: HK$4,119 HKD|High: HK$36,486 HKD|Avg: HK$12,413 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
Retailer 16
Retailer 17
October 29, 2026
Retailer 11HK$4,119 HKD
Retailer 8HK$4,559 HKD
Retailer 7HK$6,356 HKD
Retailer 14HK$6,356 HKD
Retailer 16HK$6,583 HKD
Retailer 10HK$6,904 HKD
Retailer 2HK$7,542 HKD
Retailer 13HK$7,840 HKD
Retailer 15HK$11,095 HKD
Retailer 4HK$11,103 HKD
Retailer 6HK$14,147 HKD
Retailer 9HK$14,464 HKD
Retailer 3HK$15,220 HKD
Retailer 17HK$16,362 HKD
Retailer 12HK$16,851 HKD
Retailer 5HK$22,911 HKD
Brilliant EarthHK$36,486 HKD

35 data points across 17 retailers

20 retailersHK$4,119 HKD to HK$36,486 HKD

A
Cheapest Retailer
-
HK$4,119 HKD
$525 USD
Final sale: no returns
A
Retailer 2
-
HK$4,559 HKD
$581 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
HK$5,223 HKD
View
Price last confirmed 55 days ago
A
Retailer 4
-
HK$6,356 HKD
$810 USD
View
A
Retailer 5
-
HK$6,356 HKD
$810 USD
View
A
Retailer 6
-
HK$6,583 HKD
$839 USD
View
A
Retailer 7
-
HK$6,904 HKD
€838 EUR
View
A
Retailer 8
-
HK$7,542 HKD
£757 GBP
View
A
Retailer 9
-
HK$7,840 HKD
ZAR 16,141 ZAR
View
A
Retailer 10
-
HK$11,095 HKD
$1,414 USD
View
A
Retailer 11
-
HK$11,103 HKD
A$2,177 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
HK$14,147 HKD
$1,803 USD
View
B+
Retailer 13
-
HK$14,464 HKD
SGD 2,491 SGD
View
Price last confirmed 18 days ago
B+
Retailer 14
-
HK$15,220 HKD
$1,940 USD
View
B+
Retailer 15
-
HK$15,489 HKD
$1,974 USD
View
B+
Retailer 16
-
HK$16,362 HKD
$2,085 USD
View
B+
Retailer 17
-
HK$16,851 HKD
£1,691 GBP
View
B+
Retailer 18
-
HK$22,911 HKD
$2,920 USD
View
B
Retailer 19
-
HK$23,304 HKD
$2,970 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
12605322A · Oct 29
HK$36,486 HKD
$4,650 USD
View
19 more retailers have this diamond
Prices start from HK$4,119 HKDSave up to HK$32,366 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
1.77ct Cushion
HK$4,119 HKD