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Cushion|Lab Grown|IGI

1.66ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG729569332

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG729569332

Diamond specifications and retailer prices

From HK$5,523 HKD
$704 USD
As of November 1, 2026
Save HK$20,289 HKD (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$25,812 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.66ct lab-grown cushion diamond

This 1.66ct 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 LG729569332 or 729569332. Listed at 20 retailers as of October 31, 2026, with prices from HK$5,523 to HK$25,812, a HK$20,289 spread on the same certified stone. Brilliant Earth lists it at HK$25,812. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729569332
Dimensions7.93 × 6.21 × 4.31 mm
L/W Ratio1.28
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
7.93 mm6.21 mm1.66 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729569332
Side View
Table 58.0%Crown 35.8°Girdle: MED-VTKPavilion 40°Culet: NoneDepth 69.4%

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: Nov 1
Current: HK$25,812 HKD|Low: HK$5,523 HKD|High: HK$26,362 HKD|Avg: HK$13,617 HKD|-2.1%
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 2, 2026
Retailer 10HK$5,523 HKD
Retailer 4HK$5,735 HKD
Retailer 15HK$7,061 HKD
Retailer 7HK$7,704 HKD
Retailer 9HK$9,309 HKD
Retailer 2HK$9,528 HKD
Retailer 13HK$10,533 HKD
Retailer 11HK$13,040 HKD
Retailer 12HK$14,274 HKD
Retailer 14HK$14,868 HKD
Retailer 6HK$17,816 HKD
Retailer 3HK$18,477 HKD
Retailer 5HK$19,345 HKD
Retailer 8HK$24,153 HKD
Brilliant EarthHK$25,812 HKD

44 data points across 15 retailers

20 retailersHK$5,523 HKD to HK$25,812 HKD

A
Cheapest Retailer
-
HK$5,523 HKD
$704 USD
Final sale: no returns
Retailer 2
-
HK$5,735 HKD
$731 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
HK$6,728 HKD
View
A
Retailer 4
-
HK$7,061 HKD
$900 USD
View
A
Retailer 5
-
HK$7,704 HKD
$982 USD
View
A
Retailer 6
-
HK$8,222 HKD
$1,048 USD
View
A
Retailer 7
-
HK$9,309 HKD
€1,130 EUR
View
A
Retailer 8
-
HK$9,528 HKD
£956 GBP
View
A
Retailer 9
-
HK$10,333 HKD
$1,317 USD
View
A
Retailer 10
-
HK$10,533 HKD
ZAR 21,689 ZAR
View
B+
Retailer 11
-
HK$13,040 HKD
$1,662 USD
View
B+
Retailer 12
-
HK$14,274 HKD
A$2,799 AUD
View
Retailer 13
-
HK$14,868 HKD
$1,895 USD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
HK$17,816 HKD
£1,788 GBP
View
B+
Retailer 15
-
HK$18,477 HKD
$2,355 USD
View
B+
Retailer 16
-
HK$19,345 HKD
SGD 3,332 SGD
View
B
Retailer 17
-
HK$19,788 HKD
$2,522 USD
View
B
Retailer 18
-
HK$20,129 HKD
$2,566 USD
View
B
Retailer 19
-
HK$24,153 HKD
£2,424 GBP
View
Most Expensive
B
Brilliant Earth
15964172A · Oct 31
HK$25,812 HKD
$3,290 USD
View
19 more retailers have this diamond
Prices start from HK$5,523 HKDSave up to HK$20,289 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
1.66ct Cushion
HK$5,523 HKD