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Cushion|Lab Grown|IGI

1.65ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG836620508

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836620508

Diamond specifications and retailer prices

From HK$5,021 HKD
$640 USD
As of October 30, 2026
Save HK$21,576 HKD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$26,597 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.65ct lab-grown cushion diamond

This 1.65ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836620508 or 836620508. Listed at 15 retailers as of October 30, 2026, with prices from HK$5,021 to HK$26,597, a HK$21,576 spread on the same certified stone. Brilliant Earth lists it at HK$26,597. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.65
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620508
Dimensions8.80 × 5.94 × 4.01 mm
L/W Ratio1.48
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
8.80 mm5.94 mm1.65 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620508
Side View
Table 63.0%Crown 32.6°Girdle: MED-THKPavilion 34.7°Culet: NoneDepth 67.5%

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 30
Current: HK$26,597 HKD|Low: HK$5,021 HKD|High: HK$33,893 HKD|Avg: HK$14,480 HKD|-21.5%
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
October 31, 2026
Retailer 15HK$5,021 HKD
Retailer 7HK$5,931 HKD
Retailer 10HK$6,512 HKD
Retailer 4HK$8,450 HKD
Retailer 9HK$8,561 HKD
Retailer 8HK$8,815 HKD
Retailer 12HK$9,428 HKD
Retailer 13HK$10,050 HKD
Retailer 5HK$12,349 HKD
Retailer 3HK$16,022 HKD
Retailer 2HK$17,582 HKD
Retailer 14HK$17,782 HKD
Retailer 6HK$23,929 HKD
Retailer 11HK$23,944 HKD
Brilliant EarthHK$26,597 HKD

31 data points across 15 retailers

15 retailersHK$5,021 HKD to HK$26,597 HKD

A
Cheapest Retailer
-
HK$5,021 HKD
$640 USD
Final sale: no returns
Retailer 2
-
HK$5,931 HKD
$756 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
HK$6,512 HKD
$830 USD
View
A
Retailer 4
-
HK$8,450 HKD
$1,077 USD
View
A
Retailer 5
-
HK$8,561 HKD
£859 GBP
View
A
Retailer 6
-
HK$8,815 HKD
€1,070 EUR
View
A
Retailer 7
-
HK$9,428 HKD
ZAR 19,413 ZAR
View
A
Retailer 8
-
HK$10,050 HKD
$1,281 USD
View
A
Retailer 9
-
HK$12,349 HKD
$1,574 USD
View
B+
Retailer 10
-
HK$16,022 HKD
£1,608 GBP
View
B+
Retailer 11
-
HK$17,582 HKD
$2,241 USD
View
B+
Retailer 12
-
HK$17,782 HKD
$2,266 USD
View
Retailer 13
-
HK$23,929 HKD
$3,050 USD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
HK$23,944 HKD
£2,403 GBP
View
Most Expensive
B
Brilliant Earth
21589063A · Oct 30
HK$26,597 HKD
$3,390 USD
View
14 more retailers have this diamond
Prices start from HK$5,021 HKDSave up to HK$21,576 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
1.65ct Cushion
HK$5,021 HKD