CaratHunter
Plans
Cushion|Lab Grown|IGI

1.01ct E SI2 Cushion Lab Grown Diamond

ID • E/SI2 • IGI LG665409447

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG665409447

Diamond specifications and retailer prices

From HK$3,844 HKD
$490 USD
As of October 28, 2026
Save HK$5,745 HKD (60%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$9,589 HKD at Yorxs · As of October 29, 2026
View at Yorxs

About this 1.01ct lab-grown cushion diamond

This 1.01ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG665409447 or 665409447. Listed at 9 retailers as of October 28, 2026, with prices from HK$3,844 to HK$9,589, a HK$5,745 spread on the same certified stone. Yorxs lists it at HK$9,589. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665409447
Dimensions6.19 × 5.97 × 3.90 mm
L/W Ratio1.04
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
6.19 mm5.97 mm1.01 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665409447
Side View
Table 59.0%Crown 35.7°Girdle: MED-THKPavilion 41.3°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: HK$8,487 HKD|Low: HK$3,538 HKD|High: HK$23,744 HKD|Avg: HK$8,822 HKD|+3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Yorxs
October 30, 2026
Retailer 4HK$3,844 HKD
Retailer 3HK$5,421 HKD
Retailer 6HK$5,437 HKD
Retailer 5HK$6,967 HKD
Retailer 8HK$7,767 HKD
Retailer 7HK$8,379 HKD
Retailer 1HK$8,487 HKD
YorxsHK$9,589 HKD
Retailer 2HK$23,744 HKD

42 data points across 9 retailers

9 retailersHK$3,844 HKD to HK$9,589 HKD

B+
Cheapest Retailer
-
HK$3,844 HKD
$490 USD
B
Retailer 2
-
HK$5,421 HKD
$691 USD
View
Final sale: no returns
Retailer 3
-
HK$5,437 HKD
$693 USD
View
Price last confirmed 14 days ago
B
Retailer 4
-
HK$6,967 HKD
$888 USD
View
B
Retailer 5
-
HK$7,767 HKD
$990 USD
View
B
Retailer 6
-
HK$8,379 HKD
$1,068 USD
View
B
Retailer 7
-
HK$8,487 HKD
£852 GBP
View
Most Expensive
B
Yorxs
611344275 · Oct 29
HK$9,589 HKD
€1,164 EUR
View
7 more retailers have this diamond
Prices start from HK$3,844 HKDSave up to HK$5,745 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.

B+
1.01ct Cushion
HK$3,844 HKD