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Cushion|Lab Grown|IGI

1.50ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG492129101

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG492129101

Diamond specifications and retailer prices

From HK$2,469 HKD
As of November 6, 2026
Save HK$17,125 HKD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$19,594 HKD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492129101 or 492129101. Listed at 13 retailers as of November 6, 2026, with prices from HK$2,469 to HK$19,594, a HK$17,125 spread on the same certified stone. Do Amore Diamonds lists it at HK$19,594. 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

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492129101
Dimensions7.22 × 6.40 × 4.20 mm
L/W Ratio1.13
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
7.22 mm6.40 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492129101
Side View
Table 61.5%Crown 32.3°Girdle: Slightly ThickPavilion 39.4°Culet: NoneDepth 65.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: HK$19,594 HKD|Low: HK$2,132 HKD|High: HK$19,594 HKD|Avg: HK$7,469 HKD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 4HK$2,469 HKD
Retailer 11HK$2,884 HKD
Retailer 12HK$3,668 HKD
Retailer 13HK$3,958 HKD
Retailer 7HK$5,329 HKD
Retailer 10HK$5,369 HKD
Retailer 2HK$6,058 HKD
Retailer 9HK$8,457 HKD
Retailer 3HK$10,996 HKD
Retailer 6HK$11,819 HKD
Retailer 8HK$12,077 HKD
Retailer 5HK$13,637 HKD
Do Amore DiamondsHK$19,594 HKD

43 data points across 13 retailers

13 retailersHK$2,469 HKD to HK$19,594 HKD

A
Cheapest Retailer
-
HK$2,469 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,884 HKD
View
A
Retailer 3
-
HK$3,668 HKD
View
A
Retailer 4
-
HK$3,958 HKD
View
B+
Retailer 5
-
HK$5,329 HKD
View
B+
Retailer 6
-
HK$5,369 HKD
View
B+
Retailer 7
-
HK$6,058 HKD
View
B
Retailer 8
-
HK$7,563 HKD
View
B
Retailer 9
-
HK$8,457 HKD
View
B
Retailer 10
-
HK$10,996 HKD
View
B
Retailer 11
-
HK$11,819 HKD
View
B
Retailer 12
-
HK$12,077 HKD
View
Most Expensive
B
Do Amore Diamonds
27-2F026FEA7 · Nov 6
HK$19,594 HKD
$2,500 USD
View
12 more retailers have this diamond
Prices start from HK$2,469 HKDSave up to HK$17,125 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
1.50ct Cushion
HK$2,469 HKD