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Cushion|Lab Grown|IGI

1.50ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG623451210

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG623451210

Diamond specifications and retailer prices

From HK$2,362 HKD
$301 USD
As of November 1, 2026
Save HK$16,390 HKD (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$18,751 HKD at Do Amore Diamonds · As of November 1, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG623451210 or 623451210. Listed at 12 retailers as of November 1, 2026, with prices from HK$2,362 to HK$18,751, a HK$16,390 spread on the same certified stone. Do Amore Diamonds lists it at HK$18,751. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623451210
Dimensions6.90 × 6.68 × 4.23 mm
L/W Ratio1.03
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
6.90 mm6.68 mm1.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623451210
Side View
Table 60.0%Crown 36.9°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 63.3%

Caratlytics Score

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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$18,751 HKD|Low: HK$2,362 HKD|High: HK$20,477 HKD|Avg: HK$7,858 HKD|-8.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7HK$2,362 HKD
Retailer 6HK$2,620 HKD
Retailer 3HK$3,099 HKD
Retailer 5HK$3,238 HKD
Retailer 10HK$3,452 HKD
Retailer 11HK$3,499 HKD
Retailer 2HK$5,089 HKD
Retailer 8HK$11,082 HKD
Retailer 4HK$11,658 HKD
Retailer 9HK$15,613 HKD
Do Amore DiamondsHK$18,751 HKD

39 data points across 11 retailers

12 retailersHK$2,362 HKD to HK$18,751 HKD

A
Cheapest Retailer
-
HK$2,362 HKD
$301 USD
Final sale: no returns
Retailer 2
-
HK$2,620 HKD
$334 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
HK$3,099 HKD
$395 USD
View
Retailer 4
-
HK$3,238 HKD
£325 GBP
View
Price last confirmed 15 days ago
A
Retailer 5
-
HK$3,452 HKD
$440 USD
View
B+
Retailer 6
-
HK$3,499 HKD
$446 USD
View
A
Retailer 7
-
HK$3,884 HKD
$495 USD
View
B+
Retailer 8
-
HK$5,089 HKD
£511 GBP
View
B
Retailer 9
-
HK$10,595 HKD
$1,350 USD
View
B
Retailer 10
-
HK$11,082 HKD
$1,413 USD
View
B
Retailer 11
-
HK$11,658 HKD
£1,170 GBP
View
Most Expensive
B
Do Amore Diamonds
27-26C7668BD · Nov 1
HK$18,751 HKD
$2,390 USD
View
11 more retailers have this diamond
Prices start from HK$2,362 HKDSave up to HK$16,390 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$2,362 HKD