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Cushion|Lab Grown|IGI

1.50ct E FL Cushion Lab Grown Diamond

GD • E/FL • IGI LG818683531

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818683531

Diamond specifications and retailer prices

From HK$6,829 HKD
As of October 30, 2026
Save HK$20,702 HKD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$27,531 HKD at With Clarity · As of October 30, 2026
View at With Clarity

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 FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG818683531 or 818683531. Listed at 11 retailers as of October 30, 2026, with prices from HK$6,829 to HK$27,531, a HK$20,702 spread on the same certified stone. With Clarity lists it at HK$27,531. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
E
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818683531
Dimensions7.72 × 6.13 × 3.94 mm
L/W Ratio1.26
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
7.72 mm6.13 mm1.50 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818683531
Side View
Table 62.0%Crown 37.8°Girdle: MED-THKPavilion 37.8°Culet: NoneDepth 64.3%

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$6,829 HKD|High: HK$36,710 HKD|Avg: HK$16,909 HKD|-11.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
October 30, 2026
Retailer 6HK$6,829 HKD
Retailer 10HK$8,332 HKD
Retailer 9HK$8,709 HKD
Retailer 4HK$9,086 HKD
Retailer 3HK$9,232 HKD
Retailer 8HK$13,981 HKD
Retailer 7HK$19,070 HKD
Retailer 2HK$20,634 HKD
Retailer 5HK$25,747 HKD
Retailer 1HK$26,597 HKD
With ClarityHK$27,531 HKD

32 data points across 11 retailers

11 retailersHK$6,829 HKD to HK$27,531 HKD

A
Cheapest Retailer
-
HK$6,829 HKD
A
Retailer 2
-
HK$8,332 HKD
$1,062 USD
View
A
Retailer 3
-
HK$8,709 HKD
$1,110 USD
View
A
Retailer 4
-
HK$9,086 HKD
€1,103 EUR
View
A
Retailer 5
-
HK$9,232 HKD
£927 GBP
View
B
Retailer 6
-
HK$13,981 HKD
$1,782 USD
View
B
Retailer 7
-
HK$19,070 HKD
$2,431 USD
View
Retailer 8
-
HK$20,634 HKD
$2,630 USD
View
Price last confirmed 32 days ago
B
Retailer 9
-
HK$25,747 HKD
£2,584 GBP
View
B
Retailer 10
-
HK$26,597 HKD
$3,390 USD
View
Most Expensive
B
With Clarity
818683531 · Oct 30
HK$27,531 HKD
$3,509 USD
View
10 more retailers have this diamond
Prices start from HK$6,829 HKDSave up to HK$20,702 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$6,829 HKD