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Cushion|Lab Grown|IGI

1.55ct E VS1 Cushion Lab Grown Diamond

GD • E/VS1 • IGI LG690504928

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG690504928

Diamond specifications and retailer prices

From HK$2,087 HKD
$266 USD
As of October 28, 2026
Save HK$7,360 HKD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$16,164 HKD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG690504928 or 690504928. Listed at 16 retailers as of October 28, 2026, with a 353% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.55
Carat
E
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG690504928
Dimensions6.88 × 6.76 × 4.50 mm
L/W Ratio1.02
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
6.88 mm6.76 mm1.55 ctE / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG690504928
Side View
Table 65.0%Crown 36.1°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 66.6%

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: Oct 28
Current: HK$16,164 HKD|Low: HK$2,087 HKD|High: HK$16,164 HKD|Avg: HK$5,416 HKD
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
October 29, 2026
Retailer 3HK$2,087 HKD
Retailer 10HK$2,323 HKD
Retailer 11HK$2,727 HKD
Retailer 4HK$3,915 HKD
Retailer 6HK$3,938 HKD
Retailer 8HK$3,988 HKD
Retailer 5HK$4,308 HKD
Retailer 2HK$4,380 HKD
Retailer 9HK$5,411 HKD
Retailer 12HK$6,018 HKD
Retailer 7HK$9,357 HKD
Retailer 13HK$9,447 HKD
Brilliant EarthHK$16,164 HKD

42 data points across 13 retailers

16 retailersHK$2,087 HKD to HK$9,447 HKD

A
Cheapest Retailer
-
HK$2,087 HKD
$266 USD
Final sale: no returns
A
Retailer 2
-
HK$2,323 HKD
$296 USD
View
A
Retailer 3
-
HK$2,727 HKD
£274 GBP
View
Price last confirmed 12 days ago
B+
Retailer 4
-
HK$3,915 HKD
$499 USD
View
A
Retailer 5
-
HK$3,938 HKD
€478 EUR
View
A
Retailer 6
-
HK$3,988 HKD
ZAR 8,212 ZAR
View
B+
Retailer 7
-
HK$4,237 HKD
$540 USD
View
B+
Retailer 8
-
HK$4,308 HKD
$549 USD
View
B+
Retailer 9
-
HK$4,380 HKD
£440 GBP
View
B+
Retailer 10
-
HK$5,411 HKD
A$1,061 AUD
View
B
Retailer 11
-
HK$6,018 HKD
$767 USD
View
B
Retailer 12
-
HK$7,117 HKD
$907 USD
View
B
Retailer 13
-
HK$7,872 HKD
$1,003 USD
View
B
Retailer 14
-
HK$9,357 HKD
£939 GBP
View
B
Retailer 15
-
HK$9,447 HKD
$1,204 USD
View
Most Expensive
C
Brilliant Earth
14979486A · Oct 16
HK$16,164 HKD
$2,060 USD
View
Price last confirmed 13 days ago
15 more retailers have this diamond
Prices start from HK$2,087 HKDSave up to HK$7,360 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
1.55ct Cushion
HK$2,087 HKD