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Cushion|Lab Grown|IGI

1.51ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG836617524

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836617524

Diamond specifications and retailer prices

From HK$4,629 HKD
$590 USD
As of October 31, 2026
Save HK$14,515 HKD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$19,144 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836617524 or 836617524. Listed at 18 retailers as of October 31, 2026, with prices from HK$4,629 to HK$19,144, a HK$14,515 spread on the same certified stone. Brilliant Earth lists it at HK$19,144. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617524
Dimensions8.56 × 5.78 × 3.84 mm
L/W Ratio1.48
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
8.56 mm5.78 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617524
Side View
Table 62.0%Crown 34.2°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 66.4%

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 31
Current: HK$19,144 HKD|Low: HK$3,436 HKD|High: HK$22,674 HKD|Avg: HK$10,086 HKD|-15.6%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 6HK$3,436 HKD
Retailer 3HK$3,554 HKD
Retailer 13HK$4,629 HKD
Retailer 7HK$5,429 HKD
Retailer 5HK$5,508 HKD
Retailer 17HK$5,901 HKD
Retailer 11HK$6,179 HKD
Retailer 12HK$6,846 HKD
Retailer 16HK$7,971 HKD
Retailer 4HK$8,112 HKD
Retailer 14HK$8,520 HKD
Retailer 8HK$11,364 HKD
Retailer 15HK$11,996 HKD
Retailer 2HK$13,422 HKD
Retailer 10HK$14,236 HKD
Retailer 18HK$18,790 HKD
Retailer 9HK$18,877 HKD
Brilliant EarthHK$19,144 HKD

23 data points across 18 retailers

18 retailersHK$4,629 HKD to HK$19,144 HKD

Retailer 1
-
HK$3,436 HKD
$438 USD
Price last confirmed 7 days ago
Retailer 2
-
HK$3,554 HKD
£357 GBP
View
Price last confirmed 15 days ago
A
Retailer 3
-
HK$4,629 HKD
$590 USD
View
A
Retailer 4
-
HK$5,429 HKD
$692 USD
View
A
Retailer 5
-
HK$5,508 HKD
$702 USD
View
A
Retailer 6
-
HK$5,901 HKD
ZAR 12,150 ZAR
View
A
Retailer 7
-
HK$6,179 HKD
£620 GBP
View
A
Retailer 8
-
HK$6,846 HKD
€831 EUR
View
A
Retailer 9
-
HK$7,971 HKD
A$1,563 AUD
View
A
Retailer 10
-
HK$8,112 HKD
$1,034 USD
View
A
Retailer 11
-
HK$8,520 HKD
$1,086 USD
View
B+
Retailer 12
-
HK$11,364 HKD
$1,448 USD
View
B+
Retailer 13
-
HK$11,996 HKD
$1,529 USD
View
B+
Retailer 14
-
HK$13,422 HKD
£1,347 GBP
View
B+
Retailer 15
-
HK$14,236 HKD
SGD 2,452 SGD
View
Retailer 16
-
HK$18,790 HKD
$2,395 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
HK$18,877 HKD
$2,406 USD
View
Most Expensive
B+
Brilliant Earth
21738552A · Oct 31
HK$19,144 HKD
$2,440 USD
View
17 more retailers have this diamond
Prices start from HK$4,629 HKDSave up to HK$14,515 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
1.51ct Cushion
HK$4,629 HKD