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Cushion|Lab Grown|IGI

1.51ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG541253650

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG541253650

Diamond specifications and retailer prices

From HK$1,983 HKD
As of November 6, 2026
Save HK$8,031 HKD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$10,014 HKD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG541253650 or 541253650. Listed at 13 retailers as of November 6, 2026, with prices from HK$1,983 to HK$10,014, a HK$8,031 spread on the same certified stone. Reve Diamonds lists it at HK$10,014. 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

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541253650
Dimensions8.09 × 5.78 × 3.97 mm
L/W Ratio1.40
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
8.09 mm5.78 mm1.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541253650
Side View
Table 61.0%Crown 32.8°Girdle: MED-THKPavilion 37.9°Culet: NoneDepth 68.7%

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$4,671 HKD|Low: HK$1,975 HKD|High: HK$10,014 HKD|Avg: HK$4,516 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 7, 2026
Retailer 3HK$1,983 HKD
Retailer 4HK$2,202 HKD
Retailer 6HK$2,814 HKD
Retailer 11HK$2,963 HKD
Retailer 8HK$3,519 HKD
Retailer 2HK$3,629 HKD
Retailer 7HK$4,060 HKD
Retailer 10HK$4,177 HKD
Retailer 1HK$4,671 HKD
Retailer 12HK$7,477 HKD
Retailer 5HK$7,939 HKD
Retailer 9HK$8,786 HKD
Reve DiamondsHK$10,014 HKD

40 data points across 13 retailers

13 retailersHK$1,983 HKD to HK$10,014 HKD

A
Cheapest Retailer
-
HK$1,983 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,202 HKD
View
A
Retailer 3
-
HK$2,814 HKD
View
B+
Retailer 4
-
HK$2,963 HKD
View
A
Retailer 5
-
HK$3,519 HKD
View
B+
Retailer 6
-
HK$3,629 HKD
View
B+
Retailer 7
-
HK$4,060 HKD
View
B+
Retailer 8
-
HK$4,177 HKD
View
B+
Retailer 9
-
HK$4,671 HKD
View
B
Retailer 10
-
HK$7,477 HKD
View
B
Retailer 11
-
HK$7,939 HKD
View
B
Retailer 12
-
HK$8,786 HKD
View
Most Expensive
B
Reve Diamonds
1DAE62A6A · Nov 6
HK$10,014 HKD
$1,278 USD
View
12 more retailers have this diamond
Prices start from HK$1,983 HKDSave up to HK$8,031 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$1,983 HKD