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Cushion|Lab Grown|IGI

0.51ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG816658270

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816658270

Diamond specifications and retailer prices

From HK$1,914 HKD
$244 USD
As of October 30, 2026
Save HK$7,896 HKD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$9,811 HKD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.51ct lab-grown cushion diamond

This 0.51ct lab-grown cushion sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816658270 or 816658270. Listed at 14 retailers as of October 30, 2026, with prices from HK$1,914 to HK$9,811, a HK$7,896 spread on the same certified stone. Reve Diamonds lists it at HK$9,811. 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

0.51
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.8°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816658270
Dimensions5.09 × 4.22 × 2.86 mm
L/W Ratio1.21
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
5.09 mm4.22 mm0.51 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG816658270
Side View
Table 62.0%Crown 33.8°Girdle: MED-THKPavilion 36.8°Culet: NoneDepth 67.8%

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$3,452 HKD|Low: HK$1,914 HKD|High: HK$11,769 HKD|Avg: HK$6,011 HKD|-24.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
October 30, 2026
Retailer 3HK$1,914 HKD
Retailer 11HK$2,158 HKD
Retailer 5HK$2,887 HKD
Retailer 4HK$3,060 HKD
Retailer 1HK$3,452 HKD
Retailer 10HK$4,233 HKD
Retailer 6HK$4,556 HKD
Retailer 13HK$4,930 HKD
Retailer 2HK$6,778 HKD
Retailer 12HK$8,867 HKD
Retailer 7HK$9,415 HKD
Retailer 9HK$9,415 HKD
Retailer 8HK$9,426 HKD
Reve DiamondsHK$9,811 HKD

24 data points across 14 retailers

14 retailersHK$1,914 HKD to HK$9,811 HKD

A
Cheapest Retailer
-
HK$1,914 HKD
$244 USD
Final sale: no returns
A
Retailer 2
-
HK$2,158 HKD
$275 USD
View
A
Retailer 3
-
HK$2,887 HKD
$368 USD
View
A
Retailer 4
-
HK$3,060 HKD
$390 USD
View
A
Retailer 5
-
HK$3,452 HKD
$440 USD
View
B+
Retailer 6
-
HK$4,233 HKD
ZAR 8,716 ZAR
View
B+
Retailer 7
-
HK$4,556 HKD
€553 EUR
View
B+
Retailer 8
-
HK$4,930 HKD
$628 USD
View
B
Retailer 9
-
HK$6,778 HKD
CA$1,200 CAD
View
B
Retailer 10
-
HK$8,867 HKD
$1,130 USD
View
B
Retailer 11
-
HK$9,415 HKD
$1,200 USD
View
B
Retailer 12
-
HK$9,415 HKD
$1,200 USD
View
B
Retailer 13
-
HK$9,426 HKD
£946 GBP
View
Most Expensive
B
Reve Diamonds
CCEBE8890 · Oct 30
HK$9,811 HKD
$1,250 USD
View
13 more retailers have this diamond
Prices start from HK$1,914 HKDSave up to HK$7,896 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
0.51ct Cushion
HK$1,914 HKD