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Cushion|Lab Grown|IGI

3.03ct E IF Cushion Lab Grown Diamond

GD • E/IF • IGI LG818640129

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG818640129

Diamond specifications and retailer prices

From HK$14,624 HKD
$1,864 USD
As of October 29, 2026
Save HK$63,754 HKD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$78,379 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.03ct lab-grown cushion diamond

This 3.03ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG818640129 or 818640129. Listed at 22 retailers as of October 29, 2026, with prices from HK$14,624 to HK$78,379, a HK$63,754 spread on the same certified stone. Brilliant Earth lists it at HK$78,379. 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

3.03
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818640129
Dimensions10.24 × 7.88 × 4.87 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeLarge
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
10.24 mm7.88 mm3.03 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818640129
Side View
Table 61.0%Crown 36°Girdle: STK-THKPavilion 39.9°Culet: LargeDepth 61.8%

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 29
Current: HK$78,379 HKD|Low: HK$14,624 HKD|High: HK$78,379 HKD|Avg: HK$34,350 HKD|+21.2%
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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 30, 2026
Retailer 22HK$14,624 HKD
Retailer 18HK$15,911 HKD
Retailer 2HK$16,382 HKD
Retailer 8HK$16,962 HKD
Retailer 21HK$16,962 HKD
Retailer 4HK$18,280 HKD
Retailer 5HK$19,583 HKD
Retailer 13HK$23,326 HKD
Retailer 6HK$24,259 HKD
Retailer 10HK$25,381 HKD
Retailer 3HK$26,024 HKD
Retailer 16HK$26,526 HKD
Retailer 20HK$31,799 HKD
Retailer 14HK$35,153 HKD
Retailer 19HK$38,375 HKD
Retailer 9HK$45,709 HKD
Retailer 17HK$48,714 HKD
Retailer 7HK$51,027 HKD
Retailer 12HK$56,676 HKD
Retailer 11HK$59,434 HKD
Retailer 15HK$60,528 HKD
Brilliant EarthHK$78,379 HKD

35 data points across 22 retailers

22 retailersHK$14,624 HKD to HK$78,379 HKD

A
Cheapest Retailer
-
HK$14,624 HKD
$1,864 USD
A
Retailer 2
-
HK$15,911 HKD
$2,028 USD
View
A
Retailer 3
-
HK$16,382 HKD
$2,088 USD
View
Final sale: no returns
Retailer 4
-
HK$16,962 HKD
$2,162 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
HK$16,962 HKD
$2,162 USD
View
A
Retailer 6
-
HK$18,280 HKD
$2,330 USD
View
A
Retailer 7
-
HK$19,583 HKD
View
A
Retailer 8
-
HK$23,326 HKD
£2,341 GBP
View
A
Retailer 9
-
HK$24,259 HKD
$3,092 USD
View
B+
Retailer 10
-
HK$25,381 HKD
$3,235 USD
View
B+
Retailer 11
-
HK$26,024 HKD
$3,317 USD
View
A
Retailer 12
-
HK$26,526 HKD
€3,220 EUR
View
B+
Retailer 13
-
HK$31,799 HKD
$4,053 USD
View
B+
Retailer 14
-
HK$35,153 HKD
£3,528 GBP
View
Retailer 15
-
HK$38,375 HKD
A$7,525 AUD
View
Price last confirmed 8 days ago
B+
Retailer 16
-
HK$45,709 HKD
$5,826 USD
View
B
Retailer 17
-
HK$48,714 HKD
£4,889 GBP
View
B
Retailer 18
-
HK$51,027 HKD
$6,504 USD
View
B
Retailer 19
-
HK$56,676 HKD
SGD 9,762 SGD
View
B
Retailer 20
-
HK$59,434 HKD
$7,575 USD
View
Retailer 21
-
HK$60,528 HKD
A$11,869 AUD
View
Price last confirmed 21 days ago
Most Expensive
C
Brilliant Earth
21191487A · Oct 30
HK$78,379 HKD
$9,990 USD
View
21 more retailers have this diamond
Prices start from HK$14,624 HKDSave up to HK$63,754 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
3.03ct Cushion
HK$14,624 HKD