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Cushion|Lab Grown|IGI

3.09ct E VS2 Cushion Lab Grown Diamond

ID • E/VS2 • IGI LG657418549

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG657418549

Diamond specifications and retailer prices

From HK$5,651 HKD
£567 GBP
As of October 30, 2026
Save HK$36,641 HKD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$42,292 HKD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG657418549 or 657418549. Listed at 13 retailers as of October 28, 2026, with prices from HK$5,651 to HK$42,292, a HK$36,641 spread on the same certified stone. Brilliant Earth lists it at HK$42,292. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
E
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657418549
Dimensions8.58 × 8.45 × 5.53 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.58 mm8.45 mm3.09 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657418549
Side View
Table 61.0%Crown 35.8°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 65.4%

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 30
Current: HK$42,292 HKD|Low: HK$4,057 HKD|High: HK$43,548 HKD|Avg: HK$13,337 HKD|-2.9%
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 30, 2026
Retailer 4HK$4,708 HKD
Retailer 2HK$5,651 HKD
Retailer 10HK$6,591 HKD
Retailer 7HK$6,805 HKD
Retailer 3HK$7,336 HKD
Retailer 11HK$7,627 HKD
Retailer 6HK$7,822 HKD
Retailer 12HK$9,698 HKD
Retailer 13HK$15,357 HKD
Retailer 5HK$17,623 HKD
Retailer 9HK$18,596 HKD
Retailer 8HK$19,681 HKD
Brilliant EarthHK$42,292 HKD

34 data points across 13 retailers

13 retailersHK$5,651 HKD to HK$42,292 HKD

Retailer 1
-
HK$4,708 HKD
$600 USD
Price last confirmed 19 days ago
A
Retailer 2
-
HK$5,651 HKD
£567 GBP
View
A
Retailer 3
-
HK$6,591 HKD
$840 USD
View
A
Retailer 4
-
HK$6,805 HKD
€826 EUR
View
A
Retailer 5
-
HK$7,336 HKD
$935 USD
View
A
Retailer 6
-
HK$7,627 HKD
$972 USD
View
A
Retailer 7
-
HK$7,822 HKD
£785 GBP
View
A
Retailer 8
-
HK$9,698 HKD
$1,236 USD
View
Retailer 9
-
HK$15,357 HKD
$1,957 USD
View
Price last confirmed 11 days ago
B
Retailer 10
-
HK$17,623 HKD
$2,246 USD
View
Retailer 11
-
HK$18,596 HKD
$2,370 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
HK$19,681 HKD
£1,975 GBP
View
Most Expensive
B
Brilliant Earth
11925065A · Oct 28
HK$42,292 HKD
$5,390 USD
View
12 more retailers have this diamond
Prices start from HK$5,651 HKDSave up to HK$36,641 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
3.09ct Cushion
HK$5,651 HKD