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Cushion|Lab Grown|IGI

4.20ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG805652143

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG805652143

Diamond specifications and retailer prices

From HK$16,262 HKD
£1,632 GBP
As of October 30, 2026
Save HK$51,796 HKD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$68,058 HKD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.2ct lab-grown cushion diamond

This 4.2ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG805652143 or 805652143. Listed at 18 retailers as of October 30, 2026, with prices from HK$16,262 to HK$68,058, a HK$51,796 spread on the same certified stone. Taylor and Hart lists it at HK$68,058. 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

4.20
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805652143
Dimensions11.28 × 7.92 × 5.69 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.28 mm7.92 mm4.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805652143
Side View
Table 66.0%Crown 38.8°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 71.8%

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 30
Current: HK$16,262 HKD|Low: HK$15,102 HKD|High: HK$71,639 HKD|Avg: HK$35,619 HKD|+1.8%
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
Retailer 14
Retailer 15
Retailer 16
Taylor and Hart
October 30, 2026
Retailer 1HK$16,262 HKD
Retailer 16HK$18,790 HKD
Retailer 12HK$19,850 HKD
Retailer 13HK$21,332 HKD
Retailer 14HK$22,495 HKD
Retailer 9HK$26,790 HKD
Retailer 5HK$29,264 HKD
Retailer 11HK$30,456 HKD
Retailer 7HK$32,003 HKD
Retailer 3HK$36,947 HKD
Retailer 8HK$38,926 HKD
Retailer 10HK$41,435 HKD
Retailer 15HK$45,623 HKD
Retailer 4HK$52,449 HKD
Retailer 6HK$55,709 HKD
Retailer 2HK$65,118 HKD
Taylor and HartHK$68,058 HKD

20 data points across 17 retailers

18 retailersHK$16,262 HKD to HK$68,058 HKD

A
Cheapest Retailer
-
HK$16,262 HKD
£1,632 GBP
A
Retailer 2
-
HK$18,790 HKD
$2,395 USD
View
Final sale: no returns
Retailer 3
-
HK$18,947 HKD
$2,415 USD
View
Price last confirmed 19 days ago
A
Retailer 4
-
HK$19,850 HKD
$2,530 USD
View
A
Retailer 5
-
HK$21,332 HKD
$2,719 USD
View
A
Retailer 6
-
HK$22,495 HKD
View
A
Retailer 7
-
HK$26,790 HKD
£2,689 GBP
View
A
Retailer 8
-
HK$29,264 HKD
$3,730 USD
View
A
Retailer 9
-
HK$30,456 HKD
€3,697 EUR
View
A
Retailer 10
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HK$32,003 HKD
$4,079 USD
View
A
Retailer 11
-
HK$36,947 HKD
£3,708 GBP
View
Retailer 12
-
HK$38,926 HKD
A$7,633 AUD
View
Price last confirmed 8 days ago
A
Retailer 13
-
HK$41,435 HKD
ZAR 85,319 ZAR
View
A
Retailer 14
-
HK$45,623 HKD
$5,815 USD
View
A
Retailer 15
-
HK$52,449 HKD
$6,685 USD
View
A
Retailer 16
-
HK$55,709 HKD
£5,591 GBP
View
B+
Retailer 17
-
HK$65,118 HKD
SGD 11,216 SGD
View
Most Expensive
B+
Taylor and Hart
AP5JNQW · Oct 30
HK$68,058 HKD
$8,675 USD
View
17 more retailers have this diamond
Prices start from HK$16,262 HKDSave up to HK$51,796 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
4.20ct Cushion
HK$16,262 HKD