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Cushion|Lab Grown|IGI

4.20ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG803623561

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG803623561

Diamond specifications and retailer prices

From HK$37,393 HKD
$4,766 USD
As of October 31, 2026
Save HK$230,381 HKD (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$267,774 HKD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 4.2ct lab-grown cushion diamond

This 4.2ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG803623561 or 803623561. Listed at 16 retailers as of October 31, 2026, with prices from HK$37,393 to HK$267,774, a HK$230,381 spread on the same certified stone. Do Amore Diamonds lists it at HK$267,774. 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
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803623561
Dimensions9.40 × 9.21 × 6.25 mm
L/W Ratio1.02
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
9.40 mm9.21 mm4.20 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803623561
Side View
Table 61.0%Crown 36°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 67.9%

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 31
Current: HK$267,774 HKD|Low: HK$37,393 HKD|High: HK$289,585 HKD|Avg: HK$103,382 HKD|-7.5%
Do Amore Diamonds
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
November 1, 2026
Retailer 16HK$37,393 HKD
Retailer 4HK$43,583 HKD
Retailer 7HK$45,144 HKD
Retailer 15HK$45,348 HKD
Retailer 9HK$49,671 HKD
Retailer 11HK$63,940 HKD
Retailer 17HK$65,127 HKD
Retailer 6HK$70,785 HKD
Retailer 12HK$77,956 HKD
Retailer 2HK$101,394 HKD
Retailer 14HK$106,055 HKD
Retailer 10HK$112,782 HKD
Retailer 18HK$124,256 HKD
Retailer 13HK$137,049 HKD
Retailer 8HK$156,726 HKD
Retailer 3HK$176,504 HKD
Retailer 5HK$234,124 HKD
Do Amore DiamondsHK$267,774 HKD

37 data points across 18 retailers

16 retailersHK$37,393 HKD to HK$267,774 HKD

A
Cheapest Retailer
-
HK$37,393 HKD
$4,766 USD
A
Retailer 2
-
HK$43,583 HKD
$5,555 USD
View
Final sale: no returns
Retailer 3
-
HK$45,144 HKD
$5,754 USD
View
Price last confirmed 16 days ago
A
Retailer 4
-
HK$45,348 HKD
$5,780 USD
View
A
Retailer 5
-
HK$63,940 HKD
£6,417 GBP
View
A
Retailer 6
-
HK$65,127 HKD
$8,301 USD
View
B+
Retailer 7
-
HK$70,785 HKD
£7,104 GBP
View
B+
Retailer 8
-
HK$77,956 HKD
€9,463 EUR
View
B+
Retailer 9
-
HK$101,394 HKD
£10,176 GBP
View
B+
Retailer 10
-
HK$106,055 HKD
ZAR 218,377 ZAR
View
B+
Retailer 11
-
HK$124,256 HKD
$15,837 USD
View
B+
Retailer 12
-
HK$137,049 HKD
$17,468 USD
View
B
Retailer 13
-
HK$156,726 HKD
$19,976 USD
View
B
Retailer 14
-
HK$176,504 HKD
$22,497 USD
View
B
Retailer 15
-
HK$234,124 HKD
$29,841 USD
View
Most Expensive
B
Do Amore Diamonds
27-81A9E32CB · Nov 1
HK$267,774 HKD
$34,130 USD
View
15 more retailers have this diamond
Prices start from HK$37,393 HKDSave up to HK$230,381 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$37,393 HKD