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Cushion|Lab Grown|IGI

4.21ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG784642485

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

Certificate IGI LG784642485

Diamond specifications and retailer prices

From HK$31,963 HKD
$4,074 USD
As of November 1, 2026
Save HK$167,474 HKD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$199,438 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.21ct lab-grown cushion diamond

This 4.21ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG784642485 or 784642485. Listed at 11 retailers as of October 31, 2026, with prices from HK$31,963 to HK$199,438, a HK$167,474 spread on the same certified stone. Do Amore Diamonds lists it at HK$199,438. 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

4.21
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784642485
Dimensions9.24 × 9.21 × 6.34 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
9.24 mm9.21 mm4.21 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784642485
Side View
Table 61.0%Crown 37.2°Girdle: STK-THKPavilion 39°Culet: NoneDepth 68.8%

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: Nov 1
Current: HK$199,438 HKD|Low: HK$31,963 HKD|High: HK$255,534 HKD|Avg: HK$84,178 HKD|-22.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5HK$31,963 HKD
Retailer 8HK$34,835 HKD
Retailer 7HK$36,459 HKD
Retailer 10HK$44,140 HKD
Retailer 3HK$52,127 HKD
Retailer 4HK$63,638 HKD
Retailer 9HK$64,021 HKD
Retailer 2HK$79,513 HKD
Retailer 6HK$102,386 HKD
Do Amore DiamondsHK$199,438 HKD

29 data points across 10 retailers

11 retailersHK$31,963 HKD to HK$199,438 HKD

A
Cheapest Retailer
-
HK$31,963 HKD
$4,074 USD
A
Retailer 2
-
HK$34,835 HKD
$4,440 USD
View
A
Retailer 3
-
HK$36,459 HKD
$4,647 USD
View
A
Retailer 4
-
HK$44,140 HKD
$5,626 USD
View
Final sale: no returns
A
Retailer 5
-
HK$52,127 HKD
$6,644 USD
View
A
Retailer 6
-
HK$63,638 HKD
€7,725 EUR
View
Retailer 7
-
HK$64,021 HKD
$8,160 USD
View
Price last confirmed 13 days ago
B+
Retailer 8
-
HK$79,513 HKD
£7,980 GBP
View
B+
Retailer 9
-
HK$102,386 HKD
$13,050 USD
View
B
Retailer 10
-
HK$157,094 HKD
$20,023 USD
View
Most Expensive
B
Do Amore Diamonds
27-36DC3358C · Oct 31
HK$199,438 HKD
$25,420 USD
View
10 more retailers have this diamond
Prices start from HK$31,963 HKDSave up to HK$167,474 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
4.21ct Cushion
HK$31,963 HKD