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Princess|Lab Grown|IGI

4.20ct D FL Princess Lab Grown Diamond

ID • D/FL • IGI LG780662054

Shape and cutting style on the report: Princess cut

Certificate IGI LG780662054

Diamond specifications and retailer prices

From HK$41,457 HKD
$5,284 USD
As of October 30, 2026
Save HK$243,813 HKD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$285,270 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.2ct lab-grown princess diamond

This 4.2ct lab-grown princess 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 LG780662054 or 780662054. Listed at 15 retailers as of October 30, 2026, with prices from HK$41,457 to HK$285,270, a HK$243,813 spread on the same certified stone. Do Amore Diamonds lists it at HK$285,270. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662054
Dimensions9.00 × 8.80 × 6.16 mm
L/W Ratio1.02
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
9.00 mm8.80 mm4.20 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662054
Side View
Table 66.0%Crown 42.1°Girdle: MED-STKPavilion 37.3°Culet: NoneDepth 70.0%

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$285,270 HKD|Low: HK$41,457 HKD|High: HK$346,152 HKD|Avg: HK$99,487 HKD|-17.6%
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
October 31, 2026
Retailer 11HK$41,457 HKD
Retailer 9HK$43,426 HKD
Retailer 2HK$43,449 HKD
Retailer 12HK$44,218 HKD
Retailer 13HK$48,212 HKD
Retailer 8HK$59,227 HKD
Retailer 4HK$63,017 HKD
Retailer 7HK$65,370 HKD
Retailer 5HK$73,397 HKD
Retailer 6HK$74,511 HKD
Retailer 14HK$92,768 HKD
Retailer 10HK$105,525 HKD
Retailer 15HK$108,598 HKD
Retailer 3HK$133,133 HKD
Do Amore DiamondsHK$285,270 HKD

35 data points across 15 retailers

15 retailersHK$41,457 HKD to HK$285,270 HKD

A
Cheapest Retailer
-
HK$41,457 HKD
$5,284 USD
A
Retailer 2
-
HK$43,426 HKD
$5,535 USD
View
A
Retailer 3
-
HK$43,449 HKD
$5,538 USD
View
A
Retailer 4
-
HK$44,218 HKD
$5,636 USD
View
A
Retailer 5
-
HK$48,212 HKD
$6,145 USD
View
A
Retailer 6
-
HK$59,227 HKD
$7,549 USD
View
A
Retailer 7
-
HK$63,017 HKD
$8,032 USD
View
A
Retailer 8
-
HK$65,370 HKD
$8,332 USD
View
Final sale: no returns
A
Retailer 9
-
HK$73,397 HKD
$9,355 USD
View
A
Retailer 10
-
HK$74,511 HKD
$9,497 USD
View
B+
Retailer 11
-
HK$92,768 HKD
€11,261 EUR
View
B+
Retailer 12
-
HK$105,525 HKD
$13,450 USD
View
B+
Retailer 13
-
HK$108,598 HKD
£10,899 GBP
View
B+
Retailer 14
-
HK$133,133 HKD
$16,969 USD
View
Most Expensive
B
Do Amore Diamonds
27-1A18A5279 · Oct 31
HK$285,270 HKD
$36,360 USD
View
14 more retailers have this diamond
Prices start from HK$41,457 HKDSave up to HK$243,813 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 Princess
HK$41,457 HKD