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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 €4,730 EUR
$5,284 USD
As of October 30, 2026
Save €27,816 EUR (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €32,545 EUR 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 €4,730 to €32,545, a €27,816 spread on the same certified stone. Do Amore Diamonds lists it at €32,545. 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: €32,545 EUR|Low: €4,730 EUR|High: €39,438 EUR|Avg: €10,684 EUR|-17.5%
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
November 1, 2026
Retailer 13€4,730 EUR
Retailer 11€4,954 EUR
Retailer 9€4,957 EUR
Retailer 14€5,045 EUR
Retailer 15€5,500 EUR
Retailer 10€6,757 EUR
Retailer 5€7,189 EUR
Retailer 7€7,458 EUR
Retailer 6€8,374 EUR
Retailer 8€8,477 EUR
Retailer 3€10,584 EUR
Retailer 12€12,039 EUR
Retailer 2€12,324 EUR
Retailer 4€15,189 EUR
Do Amore Diamonds€32,545 EUR

36 data points across 15 retailers

15 retailers€4,730 EUR to €32,545 EUR

A
Cheapest Retailer
-
€4,730 EUR
$5,284 USD
A
Retailer 2
-
€4,954 EUR
$5,535 USD
View
A
Retailer 3
-
€4,957 EUR
$5,538 USD
View
A
Retailer 4
-
€5,045 EUR
$5,636 USD
View
A
Retailer 5
-
€5,500 EUR
$6,145 USD
View
A
Retailer 6
-
€6,757 EUR
$7,549 USD
View
A
Retailer 7
-
€7,189 EUR
$8,032 USD
View
A
Retailer 8
-
€7,458 EUR
$8,332 USD
View
Final sale: no returns
A
Retailer 9
-
€8,374 EUR
$9,355 USD
View
A
Retailer 10
-
€8,477 EUR
$9,471 USD
View
B+
Retailer 11
-
€10,584 EUR
View
B+
Retailer 12
-
€12,039 EUR
$13,450 USD
View
B+
Retailer 13
-
€12,324 EUR
£10,841 GBP
View
B+
Retailer 14
-
€15,189 EUR
$16,969 USD
View
Most Expensive
B
Do Amore Diamonds
27-1A18A5279 · Oct 31
€32,545 EUR
$36,360 USD
View
14 more retailers have this diamond
Prices start from €4,730 EURSave up to €27,816 EUR

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
€4,730 EUR