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Princess|Lab Grown|IGI

4.17ct D FL Princess Lab Grown Diamond

ID • D/FL • IGI LG784646990

Shape and cutting style on the report: Princess cut

Certificate IGI LG784646990

Diamond specifications and retailer prices

From £4,446 GBP
$5,957 USD
As of October 30, 2026
Save £26,139 GBP (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £30,585 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.17ct lab-grown princess diamond

This 4.17ct 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 LG784646990 or 784646990. Listed at 14 retailers as of October 30, 2026, with prices from £4,446 to £30,585, a £26,139 spread on the same certified stone. Do Amore Diamonds lists it at £30,585. 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

4.17
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784646990
Dimensions8.70 × 8.60 × 6.40 mm
L/W Ratio1.01
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
8.70 mm8.60 mm4.17 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784646990
Side View
Table 63.0%Crown 42.6°Girdle: MediumPavilion 38.7°Culet: NoneDepth 74.4%

Caratlytics Score

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A+
Exceptional
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: £30,585 GBP|Low: £4,446 GBP|High: £32,704 GBP|Avg: £9,468 GBP|-6.5%
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
November 1, 2026
Retailer 12£4,446 GBP
Retailer 10£4,627 GBP
Retailer 8£4,659 GBP
Retailer 13£4,670 GBP
Retailer 14£5,150 GBP
Retailer 6£6,174 GBP
Retailer 9£6,239 GBP
Retailer 4£6,757 GBP
Retailer 5£7,396 GBP
Retailer 7£7,959 GBP
Retailer 3£9,990 GBP
Retailer 11£10,128 GBP
Retailer 2£11,380 GBP
Do Amore Diamonds£30,585 GBP

34 data points across 14 retailers

14 retailers£4,446 GBP to £30,585 GBP

A+
Cheapest Retailer
-
£4,446 GBP
$5,957 USD
A
Retailer 2
-
£4,627 GBP
$6,200 USD
View
A
Retailer 3
-
£4,659 GBP
$6,243 USD
View
A
Retailer 4
-
£4,670 GBP
$6,257 USD
View
A
Retailer 5
-
£5,150 GBP
$6,900 USD
View
A
Retailer 6
-
£6,174 GBP
$8,272 USD
View
Final sale: no returns
A
Retailer 7
-
£6,239 GBP
$8,360 USD
View
A
Retailer 8
-
£6,757 GBP
$9,054 USD
View
A
Retailer 9
-
£7,396 GBP
$9,910 USD
View
B+
Retailer 10
-
£7,959 GBP
$10,664 USD
View
B+
Retailer 11
-
£9,990 GBP
€12,748 EUR
View
B+
Retailer 12
-
£10,128 GBP
$13,570 USD
View
B+
Retailer 13
-
£11,380 GBP
View
Most Expensive
B
Do Amore Diamonds
27-67A4BD8C6 · Oct 31
£30,585 GBP
$40,980 USD
View
13 more retailers have this diamond
Prices start from £4,446 GBPSave up to £26,139 GBP

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+
4.17ct Princess
£4,446 GBP