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Radiant|Lab Grown|IGI

4.40ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG747508086

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG747508086

Diamond specifications and retailer prices

From £2,493 GBP
$3,345 USD
As of October 30, 2026
Save £14,654 GBP (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £17,147 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.4ct lab-grown radiant diamond

This 4.4ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG747508086 or 747508086. Listed at 16 retailers as of October 30, 2026, with prices from £2,493 to £17,147, a £14,654 spread on the same certified stone. Do Amore Diamonds lists it at £17,147. 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

4.40
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747508086
Dimensions11.80 × 8.22 × 5.23 mm
L/W Ratio1.44
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
11.80 mm8.22 mm4.40 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747508086
Side View
Table 63.0%Crown 44.3°Girdle: STK-THKPavilion 33.4°Culet: NoneDepth 63.6%

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: £17,147 GBP|Low: £2,451 GBP|High: £18,242 GBP|Avg: £6,420 GBP|-6.0%
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
November 1, 2026
Retailer 3£2,493 GBP
Retailer 2£2,712 GBP
Retailer 15£2,775 GBP
Retailer 5£3,007 GBP
Retailer 8£3,094 GBP
Retailer 4£3,637 GBP
Retailer 7£3,988 GBP
Retailer 14£3,988 GBP
Retailer 10£4,488 GBP
Retailer 13£5,264 GBP
Retailer 9£6,836 GBP
Retailer 11£6,913 GBP
Retailer 6£7,919 GBP
Retailer 16£9,628 GBP
Retailer 12£11,344 GBP
Do Amore Diamonds£17,147 GBP

36 data points across 16 retailers

16 retailers£2,493 GBP to £17,147 GBP

A
Cheapest Retailer
-
£2,493 GBP
$3,345 USD
A
Retailer 2
-
£2,712 GBP
$3,639 USD
View
A
Retailer 3
-
£2,775 GBP
$3,724 USD
View
A
Retailer 4
-
£3,007 GBP
$4,035 USD
View
A
Retailer 5
-
£3,094 GBP
$4,152 USD
View
Final sale: no returns
A
Retailer 6
-
£3,637 GBP
$4,880 USD
View
A
Retailer 7
-
£3,988 GBP
$5,352 USD
View
A
Retailer 8
-
£3,988 GBP
$5,352 USD
View
A
Retailer 9
-
£4,488 GBP
$6,022 USD
View
A
Retailer 10
-
£5,264 GBP
€6,728 EUR
View
B+
Retailer 11
-
£6,836 GBP
View
B+
Retailer 12
-
£6,913 GBP
A$14,273 AUD
View
B+
Retailer 13
-
£7,919 GBP
$10,627 USD
View
B+
Retailer 14
-
£9,628 GBP
$12,920 USD
View
B
Retailer 15
-
£11,344 GBP
A$23,419 AUD
View
Most Expensive
B
Do Amore Diamonds
27-1785D5AD7 · Oct 31
£17,147 GBP
$23,010 USD
View
15 more retailers have this diamond
Prices start from £2,493 GBPSave up to £14,654 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
4.40ct Radiant
£2,493 GBP