Radiant|Lab Grown|IGI

3.05ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG728562884

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

Certificate IGI LG728562884

Diamond specifications and retailer prices

From £2,591 GBP
$3,450 USD
As of October 28, 2026
Save £6,956 GBP (73%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £12,985 GBP at Taylor and Hart · As of October 27, 2026
View at Taylor and Hart

About this 3.05ct lab-grown radiant diamond

This 3.05ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG728562884 or 728562884. Listed at 23 retailers as of October 28, 2026, with a 268% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.05
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.1°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728562884
Dimensions6.97 × 6.97 × 10.28 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.97 mm6.97 mm3.05 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728562884
Side View
Table 63.0%Crown 50.1°Girdle: STK-THKPavilion 33.9°Culet: NoneDepth 65.9%

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 28
Current: £7,598 GBP|Low: £2,847 GBP|High: £21,349 GBP|Avg: £6,861 GBP|+0.5%
Retailer 1
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 29, 2026
Retailer 4£2,968 GBP
Retailer 5£3,191 GBP
Retailer 14£3,353 GBP
Retailer 12£3,912 GBP
Retailer 13£4,385 GBP
Retailer 8£4,693 GBP
Retailer 2£4,722 GBP
Retailer 6£5,127 GBP
Retailer 15£5,240 GBP
Retailer 1£7,598 GBP
Retailer 9£7,727 GBP
Retailer 3£8,374 GBP
Retailer 11£8,400 GBP
Retailer 10£8,441 GBP
Retailer 7£21,349 GBP

42 data points across 15 retailers

23 retailers£2,591 GBP to £9,547 GBP

A
Cheapest Retailer
-
£2,591 GBP
$3,450 USD
B+
Retailer 2
-
£2,736 GBP
$3,644 USD
View
Price last confirmed 27 days ago
B+
Retailer 3
-
£2,968 GBP
$3,953 USD
View
B+
Retailer 4
-
£2,987 GBP
$3,978 USD
View
Price last confirmed 32 days ago
B+
Retailer 5
-
£3,191 GBP
$4,250 USD
View
Final sale: no returns
B+
Retailer 6
-
£3,306 GBP
$4,403 USD
View
Price last confirmed 26 days ago
B+
Retailer 7
-
£3,353 GBP
$4,465 USD
View
B+
Retailer 8
-
£3,912 GBP
$5,210 USD
View
B
Retailer 9
-
£4,385 GBP
$5,840 USD
View
B
Retailer 10
-
£4,561 GBP
$6,074 USD
View
Price last confirmed 29 days ago
B+
Retailer 11
-
£4,693 GBP
View
B
Retailer 12
-
£4,722 GBP
$6,288 USD
View
B
Retailer 13
-
£5,127 GBP
View
B+
Retailer 14
-
£5,240 GBP
A$10,736 AUD
View
Price last confirmed 21 days ago
B
Retailer 15
-
£7,598 GBP
View
B
Retailer 16
-
£7,727 GBP
$10,290 USD
View
B
Retailer 17
-
£8,374 GBP
$11,152 USD
View
B
Retailer 18
-
£8,400 GBP
A$17,210 AUD
View
B
Retailer 19
-
£8,441 GBP
ZAR 181,590 ZAR
View
B
Retailer 20
-
£9,547 GBP
$12,713 USD
View
Most Expensive
B
Taylor and Hart
KGF9DH0 · Oct 27
£12,985 GBP
$17,292 USD
View
Price under review
20 more retailers have this diamond
Prices start from £2,591 GBPSave up to £6,956 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
3.05ct Radiant
£2,591 GBP