Radiant|Lab Grown|IGI

3.43ct F IF Radiant Lab Grown Diamond

EX • F/IF • IGI LG743579576

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

Certificate IGI LG743579576

Diamond specifications and retailer prices

From £1,057 GBP
$1,418 USD
As of October 31, 2026
Save £2,652 GBP (72%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,158 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 3.43ct lab-grown radiant diamond

This 3.43ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743579576 or 743579576. Listed at 23 retailers as of October 31, 2026, with a 251% 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

3.43
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50°
Pavilion angle29.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743579576
Dimensions7.20 × 7.20 × 4.61 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
7.20 mm7.20 mm3.43 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743579576
Side View
Table 61.0%Crown 50°Girdle: Slightly ThickPavilion 29.4°Culet: NoneDepth 64.0%

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 31
Current: £4,158 GBP|Low: £1,057 GBP|High: £4,222 GBP|Avg: £2,309 GBP|-1.5%
Rare Carat
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
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 10£1,057 GBP
Retailer 7£1,058 GBP
Retailer 12£1,164 GBP
Retailer 17£1,181 GBP
Retailer 9£1,253 GBP
Retailer 13£1,523 GBP
Retailer 15£1,614 GBP
Retailer 6£1,677 GBP
Retailer 19£2,027 GBP
Retailer 14£2,389 GBP
Retailer 18£2,434 GBP
Retailer 11£2,555 GBP
Retailer 16£2,803 GBP
Retailer 5£2,826 GBP
Retailer 3£3,324 GBP
Retailer 8£3,394 GBP
Retailer 2£3,399 GBP
Retailer 4£3,618 GBP
Rare Carat£4,158 GBP

39 data points across 19 retailers

23 retailers£1,057 GBP to £3,709 GBP

Retailer 1
-
£876 GBP
$1,175 USD
Price last confirmed 31 days ago
Retailer 2
-
£912 GBP
$1,224 USD
View
Price last confirmed 33 days ago
A
Retailer 3
-
£1,057 GBP
$1,418 USD
View
Final sale: no returns
Retailer 4
-
£1,058 GBP
$1,420 USD
View
Price last confirmed 30 days ago
A
Retailer 5
-
£1,164 GBP
View
A
Retailer 6
-
£1,173 GBP
HK$12,300 HKD
View
A
Retailer 7
-
£1,181 GBP
$1,585 USD
View
A
Retailer 8
-
£1,253 GBP
$1,682 USD
View
A
Retailer 9
-
£1,523 GBP
View
A
Retailer 10
-
£1,614 GBP
€2,063 EUR
View
A
Retailer 11
-
£1,677 GBP
$2,251 USD
View
A
Retailer 12
-
£2,027 GBP
$2,720 USD
View
B+
Retailer 13
-
£2,389 GBP
A$4,932 AUD
View
Retailer 14
-
£2,434 GBP
ZAR 52,758 ZAR
View
Price last confirmed 18 days ago
Retailer 15
-
£2,555 GBP
View
Price last confirmed 17 days ago
B+
Retailer 16
-
£2,803 GBP
$3,762 USD
View
B+
Retailer 17
-
£2,826 GBP
$3,792 USD
View
B+
Retailer 18
-
£3,324 GBP
$4,461 USD
View
B
Retailer 19
-
£3,394 GBP
SGD 6,154 SGD
View
B+
Retailer 20
-
£3,399 GBP
View
Retailer 21
-
£3,618 GBP
A$7,469 AUD
View
Price last confirmed 24 days ago
B
Retailer 22
-
£3,709 GBP
$4,977 USD
View
Most Expensive
Rare Carat
C35765795BC743 · Oct 21
£4,158 GBP
$5,580 USD
View
Price last confirmed 12 days ago
22 more retailers have this diamond
Prices start from £1,057 GBPSave up to £2,652 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
3.43ct Radiant
£1,057 GBP