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Marquise|Lab Grown|IGI

2.43ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG780662360

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780662360

Diamond specifications and retailer prices

From £1,647 GBP
$2,207 USD
As of October 30, 2026
Save £4,245 GBP (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £5,892 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 2.43ct lab-grown marquise diamond

This 2.43ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780662360 or 780662360. Listed at 13 retailers as of October 30, 2026, with prices from £1,647 to £5,892, a £4,245 spread on the same certified stone. With Clarity lists it at £5,892. 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

2.43
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662360
Dimensions14.00 × 6.98 × 4.45 mm
L/W Ratio2.01
Girdle conditionFaceted
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
14.00 mm6.98 mm2.43 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662360
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.8%

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: £2,164 GBP|Low: £1,647 GBP|High: £6,481 GBP|Avg: £3,588 GBP|-13.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
October 31, 2026
Retailer 9£1,647 GBP
Retailer 2£1,863 GBP
Retailer 11£1,963 GBP
Retailer 1£2,164 GBP
Retailer 12£2,305 GBP
Retailer 6£2,434 GBP
Retailer 5£3,937 GBP
Retailer 10£3,990 GBP
Retailer 3£4,112 GBP
Retailer 7£4,382 GBP
Retailer 8£4,888 GBP
Retailer 4£5,351 GBP
With Clarity£5,892 GBP

42 data points across 13 retailers

13 retailers£1,647 GBP to £5,892 GBP

A
Cheapest Retailer
-
£1,647 GBP
$2,207 USD
A
Retailer 2
-
£1,863 GBP
HK$19,500 HKD
View
A
Retailer 3
-
£1,963 GBP
$2,630 USD
View
A
Retailer 4
-
£2,164 GBP
View
B+
Retailer 5
-
£2,305 GBP
$3,088 USD
View
A
Retailer 6
-
£2,434 GBP
€3,106 EUR
View
B+
Retailer 7
-
£3,937 GBP
ZAR 85,230 ZAR
View
Retailer 8
-
£3,990 GBP
$5,346 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£4,112 GBP
$5,510 USD
View
B+
Retailer 10
-
£4,382 GBP
View
B
Retailer 11
-
£4,888 GBP
$6,550 USD
View
B
Retailer 12
-
£5,351 GBP
$7,170 USD
View
Most Expensive
B
With Clarity
780662360 · Oct 31
£5,892 GBP
$7,895 USD
View
12 more retailers have this diamond
Prices start from £1,647 GBPSave up to £4,245 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
2.43ct Marquise
£1,647 GBP