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Marquise|Lab Grown|IGI

2.09ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG666429657

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG666429657

Diamond specifications and retailer prices

From £551 GBP
$738 USD
As of October 30, 2026
Save £1,970 GBP (78%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,291 GBP at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 2.09ct lab-grown marquise diamond

This 2.09ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG666429657 or 666429657. Listed at 20 retailers as of October 29, 2026, with a 358% 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

2.09
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG666429657
Dimensions13.34 × 6.64 × 4.15 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.34 mm6.64 mm2.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG666429657
Side View
Table 62.0%Crown 34.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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: £3,291 GBP|Low: £528 GBP|High: £4,478 GBP|Avg: £1,518 GBP|-26.5%
Brilliant Earth
Retailer 2
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Retailer 21
October 31, 2026
Retailer 4£551 GBP
Retailer 21£599 GBP
Retailer 14£616 GBP
Retailer 6£639 GBP
Retailer 9£639 GBP
Retailer 17£769 GBP
Retailer 7£890 GBP
Retailer 3£914 GBP
Retailer 13£1,025 GBP
Retailer 18£1,059 GBP
Retailer 5£1,315 GBP
Retailer 2£1,516 GBP
Retailer 20£1,573 GBP
Retailer 15£1,648 GBP
Retailer 12£1,796 GBP
Retailer 11£1,990 GBP
Retailer 8£2,159 GBP
Retailer 19£2,187 GBP
Retailer 10£2,202 GBP
Retailer 16£2,521 GBP
Brilliant Earth£3,291 GBP

40 data points across 21 retailers

20 retailers£551 GBP to £2,521 GBP

A
Cheapest Retailer
-
£551 GBP
$738 USD
A
Retailer 2
-
£599 GBP
$803 USD
View
A
Retailer 3
-
£616 GBP
$826 USD
View
Final sale: no returns
Retailer 4
-
£639 GBP
$856 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
£639 GBP
$856 USD
View
A
Retailer 6
-
£769 GBP
$1,030 USD
View
A
Retailer 7
-
£890 GBP
$1,192 USD
View
A
Retailer 8
-
£914 GBP
$1,225 USD
View
A
Retailer 9
-
£1,025 GBP
View
A
Retailer 10
-
£1,315 GBP
$1,762 USD
View
Retailer 11
-
£1,516 GBP
A$3,126 AUD
View
A
Retailer 12
-
£1,573 GBP
$2,108 USD
View
A
Retailer 13
-
£1,648 GBP
ZAR 35,669 ZAR
View
A
Retailer 14
-
£1,796 GBP
$2,406 USD
View
B+
Retailer 15
-
£1,990 GBP
View
B+
Retailer 16
-
£2,159 GBP
$2,893 USD
View
B+
Retailer 17
-
£2,187 GBP
$2,930 USD
View
B+
Retailer 18
-
£2,202 GBP
$2,950 USD
View
B+
Retailer 19
-
£2,521 GBP
View
Most Expensive
Brilliant Earth
16422715A · Oct 21
£3,291 GBP
$4,410 USD
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from £551 GBPSave up to £1,970 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
2.09ct Marquise
£551 GBP