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Marquise|Lab Grown|IGI

3.09ct F IF Marquise Lab Grown Diamond

ID • F/IF • IGI LG843628218

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843628218

Diamond specifications and retailer prices

From £1,010 GBP
$1,356 USD
As of October 31, 2026
Save £5,746 GBP (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,756 GBP at Novita Diamonds · As of October 31, 2026
View at Novita Diamonds

About this 3.09ct lab-grown marquise diamond

This 3.09ct lab-grown marquise 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 LG843628218 or 843628218. Listed at 17 retailers as of October 31, 2026, with prices from £1,010 to £6,756, a £5,746 spread on the same certified stone. Novita Diamonds lists it at £6,756. 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

3.09
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843628218
Dimensions15.57 × 7.51 × 4.69 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.57 mm7.51 mm3.09 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843628218
Side View
Table 59.0%Crown 35.7°Girdle: MED-STKPavilion 40.5°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 31
Current: £6,756 GBP|Low: £1,010 GBP|High: £7,087 GBP|Avg: £2,672 GBP
Novita 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
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Retailer 17
November 2, 2026
Retailer 15£1,010 GBP
Retailer 10£1,068 GBP
Retailer 4£1,099 GBP
Retailer 9£1,388 GBP
Retailer 11£1,406 GBP
Retailer 5£1,575 GBP
Retailer 2£1,835 GBP
Retailer 13£2,191 GBP
Retailer 17£2,253 GBP
Retailer 6£2,329 GBP
Retailer 16£2,680 GBP
Retailer 3£2,681 GBP
Retailer 12£3,116 GBP
Retailer 7£3,393 GBP
Retailer 8£3,511 GBP
Retailer 14£4,956 GBP
Novita Diamonds£6,756 GBP

13 data points across 17 retailers

17 retailers£1,010 GBP to £6,756 GBP

A
Cheapest Retailer
-
£1,010 GBP
$1,356 USD
Final sale: no returns
A
Retailer 2
-
£1,068 GBP
View
A
Retailer 3
-
£1,099 GBP
$1,475 USD
View
A
Retailer 4
-
£1,388 GBP
$1,862 USD
View
A
Retailer 5
-
£1,406 GBP
View
Retailer 6
-
£1,575 GBP
€2,013 EUR
View
Price last confirmed 8 days ago
A
Retailer 7
-
£1,835 GBP
$2,462 USD
View
B+
Retailer 8
-
£2,191 GBP
A$4,523 AUD
View
B+
Retailer 9
-
£2,253 GBP
ZAR 48,834 ZAR
View
B+
Retailer 10
-
£2,329 GBP
$3,125 USD
View
B+
Retailer 11
-
£2,680 GBP
View
B+
Retailer 12
-
£2,681 GBP
$3,598 USD
View
B+
Retailer 13
-
£3,116 GBP
View
B+
Retailer 14
-
£3,393 GBP
$4,554 USD
View
B+
Retailer 15
-
£3,511 GBP
$4,711 USD
View
B
Retailer 16
-
£4,956 GBP
$6,650 USD
View
Most Expensive
B
Novita Diamonds
cert_843628218 · Oct 31
£6,756 GBP
A$13,948 AUD
View
16 more retailers have this diamond
Prices start from £1,010 GBPSave up to £5,746 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
3.09ct Marquise
£1,010 GBP