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Marquise|Lab Grown|IGI

3.05ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG804665551

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG804665551

Diamond specifications and retailer prices

From £2,646 GBP
$3,546 USD
As of October 31, 2026
Save £10,622 GBP (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £13,269 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.05ct lab-grown marquise diamond

This 3.05ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804665551 or 804665551. Listed at 14 retailers as of October 30, 2026, with prices from £2,646 to £13,269, a £10,622 spread on the same certified stone. Taylor and Hart lists it at £13,269. 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
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804665551
Dimensions14.69 × 7.55 × 4.78 mm
L/W Ratio1.95
Girdle conditionFaceted
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
14.69 mm7.55 mm3.05 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804665551
Side View
Table 60.0%Crown 36.1°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £4,824 GBP|Low: £2,646 GBP|High: £13,269 GBP|Avg: £7,395 GBP|-14.6%
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
Taylor and Hart
October 31, 2026
Retailer 10£2,646 GBP
Retailer 12£3,182 GBP
Retailer 4£4,719 GBP
Retailer 1£4,824 GBP
Retailer 11£5,564 GBP
Retailer 3£5,728 GBP
Retailer 8£6,109 GBP
Retailer 6£6,329 GBP
Retailer 9£7,752 GBP
Retailer 13£8,422 GBP
Retailer 5£8,555 GBP
Retailer 7£8,647 GBP
Retailer 2£10,016 GBP
Taylor and Hart£13,269 GBP

39 data points across 14 retailers

14 retailers£2,646 GBP to £13,269 GBP

A
Cheapest Retailer
-
£2,646 GBP
$3,546 USD
A
Retailer 2
-
£3,182 GBP
$4,264 USD
View
B+
Retailer 3
-
£4,719 GBP
HK$49,400 HKD
View
B+
Retailer 4
-
£4,824 GBP
View
B+
Retailer 5
-
£5,564 GBP
$7,455 USD
View
B+
Retailer 6
-
£5,728 GBP
$7,675 USD
View
B+
Retailer 7
-
£6,109 GBP
€7,796 EUR
View
B+
Retailer 8
-
£6,329 GBP
$8,480 USD
View
B+
Retailer 9
-
£7,752 GBP
View
B
Retailer 10
-
£8,422 GBP
$11,284 USD
View
B+
Retailer 11
-
£8,555 GBP
$11,463 USD
View
B+
Retailer 12
-
£8,647 GBP
ZAR 187,167 ZAR
View
Retailer 13
-
£10,016 GBP
$13,420 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Taylor and Hart
MYJJX3E · Oct 30
£13,269 GBP
$17,779 USD
View
13 more retailers have this diamond
Prices start from £2,646 GBPSave up to £10,622 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 Marquise
£2,646 GBP